iMechanica - students
https://imechanica.org/taxonomy/term/157
enSelf Introduction -- Zhiyan Wei
https://imechanica.org/node/3993
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Prior Courses in Solid Mechanics:
</p>
<p>
Elasticity, Strength of Material, Plasticity, Theoretical Mechanics, Advanced Solid Mechanics, Computational Mechanics
</p>
<p>
Undergraduate Major:
</p>
<p>
Theoretical and Applied Mechanics
</p>
<p>
Strength Related to This Course:
</p>
<p>
I have already known some basic theories in elasticity and plasticity, so I guess it might be a little easier for me to understand the theoretical part taught in this course.
</p>
<p>
Weakness Related to This Course:
</p>
<p>
In previous study, I always overemphasized the mathematical skills to solve a problem and neglected some deep thinking about the physical meaning. The corresponding result is that I can solve a certain number of easy elastic problems, but I dont have a very clear physical view before I solve them.... Some people have a strong physical intuition and can guess the result even before they solve the problem. I guess they can see through the physical meaning, which I cannot...
</p>
<p>
Another weakness: I know little about finite element simulation, although I took some courses in this field before. Since I didn't try to solve a practical problem using finite element method, I cannot say I really understand it....
</p>
<p>
Research Group:
</p>
<p>
I am currently in Prof. Mahadevan's group. See web page <a href="http://www.seas.harvard.edu/softmat/">http://www.seas.harvard.edu/softmat/</a>
</p>
<p>
Likely Research Direction:
</p>
<p>
To explore the connectivity between the micro-structure and macro-mechanical behavior of amophorous solids.
</p>
<p>
Benifits of Learning This Course:
</p>
<p>
To my research:
</p>
<p>
Either to understand the nature of mechnical behavior or to make a prediction for mechnical behavior in engineering problems requires me to master some basic tools and principles in this field. This course provides me with a good opportunity to learn basic concepts, general ways to deal with a problem in solid mechanics.
</p>
<p>
To my education:
</p>
<p>
I don't want to restrict myself in the area of solid mechanics. My ambisious goal is to understand the general mechanical behavior in nature. Maybe in the end, I won't be an expert in any area, but it is always happy to understand more. Taking solid mechanics is an important and happy start for my future exploration. Prof. Suo definitely brings an impact to my congition to solid mechanics.... I find my opinions about solid mechnics is completely outdated....
</p>
</div></div></div>Mon, 06 Oct 2008 16:49:36 +0000Zhiyan Wei3993 at https://imechanica.orghttps://imechanica.org/node/3993#commentshttps://imechanica.org/crss/node/3993Solution to PS 2.6
https://imechanica.org/node/3983
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span class="Apple-style-span"></span></p>
<p>
My previous exposure to solid mechanics is tangential beyond a first semester course in beam bending, beam stretching, and beam torsion. I am a master of Mohr's circle, and am looking to extend my practice in solid mechanics to include interesting problems and applications of the theory of solids.
</p>
<p>
I studied Engineering Mechanics as an undergraduate, and received a second degree in Mathematics, with a concentration in Applied Math.
</p>
<p>
My strengths include exposure to much of the math in traditional solid and continuum mechanics, and an imagination. My weaknesses in solid mechanics are manifold, but I'll limit my list to limited exposure to solid mechanics theory, and impatience for solving problems numerically.
</p>
<p>
I'm working in the Mahadevan group.
</p>
<p>
I'm looking forward to learning more about interesting problems in soiid mechanics, and enlightening discussions with Prof. Suo and my classmates.
</p>
<p></p>
</div></div></div>Sun, 05 Oct 2008 22:45:24 +0000John M. Kolinski3983 at https://imechanica.orghttps://imechanica.org/node/3983#commentshttps://imechanica.org/crss/node/3983Introduction
https://imechanica.org/node/3980
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
My previous experiences with mechanics have been through applied research, the basics that are covered in undergraduate physics, and a single survey class on tissue mechanics. As part of my research on limb development, I worked with a viscoelastic model for mesenchymal tissue, however I admittedly did not understand it thouroughly. In fact, this lack of understanding was part of my motivation for taking this class. My undergraduate coursework focused on mathematics and computer science, and I hold B.S. degrees in both. I have applied these tools to biology problems, and in general find biology to be a good problem set to work on. While I feel comfortable with the ideas of calculus, I am looking forward to the practice this course provides in vector calculus, and more so to the practice in manipulating and solving differential equations in several dimensions. My research here at Harvard will continue to explore the ties developmental systems in biology, and the constraints put on them by their mechanical constituents. I will continue my work in limb development, with a goal of creating a model system that both replicates the observed biological phenotypes, but also predicts new phenotypes caused by genetic mutants. Furthermore, I hope to develop a more general scheme for describing cell and tissue level outgrowth, and apply it to roots, pollen, fingers, and more. More abstractly, I am interested in the solutions of the equations of fluid and solid meshanics, and feel that this class will certainly give me experience in solving these equations.
