Prior Courses in Solid Mechanics:

Elasticity, Strength of Material, Plasticity, Theoretical Mechanics, Advanced Solid Mechanics, Computational Mechanics

Undergraduate Major:

Theoretical and Applied Mechanics

Strength Related to This Course:

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.

Weakness Related to This Course:

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.

I studied Engineering Mechanics as an undergraduate, and received a second degree in Mathematics, with a concentration in Applied Math.

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.

Hi All,

--I have taken 3 previous courses in solid mechanics. 

--My undergraduate major was mechanical engineering, with a concentration in vehicle dynamics.

-- 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.

--I'm a masters student so I don't have a research group.  I do work part time for a hedge fund though.

--Solid mechanics will add an interesting dimension to my education. 

-Tom 

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.

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 http://www.seas.harvard.edu/suo/ .  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.

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Hello,

My name is Pawel and I am a Junior in Harvard College, studying Mechanical and Materials Science and Engineering.

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.

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.

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 (www.seas.harvard.edu/suo). 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.

Hello.

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.

I work with Prof. Joanna Aizenberg (http://www.seas.harvard.edu/aizenberg_lab/) and my research is to study responsive polymer materials/structures. I take ES 240 to have insights for better understanding and possibly modeling movements of high aspect ratio pillars by various stimuli 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.

Attached please find my final project.

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This is the pdf file for the final project given by Andew and Lei.

I am attaching a PDF of Alex and Alison's final presentation for ES 240.  The topic is "Arterial Compliance and Disease."

-Alex

Here is the powerpoint of the final project, presented by Stevie Steiner and myself.

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".

See Attached

We'd like to model our tube furnace in ABAQUS, in particular a
spectacular incident involving an unexpected temperature jump that
induced plastic deformation of a fused quartz tube. This will involve a
comparison of hand calculations of simplified models, ABAQUS results
for plastic and 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 deformation
and temperature variations 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

This is the last problem set this semester. It is due on Friday, Dec. 14, 2007.

See attachment for ES 240 lecture notes on plasticity.

Andrew and I decided to work on some design topics.

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.

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.
 

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.

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.

My project will be a literature study on ferroelasticity and how it applied to how of the topics we covered in class.

Eric Kiser 

Stress/Strain Analysis of Bullet-Holeson the Boeing 737 Fuselage Boeing 737 is the most popular aircraft in the sky today, with each one taking off or landing on average of every 6 seconds.