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ES 240 Homework 16

Submitted by Sung Hoon Kang on

* Title of the post: Theory of Elasticity by S.P. Timoshenko and J.N. Goodier

 

 

* If there are already helpful reviews of the book online, please make a hyperlink in your

post to the web page of the review. (http://www.amazon.com/review/product/0070858055/ref=dp_db_cm_cr_acr_txt…)

 

* Outline the content of the book.

Chapter 1. Introduction

Decomposition of the displacement gradient into elastic and plastic parts

Submitted by Kamyar M Davoudi on

We know that total strain is the symmetric part of the displacement gradient. Total strain can be represented by the sum of the elastic and plastic (eigen) strains. Let consider a dislocation in an arbitrary solid. Suppose we computed the displacement filed, therefore the total strain can be obtained immediately. What are the criteria for the decomposition of the total strain into elastic and plastic parts?

 

Adiabatic shear banding

Submitted by D.Rittel on

The subject of adiabatic shear banding is quite classical and the main assumption is that it consists of  structural/mechanical instability in which the thermal softening effects play a dominant role in the generation of the band (Zener-Hollomon).

I would like to focus on the phase that precedes global failure, namely up to the peak stress or strain) at which the material starts to exhibit negative strain hardening.

A TEM postdoc position is available at Sandia National Lab.

Submitted by Jianyu Huang on

Job Description: The CINT Science Department is searching for a postdoctoral appointee to pursue research in the area of leading-edge electron microscopy of nanomaterials and their properties. The successful candidate will work closely with the staff scientist heading electron microscopy research activities at CINT on topics related to the structural, mechanical, thermal, and electrical properties of modern nanomaterials.

Research Projects

Submitted by pengxuhust on

Heat and mass transfer in tree-like network: Study the transport properties in the tree-like network (i.e. vascular system and brochinal tree of mammals), and explore the application of tree-like network in engineering; 

Fractal analysis of permeability in porous media: set up microscopic seepage flow model for homogenous and heterogeneous porous media, derive analytical permeability with fractal theory;

Journal Club Forum for October 15th: Experimental Solid Mechanics at the Nanoscale

Submitted by Ravi-Chandar on

Browsing through past themes, I realize that this is the third time the topic of experimental mechanics at the nanoscale has been highlighted in the jClub forum. There are many problems that require experimental research at the nanoscale that we can do this a few more times without being repetitive. I would like to focus this discussion on the fundamental issue of friction.

Faculty Position in Sustainable Material Synthesis and Characterization at the University of Pittsburgh

Submitted by albertto on

The Department of Civil and Environmental Engineering at the University of Pittsburgh invites applications for a faculty position effective September 1, 2009. The search is open to all ranks depending on qualifications and experience.