</p>
</div></div></div>Sun, 05 Oct 2008 15:47:58 +0000bjordan5553980 at https://imechanica.orghttps://imechanica.org/node/3980#commentshttps://imechanica.org/crss/node/3980Tom Milnes' First Blog Entry
https://imechanica.org/node/3948
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span class="Apple-style-span">
<p>Hi All,</p>
<p>--I have taken 3 previous courses in solid mechanics. </p>
<p>--My undergraduate major was mechanical engineering, with a concentration in vehicle dynamics.</p>
<p>-- My strength is that I've had some of this material before. My weakness is that I haven't seen it for a few years.</p>
<p>--I'm a masters student so I don't have a research group. I do work part time for a hedge fund though.</p>
<p>--Solid mechanics will add an interesting dimension to my education. </p>
<p> </p>
<p>-Tom </p>
<p></p></span></p>
</div></div></div>Fri, 03 Oct 2008 13:38:32 +0000milnes3948 at https://imechanica.orghttps://imechanica.org/node/3948#commentshttps://imechanica.org/crss/node/3948PS2 Question 6
https://imechanica.org/node/3944
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
I have not taken any courses focusing on mechanics before, though ES51 (Computer Aided Machine Design) briefly touched on some topics. My undergraduate major was Physics. My strengths will be my comfort with mathematics as well as my exposure to professor Howard Stone's undergraduate class in Fluid Mechanics (ES123). My weakness will definitely be my lack of exposure to any other mechanics courses.
</p>
<p>
I am currently a member in Robert Wood's research group. We work on developing the field of microrobotics along many novel paths, including designing soft robotics, using and developing materials with exotic or controllable mechanical properties, and creating 'composite' materials that can perform multiple functions. An example of this last research goal is to produce structural mechanical components (possibly deformable) which integrate electronics, power sources, etc.
</p>
<p>
When size and weight are so limited, material characteristics become extremely important. Taking this class will give me many tools which will be widely applicable in this research. Regarding my education in general, my primary training is as a physicist and one glaring omission in my education is my lack of exposure to a continuum theory of the nature of solids.
</p>
</div></div></div>Fri, 03 Oct 2008 06:54:15 +0000Pratheev Sreetharan3944 at https://imechanica.orghttps://imechanica.org/node/3944#commentshttps://imechanica.org/crss/node/3944Matt Pharr's First Post
https://imechanica.org/node/3943
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
My name is Matt Pharr, and I am a first year graduate student at Harvard in the School of Engineering and Applied Sciences. I am working with Dr. Zhigang Suo's research group <a href="http://www.seas.harvard.edu/suo/">http://www.seas.harvard.edu/suo/</a> . My concentration is in solid mechanics, so ES 240 is obviously fundamentally important to my future research. One of my main goals in this class is to build a solid foundation in solid mechanics. More specifically, I want to be able to better analyze problems and understand equations in terms of their physical meaning.
</p>
<p>
I received my undergraduate degree from Rice University in 2008 majoring in both mechanical engineering and materials science. Here I took some undergraduate classes that pertain to this class such as an introduction to materials science, mechanics of materials, advanced mechanics of materials, and finite element analysis.
</p>
<p>
I am still somewhat uncertain about specifically what my research will entail. To get immersed in the research process, I am currently reading papers about electromigration in lead-free solders. Hopefully I will come up with a good project that relates to this topic.
</p>
<p>
My main strength in this class is that I have taken a fair number of classes that relate to it. Hence, I have seen the development of many of the founding ideas in the past. One weakness that I may have is that I do not feel like I understood many of the equations developed in these classes physically as well as I should have. I took them at face value, without deep insight into what they mean physically and what assumptions were made in their development (at least for some equations). Hopefully I can eliminate this potential weakness in this class.
</p>
</div></div></div>Fri, 03 Oct 2008 04:32:14 +0000Matt Pharr3943 at https://imechanica.orghttps://imechanica.org/node/3943#commentshttps://imechanica.org/crss/node/3943Scholarships for Computational Mechanics in the UK for non-EU students
https://imechanica.org/node/3940
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/162">computational mechanics</a></div><div class="field-item even"><a href="/taxonomy/term/539">phd</a></div><div class="field-item odd"><a href="/taxonomy/term/1366">scholarship</a></div><div class="field-item even"><a href="/taxonomy/term/2105">Ph.D. position</a></div><div class="field-item odd"><a href="/taxonomy/term/2870">UK</a></div><div class="field-item even"><a href="/taxonomy/term/2871">non-EU</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Dear non-EU students who want to study in the UK,
</p>
<p>
You are encouraged to look at the fellowship offers below. If you qualify for these and are interested in working in a dynamic group in computational mechanics in Glasgow, please contact me directly stephane dot bordas at gmail dot com
</p>
<p>
Our department has a growing team of PhD students (more than 20 at the moment) working in cognate disciplines, which will give you a unique opportunity for a strong PhD in computational mechanics.
