Plane elasticity problems
A word file is attached.
Return to the outline of the course.
Blog posts
Junior Faculty Position Opening at Princeton University
PRINCETON UNIVERSITY. Assistant Professorship. The Department of Civil and Environmental Engineering at Princeton University has initiated a search seeking to fill a tenure-track faculty position at the Assistant Professor level in any of the following areas: materials, mechanics of solids, and structural engineering. For information about our current research activities, see our webpage, http://www.cee.princeton.edu/. The Department seeks outstanding candidates with clear potential for innovation and leadership in research and teaching. The Department is interested in candidates with the capacity to establish interdisciplinary collaborations with other schools and departments at Princeton. We particularly seek to build on our strong historical ties to our School of Architecture and to the Princeton Institute for the Science and Technology of Materials (PRISM), and to develop links with broader initiatives dealing with sustainability of the built and natural environment.
Solid Mechanics Homework 21-25
21. A fiber in an infinite matrix
22. Anti-plane shear
23. Saint-Venant's principle for orthotropic materials
24. Plane problems with no length scales
25. More scaling relations: a half space filled with a power-law material
Return to the outline of the course.
Theory of Elasticity by Timoshenko and Goodier
Although I know it is not very original, I am recommending Timoshenko's Theory of Elasticity textbook. I find this book useful because it solves many classical solid mechanics problems without assuming the reader has a strong background in the subject (like me). When I am having difficulty with a homework problem, I turn to the index and it usually directs me to a section of the book directly related to the problem, or sometimes even the solution itself. Many parts of the book complement the course, such as the chapters "Plane Stress and Plane Strain" and "Analysis of Stress and Strain in 3 Dimensions."
The book starts with basic definitions and derivations of stress and strain, then applies these equations to solve problems in different coordinate systems. It also includes chapters on more specific topics, like torsion and thermal stress.
Office Hour Change for Oct. 19
Office hour for tomorrow (Oct. 19 Thursday) will be rescheduled as 4:00pm to 4:30pm.
Sorry about this.
Textbook Recommendation
It's a bit hard to recommend a text, when I have yet to find one that I really love. Currently I am working from Advanced Strength and Applied Elasticity by A.C. Ugural & S.K. Fenster. It contains all of the relevant information, though I find the explanations of the concepts a bit slim. So far is has covered all of topics we covered in class. The first four chapters seem the most relevent. These are titled Analysis of Stress; Strain and Stress-Strain Relations; Two-Dimensional Problems in Elasticity; and Failure Criteria. The rest of the text deals with more specific topics (torsion, bending, plastic behavior, etc.).
Here is a link to the Amazon page, where the book gets mediocore reviews.
Persistent step-flow growth of strained films on vicinal substrates
We propose a model of persistent step flow, emphasizing dominant kinetic processes and strain effects. Within this model, we construct a morphological phase diagram, delineating a regime of step flow from regimes of step bunching and island formation. In particular, we predict the existence of concurrent step bunching and island formation, a new growth mode that competes with step flow for phase space, and show that the deposition flux and temperature must be chosen within a window in order to achieve persistent step flow. The model rationalizes the diverse growth modes observed in pulsed laser deposition of SrRuO3 on SrTiO3
new moderator
hi everyone,
I'm a student at Harvard University working with Professur Zhigang Suo to develop iMechanica. I hope to add features to this website that will keep your research and ideas protected while encouraging the flow of communication and great ideas among the brightest minds in the sciences. If you have any ideas, comments, or suggestions please let me know. We hope you enjoy iMechanica.
The Future of Ink
Since I know (or was told 20 minutes ago) that some of you are interested in large area electronics and displays, I thought I would throw something out for you.
Lately, e-book readers have been a new trend in the tech industry. The potential for it is incredible: hundreds of books in the palm of your hand, digitized content distribution, and infinite number of bookmarks, searchable text, hyperlinks between books; the list goes on. However, all these benefits come at a price; namely battery life and readability.
But what kind of display should they use? The average LCD screen has about 72 dpi (dots per inch), meaning that there are 72 pixels in every inch of screen. While that's passable for regular computer usage, anyone who's tried heavy reading will tell you that it's just not clear enough. By comparison, the average newspaper has over 300 dpi, and the average book has about 400 dpi.
Carbon Nanotube Lecture on Nov 1st at MIT
Dr. John Hart from MIT is giving a carbon nanotube (CNT) tutorial at the International Symposoum on Nanomanufacturing (ISNM) at MIT on November 1st, Wednesday. Please see the following if you are interested.
Carbon Nanotubes: Fundamentals, synthesis, and applications
Dr. John Hart, MIT
November 1st
9.00 am - 12.30pm (with 1 break)