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Stress and Deformation: A handbook on tensors in geology by Gerard Oertel

Despite the title, the book covers very little specifically on geology.  It works through stress, strain, and other tensor quantities, but assumes you know little about the math.  Fully worked problems make up the bulk of the book following a few introcutory chapters.  I've found it a nice review of the math, but haven't fully explored the solution sections.  I got the book from Cabot Science Library here at Harvard. I wouldn't recommend buying it on amazon it's not worth the $72, but it is a nice addition to Timoshenko's theory of elasticity.

Joseph X. Zhou's picture

Research experience from a physicist

Just back from Prof. Mahir Hussein's seminar. He is really one of best physicist I  have ever met. In past 30 years, he published more than 200 papers in the field of nuclear resonance, laser accelerated particles etc. There are more than 30 papers published in PRL alone. When input his name " M.Hussein" in arXiv.org, you can easily found 95 papers by him.

ES 240 student fall 2007

My undergraduate and master major is engineer mechanics. I have took several courses about this field, like theory of elasticity and mechanics of materials. But my major during master degree is plant bio-mechanics, especially the role of water surface tension and water transport. So I deeply feel that I need to learn solid mechanics again. That is why I choose this course.

Zhigang Suo's picture

Learning to be a PhD advisor

We professors usually start our jobs unprepared. In our days as students, we are considered talented if we can solve problems posed by our professors. We might be even considered brilliant if we can solve them quickly and make a few extensions. After solving a few such problems, we write a thesis. We are then entrusted with a job as a professor. We soon realize that the skill of solving problems posed by others only plays a minor role in our jobs.

Boundary Element for Cavity Problem

Dear BEM experts:

I am trying to find a boundary element solution for the problem of a cavity in an infinte space. The boundary condition is such that the cavity boundary is subjected to a constant radial influx. I have used the standard fundamental solution for the interior case (finite domain). The results, I obtained for the potential were reasonable for points inside the exterior region. However, on the boundary, the results for the potential were in the order of 10^12 (instead of zero value)!! Any idea what went wrong. Thanks. Husain

Boundary Element Method for the Cavity Problem

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Dear BEM experts:

I am trying to find a boundary element solution for the problem of a cavity in an infinte space. The boundary condition is such that the cavity boundary is subjected to a constant radial influx. I have used the standard fundamental solution for the interior case (finite domain). The results, I obtained for the potential were reasonable for points inside the exterior region. However, on the boundary, the results for the potential were in the order of 10^12 (instead of zero value)!!

Any idea what went wrong. Thanks.

Husain

Cai Shengqiang's picture

ES 240 Problem 6

I have got the master degree of Solid Mechanics in University of Science and Technology of China. Actually, I have taken several courses related to this subject, such as strength of materials and the theory of elasticity. So, my strength may be that I have some  knowledge about it, but my poor ability to solve PDE or even ODE could be the specific obstacle for studying this course. I will do research in Suo’s group(http://www.seas.harvard.edu/suo/), and my research may be related to soft matters, such as gels.

samik das's picture

Anisotropic Green's Function

Can anybody tell whether there is any closed form solution for Green's function in an anisotropic material? If yes it would be great if you share some of the literatures on this topic.

ES 240 problem 6

My name's Alison Forsyth, I'm a G2 biomedical engineer at Harvard.  I did my undergrad at Syracuse University where I majored in bioengineering.  Prior courses in solid mechanics are: mechanics of materials, materials processing and properties, and advanced biomechanics.

Nanshu Lu's picture

ES 240 (Fall 2007) Office hour change

To all students in ES 240 this semester,

Due to popular demand my office hour is moved from Tuesday to Thursday 4~5pm starting from this week. The location is changed to Rm. 123, Maxwell Dworkin (33 Oxford Street).

Nanshu

 

Hello

Hi,
I am currently working as a Design Engineer-CAE in Bangalore,India.Presently interested in doing a MS/Mtech in the field of Mechanical Design and analysis through a distance learning program/part time course.It would be great if someone suggests an university(in India/abroad) where these kind of courses are offered.
Regards,
Ankita

20th Annual Melosh Competition at Duke University

The 20th Annual Melosh Competition for the Best Student Paper on Finite Element Analysis will be held at Duke University on April 25, 2008.  The competition has become one of the premier graduate student events in the broad area of mechanics.   We have held the competition at a variety of locations over the past several years, and this year we are returning to Durham.   

Henry Tan's picture

balance the advanced discussions and teaching activities in iMechanica

Dear Moderators:
Is there anyway not to show the posts from my class (including mine) on “recent comments”?

Too many student posts (around 170 students) and my discussions with them will crowd the space of the "recent comments" section, which should be reserved for more advanced discussions that come up.

Any other suggestions on the classroom behaviours that may not be appropriate for iMechanica?

Banding in FEM

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I know the following: In linear FE analysis with linear constitutive law, say CST, there will not be any discontinuity across the adjacent (or neighboring) elements, for any of the fields---displacements, strains or stresses. But I do have certain questions that are not very well addressed in the introductory FEM texts:

(i) Assuming a displacement-based formulation, under what conditions would you expect discontinuities (or inter-element banding) to possibly appear in: (a) stresses? (b) strains? (c) displacements?

Jonathan Bosch's picture

Mechanics is really cool

hello fellow and future engineers/mechanicians i just want to say that I think mechanics is really cool and especially taught by Henry Tan! I hope this gets me a few points ;-)

BoJing Zhu's picture

Heisenberg Model and Ising Model

when we talk about magnetism, we use Ising Model or Heisenberg model

if possible can you give me some suggestion about these two model for (one dimensional, two dimensional)

shengke zhi's picture

Teaching Mechnical Engineering in iMechanica is an Engineering topic or an Education one, or even a Management Strategy

To Henry and All,

To Henry and All,Regarding to Henry's distinguish idea about Teaching Mechanics in iMechanica, I am wondering is it an Mechanical topic or an Education one, or even a Management Strategy? The same phenomenon does not only exist in Mechanics education but also in all engineering fields.   

Why we struggle Engineering teaching?

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