</p>
<p>
<a href="http://www.rediff.com/getahead/2005/nov/30abr1.htm">http://www.rediff.com/getahead/2005/nov/30abr1.htm</a>
</p>
<p>
Looking forward to discussing with you,
</p>
<p>
Stephane
</p>
<p>
PS: Please check that you qualify for one of the above fellowships, and send all details pertaining to the application so as to save time.
</p>
</div></div></div>Thu, 02 Oct 2008 19:31:52 +0000Stephane Bordas3940 at https://imechanica.orghttps://imechanica.org/node/3940#commentshttps://imechanica.org/crss/node/3940My first entry
https://imechanica.org/node/3929
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Hello,</p>
<p>My name is Pawel and I am a Junior in Harvard College, studying Mechanical and Materials Science and Engineering.
</p>
<p>
The only course in solid mechanics I've taken so far is the Harvard's undergraduate intro course ES 120 - I guess it's similar to intro courses offered at other universities. Bits and pieces of solid mechanics also appeared in some other courses, but mostly in a very basic form.
</p>
<p>
One of my strengths (although not a very important one) might be the fact that I took the intro course relatively recently, and still remember some of it. In this category I could also add interest in solid mechanics in general.
</p>
<p>
Among the weaknesses there are lack of experience with appropriate mathematical tools and techniques, and lack of any experimental experience (and hence intuition) related to solid mechanics.
</p>
<p>
Since I'm an undergraduate, I don't really have a research group. I worked a little bit for a grad student in prof. Vlassak's group, although I doubt that's relevant.
</p>
<p>
Per the above, I don't really have a research interest/direction. Perhaps this course will give me some idea of what the most interesting topics are.
</p>
<p>
If I ever decide to pursue research, it will most likely be in the area of solid/fluid mechanics or materials' science. In this context, ES 240 seems like the absolutely necessary miniumum of knowledge one must have to be able to gain some insight into those areas of engineering.
</p>
<p>
As an undergraduate, I think that ES 240 will greatly enhance my understanding of solid mechanics and will provide me with insights into behaviour of materials that I could use in other classes. I am also hoping to become more fluent in mathematical techniques most frequently used in mechanics in general.
</p>
<p>
Thanks for reading,
</p>
<p>
Pawel
</p>
</div></div></div>Thu, 02 Oct 2008 01:22:58 +0000Pawel Zimoch3929 at https://imechanica.orghttps://imechanica.org/node/3929#commentshttps://imechanica.org/crss/node/3929Kejie Zhao
https://imechanica.org/node/3928
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Hi everyone, very glad to see you here. My name is Kejie Zhao, a first year phd student working in Prof.Zhigang Suo's group (<a href="http://www.seas.harvard.edu/suo">www.seas.harvard.edu/suo</a>). My concentration is solid mechanics with the same name of this course, it also signifies its importance to my future research. I graduate from Xi'an Jiaotong University in China before coming to Harvard. There I obtained my bachelor and master degree in Engineering Mechanics and Solid Mechanics respectively. I have taken several courses related to ES240 at undergraduate level, i.e., elasticity mechanics, plasticity, non-linear continuum mechanics etc. Personally the major goal in this course is to cosolidate my background in solid mechanics and learn how to analysis engineering problems in mechanics insights. I am currently intrigued in the mechanics/fracture problems involved in battery recharge and discharge cyclings. We do think this field would bear a promising future.</p>
</div></div></div>Wed, 01 Oct 2008 20:32:09 +0000Kejie Zhao3928 at https://imechanica.orghttps://imechanica.org/node/3928#commentshttps://imechanica.org/crss/node/3928ES 240 Homework 6
https://imechanica.org/node/3913
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/2739">Fall 2008</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Hello.
</p>
<p>
My name is Sung Hoon Kang and I am a second year graduate student of Applied Physics. I did my undergraduate study in Materials Sciene and Engineering at Seoul National University, Korea.
</p>
<p>
I work with Prof. Joanna Aizenberg (<a href="http://www.seas.harvard.edu/aizenberg_lab/">http://www.seas.harvard.edu/aizenberg_lab/</a>) and my research is to study responsive polymer materials/structures. I take ES 240 to have insights for better understanding and possibly modeling <strong>movements of high aspect ratio pillars by various stimuli</strong> and I think taking ES 240 can give me a broader perspective of understanding behavior of materials because I used to work on only electrical and optical properties of materials.
</p>
<p>
Related to the course, my strength can be to study experimental systems which may give us interesting mechanics problems and have some understanding of materials, but I don't have much background in mechanics and numerical modeling.
</p>
<p>
Before taking ES 240, I took "Mechanical Behavior of Materials" course at MIT when I did a master study and took "Introduction to Solid State Physics" and "Solid: Structure and Defects" at Harvard.
</p>
<p>
It's nice to meet all of you and I believe it's a great oppotunity that I learn "Solid Mechanics" from Prof. Suo with many bright people.
</p>
<p>
Thank you.
</p>
</div></div></div>Fri, 26 Sep 2008 18:30:36 +0000Sung Hoon Kang3913 at https://imechanica.orghttps://imechanica.org/node/3913#commentshttps://imechanica.org/crss/node/3913ES 240, final projects Fall 2007
https://imechanica.org/node/2581
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/128">education</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/307">project</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Attached please find my final project.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/ming-ES240-plant%20cell%20mech%202008-01-11.pdf" type="application/pdf; length=814187" title="ming-ES240-plant cell mech 2008-01-11.pdf">ming-ES240-plant cell mech 2008-01-11.pdf</a></span></td><td>795.1 KB</td> </tr>
</tbody>
</table>
</div></div></div>Thu, 17 Jan 2008 05:18:08 +0000mingguo2581 at https://imechanica.orghttps://imechanica.org/node/2581#commentshttps://imechanica.org/crss/node/2581Singapore International Graduate Award (SINGA)
https://imechanica.org/node/2576
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/128">education</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/275">awards</a></div><div class="field-item even"><a href="/taxonomy/term/1118">graduate students</a></div><div class="field-item odd"><a href="/taxonomy/term/1723">Singapore</a></div><div class="field-item even"><a href="/taxonomy/term/1724">PhD students</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>The <em>Singapore International Graduate Award (SINGA)</em> is a collaboration between the Agency for Science, Technology & REsearch (A*STAR), the National Unviersity of Singaproe (NUS) and the Nanyang Technological University (NTU). PhD training will be carried out in English at your chosen lab at A*STAR Research Institutes, NUS or NTU. Students will be supervised by distinguished and world-renowned researchers in these labs. Upon successful completion, students will be conferred a PhD degree by either NUS or NTU.</p>
<p><strong>Applications</strong></p>
<p>To apply, please go to <a href="https://www.singa.a-star.edu.sg/">https://www.singa.a-star.edu.sg/</a> to access the SINGA application form, and note the application deadlines.</p>
</div></div></div>Wed, 16 Jan 2008 17:32:10 +0000Nanshu Lu2576 at https://imechanica.orghttps://imechanica.org/node/2576#commentshttps://imechanica.org/crss/node/2576Final project for ES 240
https://imechanica.org/node/2574
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/307">project</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>This is the pdf file for the final project given by Andew and Lei.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/Andrew_Lei_ES240.pdf" type="application/pdf; length=1168425" title="Andrew_Lei_ES240.pdf">Andrew_Lei_ES240.pdf</a></span></td><td>1.11 MB</td> </tr>
</tbody>
</table>
</div></div></div>Wed, 16 Jan 2008 02:47:45 +0000Lei Qiao2574 at https://imechanica.orghttps://imechanica.org/node/2574#commentshttps://imechanica.org/crss/node/2574ES 240 Final Presentation--Alex and Alison
https://imechanica.org/node/2562
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div><div class="field-item odd"><a href="/taxonomy/term/1725">projects</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
I am attaching a PDF of Alex and Alison's final presentation for ES 240. The topic is "Arterial Compliance and Disease."
</p>
<p>
-Alex
</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/ES240%20final.pdf" type="application/pdf; length=648446" title="ES240 final.pdf">ES240 final.pdf</a></span></td><td>633.25 KB</td> </tr>
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</div></div></div>Mon, 14 Jan 2008 00:38:42 +0000Alex Epstein2562 at https://imechanica.orghttps://imechanica.org/node/2562#commentshttps://imechanica.org/crss/node/2562ES 240 Final Project
https://imechanica.org/node/2558
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/307">project</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Here is the powerpoint of the final project, presented by Stevie Steiner and myself.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="Office presentation icon" title="application/vnd.ms-powerpoint" src="/modules/file/icons/x-office-presentation.png" /> <a href="https://imechanica.org/files/project.ppt" type="application/vnd.ms-powerpoint; length=6725120" title="project.ppt">project.ppt</a></span></td><td>6.41 MB</td> </tr>
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</div></div></div>Sun, 13 Jan 2008 16:27:21 +0000Sunny Wicks2558 at https://imechanica.orghttps://imechanica.org/node/2558#commentshttps://imechanica.org/crss/node/2558Fall 2007 ES 240 Final Project "Viscous Deformation of a Fused Quartz Tube" by Sunny Wicks and Stephen Steiner
https://imechanica.org/node/2552
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/307">project</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Attached is a PDF version of the PowerPoint presentation from our final project, titled "Viscous Deformation of a Quartz Tube Caused by Furnace Malfunction: Analysis and Modeling".</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/project_es240_viscous-deformation-of-a-quartz-tube_wicks-steiner.pdf" type="application/pdf; length=1297437" title="project_es240_viscous-deformation-of-a-quartz-tube_wicks-steiner.pdf">project_es240_viscous-deformation-of-a-quartz-tube_wicks-steiner.pdf</a></span></td><td>1.24 MB</td> </tr>
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</div></div></div>Sat, 12 Jan 2008 02:19:53 +0000Stephen Steiner2552 at https://imechanica.orghttps://imechanica.org/node/2552#commentshttps://imechanica.org/crss/node/2552ES 240 Project - Stress Analysis of Bullet Holes on the Boeing 737 Fuselage
https://imechanica.org/node/2549
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/307">project</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>See Attached</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/Stress_Analysis_of_Bullet_Holes_Final.pdf" type="application/pdf; length=2333452" title="Stress_Analysis_of_Bullet_Holes_Final.pdf">Stress_Analysis_of_Bullet_Holes_Final.pdf</a></span></td><td>2.23 MB</td> </tr>
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</div></div></div>Fri, 11 Jan 2008 20:00:17 +0000Sun Min Jung2549 at https://imechanica.orghttps://imechanica.org/node/2549#commentshttps://imechanica.org/crss/node/2549ES 240 (Fall 2007) Homework 37-40
https://imechanica.org/node/2435
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/128">education</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/194">homework</a></div><div class="field-item even"><a href="/taxonomy/term/531">harvard</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>This is the last problem set this semester. It is due on Friday, Dec. 14, 2007.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="Microsoft Office document icon" title="application/msword" src="/modules/file/icons/x-office-document.png" /> <a href="https://imechanica.org/files/Homework%2037-40.doc" type="application/msword; length=155136" title="Homework 37-40.doc">Homework 37-40.doc</a></span></td><td>151.5 KB</td> </tr>
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</div></div></div>Sat, 08 Dec 2007 21:53:55 +0000Nanshu Lu2435 at https://imechanica.orghttps://imechanica.org/node/2435#commentshttps://imechanica.org/crss/node/2435ES 240 (Fall 2007) Lecture Notes - Plasticity
https://imechanica.org/node/2434
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/128">education</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/308">lecture notes</a></div><div class="field-item even"><a href="/taxonomy/term/531">harvard</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>See attachment for ES 240 lecture notes on plasticity.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/6_Plasticity.pdf" type="application/pdf; length=2759797" title="6_Plasticity.pdf">6_Plasticity.pdf</a></span></td><td>2.63 MB</td> </tr>
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</div></div></div>Sat, 08 Dec 2007 21:51:26 +0000Nanshu Lu2434 at https://imechanica.orghttps://imechanica.org/node/2434#commentshttps://imechanica.org/crss/node/2434ES 240 Problem 29, project description
https://imechanica.org/node/2426
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Andrew and I decided to work on some design topics.
</p>
<p>
Given a reference domain, some boundary conditions and a limited amount of material, which can not fill the whole domain, we want to determine the material distribution inside the domain so that the structure generated will contain the minimum elastic energy. This is called minimum compliance problem, a topic in the field of topology optimization.
</p>
<p>
Our initial goal is to implement the numerical methods in this field to the interesting examples offered in our class, such as the wall cylinder and the plate under distributed pressure, and then analyse the computational results. If time permits, we will consider other optimization objects beside the elastic energy.<br />
</p>
</div></div></div>Fri, 07 Dec 2007 23:38:55 +0000Lei Qiao2426 at https://imechanica.orghttps://imechanica.org/node/2426#commentshttps://imechanica.org/crss/node/2426Problem 29: Project
https://imechanica.org/node/2424
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Nathan Thielen and I will be investigating straight beams, bent beams and how the analysis can be applied to hooks. We did not have much time to investigate beams in ES240 this term so we hope to gain a broader understanding of this area and share our findings with the rest of the class. The primary goal is to compare the analysis necessary for straight beams versus the analysis needed for bent beams. We choose the project because we also will have ample opportunity to investigate bent beams and hooks using FEM. If time permits we will investigate how the cross-section of hooks effects its properties.</p>
</div></div></div>Fri, 07 Dec 2007 20:25:13 +0000Christian Wylonis2424 at https://imechanica.orghttps://imechanica.org/node/2424#commentshttps://imechanica.org/crss/node/2424Final Project - Bent Beams
https://imechanica.org/node/2422
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p class="MsoNormal">
Christian and I thought comparing the theory of bent beams to that of straight beams would be interesting because we only explored straight beams this semester in class. Bent beams are important since they are encountered regularly in practice, for example a hook. The geometry of a bent beam changes the equations governing the behavior. So, understanding how the geometry changes the beams behavior is our primary interest.
</p>
</div></div></div>Fri, 07 Dec 2007 18:51:21 +0000Nathan Thielen2422 at https://imechanica.orghttps://imechanica.org/node/2422#commentshttps://imechanica.org/crss/node/2422Project Proposal
https://imechanica.org/node/2418
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div><div class="field-item odd"><a href="/taxonomy/term/1610">project proposal</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>My project will be a literature study on ferroelasticity and how it applied to how of the topics we covered in class.</p>
<p> </p>
<p>Eric Kiser </p>
</div></div></div>Fri, 07 Dec 2007 13:03:21 +0000Eric D. Kiser2418 at https://imechanica.orghttps://imechanica.org/node/2418#commentshttps://imechanica.org/crss/node/2418ES 240 Project Proposal - Jane Yoon, Sun Min Jung
https://imechanica.org/node/2416
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div><div class="field-item even"><a href="/taxonomy/term/1610">project proposal</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><strong><span>Stress/Strain </span></strong><strong><span>Analysis of </span></strong><strong><span>Bullet-Holes</span></strong><strong><span></span></strong><strong><span>on</span></strong><strong><span> </span></strong><strong><span>the Boeing 737 Fuselage</span></strong><strong><span> </span></strong><span>Boeing 737 is the most popular aircraft in the sky today, with each one taking off or landing on average of every 6 seconds. </span>One of the most important analyses conducted on <span>these passenger </span>aircraft<span>s</span> is determining the impact of any damage <span>on</span> the <span>fuselage</span>. In order to conduct such analysis, several advanced computational modeling techniques <span>are used</span> to simulate the effects<span> and thus fix them</span> <span>to prevent any disasters</span>.<span></span><span> </span>What m<span>ost</span> people<span>, including Boeing engineers,</span> may not be <span>able to foresee,</span> is that prior to the assembly of <span>the Boeing 737</span> aircrafts, <span>the fuselage</span> <span>sometimes </span>suffer<span>s</span> <span>an unusual </span>structural damage during transportation.<span> </span>More specifically, while the <span>fuselage</span> <span>is</span> being relocated <span>on a train </span>from <span>Wichita, Kansas</span> (where the <span>fuselage</span> <span>is manufactured</span>) to <span>Renton, Washington</span> (where parts are assembled), <span>several</span> bullet holes are found <span>occasionally </span>throughout the large <span>fuselage</span> structures<span>. </span><span> </span><span>These damages are </span>due to civilians <span>practicing </span>shooting <span>skills </span>at the <span>moving fuselages</span> during transportation.<span></span><span> </span>These structural damages cause residual stress and strain fields that need to be addressed in order to repair these structures.<span> </span>This project aims to <span>apply</span> <span>continuum mechanics as well as </span>finite element analysis (FEA) <span>via the </span>program ABAQUS to model the damage that bullet-holes cause to <span>the fuselage</span>, and to analyze the resulting stress and strains caused by these deformations. We will look at <span>4</span> particular cases:<span></span><span> </span>1<span>.</span> stress/strain caused by a single bullet hole<span></span>2<span>.</span> stress/strain caused by two bullet holes at a finite distance apart<span></span><span>3. stress/strain caused by a single bullet hole near a window</span><span>4. stress/strain caused by two bullet holes at a finite distance apart near a window</span><span> </span>In addition to these analyses, we will attempt to also determine how the distance between the centers of the two bullet holes affects the stress and strain relationship; in other words, we will try to analyze the case where two bullet holes overlap.<span></span><span> </span><span><span> </span></span>In order to begin stress/strain analysis on the damaged <span>fuselage</span>, we will first mathematically compute the residual stress and strain fields caused by simplified models, such as the Lamé problem for cylindrical shapes.<span> </span>We will then make more complicated models to analyze the more intricate situation of the two bullet holes placed in proximity to one another, and the case of the two bullet holes overlapping.<span> </span>Based on these mathematical models, we will then use ABAQUS to determine how similar the theoretical expressions and values are to the FEA simulated ones.<span></span><span> </span><span><span> </span></span><span>For this project, we will </span><span>attempt to simulate all the properties of a</span><span> Boeing</span><span> 737</span><span> </span><span>fuselage </span><span>to model our system.<span> </span></span><span>Since most of the information is Boeing Property and not available to us, we will research to find similar material constants that make up the fuselage</span><span>. </span><span>T</span><span>his is an actual real-life problem faced by Boeing engineers, </span><span>and </span><span>we will use as much information as possible to make sure our analyses follow as closely to the specifications o</span><span>f the actual Boeing 737 fuselage.</span></p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="Microsoft Office document icon" title="application/octet-stream" src="/modules/file/icons/application-octet-stream.png" /> <a href="https://imechanica.org/files/ES240_Project_Proposal.Final_.doc" type="application/octet-stream; length=24576" title="ES240_Project_Proposal.Final_.doc">ES240_Project_Proposal.Final_.doc</a></span></td><td>24 KB</td> </tr>
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</div></div></div>Fri, 07 Dec 2007 09:01:07 +0000Sun Min Jung2416 at https://imechanica.orghttps://imechanica.org/node/2416#commentshttps://imechanica.org/crss/node/2416When Quartz Tubes Start to Melt, or, Why the CVD Furnace Was Down for Four Weeks: Problem 29
https://imechanica.org/node/2415
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
<strong><br />
Overview.</strong> This post is a description of the project Sunny Wicks and I will be pursuing for this class, to satisfy the requirements for Problem 29.</p>
<p><strong><br />
Description.</strong> We'd like to model our tube furnace in ABAQUS, in particular a spectacular incident involving an unexpected temperature jump that induced viscoelastic/plastic deformation of a fused quartz tube. This will involve a comparison of hand calculations of simplified models, ABAQUS results for the viscoelastic deformation, and the actual "experimental" results. We hope to explore the mechanisms of time- and temperature-dependent viscoelastic deformation in the tube under loads on its ends as well as the issues related to representing viscoelastic deformation and temperature variantions in modeling software. With the actual deformed quartz tube and recorded temperature data versus time, we can check the accuracy of several complexities of representations, varying from a simple cantilever beam under point and thermal loads to a more detailed model and temperature profile in ABAQUS.
</p>
</div></div></div>Fri, 07 Dec 2007 08:55:58 +0000Stephen Steiner2415 at https://imechanica.orghttps://imechanica.org/node/2415#commentshttps://imechanica.org/crss/node/2415ES 240 Problem Set #8, Problem #20 - Green's function of biharmonic operator is not positive definite
https://imechanica.org/node/2412
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/1207">student</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div><div class="field-item odd"><a href="/taxonomy/term/1725">projects</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Professor Vlassak mentioned that last year every single person did a finite element project. He said he wanted to see more theory projects, so I decided to take him up on that.
</p>
<p>
I was browsing around one day and happened upon an article that explained that while the Green's function of the laplacian was positive definite, the biharmonic operator's Green's function is not. Physically, this has significance.
</p>
<p>
Poisson's equation can be used to model the deformation of a thin elastic membrane due to an applied force. Intuitively, it makes sense that if the membrane is pushed from one direction, every part of it will deflect in that direction. That this in fact occurs is a result of the positive definiteness of the Green's function of the laplacian. At one time it was conjectured that the same should be the case for the biharmonic operator (laplacian of the laplacian). In fact, this is not the case.
</p>
<p>
What this means is that there are cases when pushing on a plate will cause some portion of the plate to move back towards you! Again, this results from the non-positive definiteness of the Green's function of the biharmonic operator.
</p>
<p>
The "classic" case appears to be an elliptical plate. If the ellipse is eccentric enough, then this curious behavior can occur. For my project I am going to learn some things about Green's functions and their properties. I will also learn how to solve for the deflection of an elliptical plate to illustrate this behavior.
</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/jwhitneyES240Project.pdf" type="application/pdf; length=267929" title="jwhitneyES240Project.pdf">jwhitneyES240Project.pdf</a></span></td><td>261.65 KB</td> </tr>
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</div></div></div>Fri, 07 Dec 2007 04:44:31 +0000John Peter Whitney2412 at https://imechanica.orghttps://imechanica.org/node/2412#commentshttps://imechanica.org/crss/node/2412Writings of scientists on doing research
https://imechanica.org/node/2389
<div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/172">book</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
In a previous post, <a href="node/2089">Learning to be a PhD advisor</a>, I wrote about learning to do my job from students. Over the years, I have also learned from writings of other scientists on doing research, its dynamics: competition, despair, and exhilaration... Here is a small sample that occurs to me this morning.
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<ul><li>J.D. Watson, <a href="http://www.amazon.com/Double-Helix-Personal-Discovery-Structure/dp/0451627873/ref=sr_11_1?ie=UTF8&qid=1196514891&sr=11-1">The Double Helix</a>. This 143-page book, first published in 1968, was Watson's account of how he and others discovered the molecular structure of DNA. A must read for all scientists and anyone who would like to know about research. </li>
<li>G.H. Hardy, <a href="http://www.amazon.com/Mathematicians-Apology-Canto-G-Hardy/dp/0521427061/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1196517395&sr=1-1">A Mathematician's Apology</a>, Cambridge University Press, 1940. This apology also speaks for those struggling to discover something both beautiful and useful. </li>
<li>G. M. Whitesides, <a href="http://219.232.54.3/cgi-bin/LB5000/attachment.cgi?forum=37&topic=1241&postno=1&type=.pdf">Writing a paper</a>. Advanced Materials 15, 1375-1377, 2004. This three-page essay advocates a process: start writing a paper at the same time you start a research project. Every thinking person should read this essay, and give the process a try. Whitesides is a University Professor at Harvard. He has published about 1000 papers, and is the <a href="node/2345#comment-5927">most cited living chemist</a>. </li>
<li>S.M. Ulam, <a href="http://www.amazon.com/Adventures-Mathematician-S-M-Ulam/dp/0520071549/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1196517563&sr=1-1">Adventures of a Mathematician</a>, University of Californian Press, 1991. </li>
<li>J.E. Oliver, The incomplete guide to the art of discovery, Columbia University Press, New York, 1991. (<a href="http://www.amazon.com/Incomplete-Guide-Art-Discovery/dp/0231076215/ref=sr_1_1/002-1350080-6064837?ie=UTF8&s=books&qid=1192912891&sr=1-1">Amazon page</a>, or <a href="http://ecommons.library.cornell.edu/handle/1813/83">free download</a> at eCommons of Cornell University). Part of this book was discussed in an <a href="node/2156">iMechanica thread</a>. </li>
<li>Gian-Carlo Rota, <a href="http://www.rota.org/hotair/lesson.html">Ten lessons I wish I had been taught</a>. This web page was pointed out in a <a href="node/2311">recent post</a> by Amit Acharya. I must have read these lessons before in a book, for I remember Rota's teaching on publishing. </li>
<li>S.P. Timoshenko, As I Remember, Van Nostrand, 1968. </li>
<li>Richard Hamming, <a href="http://www.cs.virginia.edu/~robins/YouAndYourResearch.html">You and your research</a>, transcription of a seminar given at Bell Communications Research, 1986. Hamming won the <a href="http://awards.acm.org/homepage.cfm?srt=all&awd=140">Turing Award</a> in 1968. </li>
<li>W. Bothe, <a href="node/598">Advice to Young Physicists</a>, Physics Today, September 1958. Bothe won the 1954 Nobel Prize in Physics.</li>
<li>P.B. Medawar, <a href="http://www.amazon.com/Advice-Young-Scientist-Alfred-Foundation/dp/0465000924/ref=sr_1_1?ie=UTF8&s=books&qid=1195926991&sr=1-1">Advice to a young scientist</a>, Basic Books, 1979. Medawar won the 1960 Nobel Prize in Physiology or Medicine.</li>
</ul><p>
Let us know about your favorite readings on doing research.
</p>
</div></div></div>Sat, 01 Dec 2007 14:32:26 +0000Zhigang Suo2389 at https://imechanica.orghttps://imechanica.org/node/2389#commentshttps://imechanica.org/crss/node/2389ES 240 (Fall 2007) Lecture Notes - Viscoelasticity
https://imechanica.org/node/2386
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/128">education</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/308">lecture notes</a></div><div class="field-item even"><a href="/taxonomy/term/531">harvard</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
See attachment for ES 240 lecture notes on viscoelasticity.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/5_viscoelasticity.pdf" type="application/pdf; length=3573256" title="5_viscoelasticity.pdf">5_viscoelasticity.pdf</a></span></td><td>3.41 MB</td> </tr>
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</div></div></div>Fri, 30 Nov 2007 19:01:32 +0000Nanshu Lu2386 at https://imechanica.orghttps://imechanica.org/node/2386#commentshttps://imechanica.org/crss/node/2386ES 240 (Fall 2007) Homework 29-36
https://imechanica.org/node/2385
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/128">education</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/194">homework</a></div><div class="field-item even"><a href="/taxonomy/term/531">harvard</a></div><div class="field-item odd"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>This problem set is due Friday, Dec.7, 2007.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
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<tr class="odd"><td><span class="file"><img class="file-icon" alt="Microsoft Office document icon" title="application/msword" src="/modules/file/icons/x-office-document.png" /> <a href="https://imechanica.org/files/Homework%2029-36.doc" type="application/msword; length=75776" title="Homework 29-36.doc">Homework 29-36.doc</a></span></td><td>74 KB</td> </tr>
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</div></div></div>Fri, 30 Nov 2007 19:00:04 +0000Nanshu Lu2385 at https://imechanica.orghttps://imechanica.org/node/2385#commentshttps://imechanica.org/crss/node/2385ES 240 (Fall 2007) Lecture Notes - Bending of Plates
https://imechanica.org/node/2318
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/128">education</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/157">students</a></div><div class="field-item odd"><a href="/taxonomy/term/176">ES 240</a></div><div class="field-item even"><a href="/taxonomy/term/179">solid mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/308">lecture notes</a></div><div class="field-item even"><a href="/taxonomy/term/531">harvard</a></div><div class="field-item odd"><a href="/taxonomy/term/656">education</a></div><div class="field-item even"><a href="/taxonomy/term/1316">Fall 2007</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>ES 240 notes for Bending of plates is attached.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/4_Bending%20of%20plates.pdf" type="application/pdf; length=1565088" title="4_Bending of plates.pdf">4_Bending of plates.pdf</a></span></td><td>1.49 MB</td> </tr>
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</div></div></div>Mon, 19 Nov 2007 16:26:57 +0000Nanshu Lu2318 at https://imechanica.orghttps://imechanica.org/node/2318#commentshttps://imechanica.org/crss/node/2318Error | iMechanica