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Two PhD positions available at the Department of Petroleum Engineering, Texas A&M University

Submitted by sabedi on

<p>Two PhD positions are available at the Department of Petroleum Engineering, Texas A&amp;M University in the area of characterization and micromechanical modeling of organic-rich shales. Candidates should have a BS or MS degree in civil engineering, mechanical engineering, petroleum engineering, material science or other related areas. Candidates with background in experimental and modeling of porous materials are highly preferred.

A single theory for some quasi-static, supersonic, atomic, and tectonic scale applications of dislocations

Submitted by Xiaohan Zhang on

Xiaohan Zhang             Amit Acharya                Noel J. Walkington              Jacobo Bielak

We describe a model based in continuum mechanics that reduces the study of a significant class of problems of discrete dislocation dynamics to questions of the modern theory of continuum plasticity. As applications, we explore the questions of the existence of a Peierls stress in a continuum theory, dislocation annihilation, dislocation dissociation, finite-speed-of-propagation effects of elastic waves vis-a-vis dynamic dislocation fields, supersonic dislocation motion, and short-slip duration in rupture dynamics.

Nanodurotaxis: a fundamental law of nanoscale directional motion

Submitted by Tienchong Chang on

Hi all,

One of our recent works on nanoscale directional motion induced by stiffness gradient.

I hope you will find it interesting.

http://dx.doi.org/10.1103/PhysRevLett.114.015504

This work has been presented in 2014 MRS Spring Meeting by Prof. Huajian Gao (the PPT file he used is attached): https://mrsspring14.zerista.com/event/member/109225

Best,

Tienchong

Modeling damage and fracture within strain-gradient plasticity

Submitted by Emilio Martíne… on

I hope some of you (especially those working on fracture and damage modeling) may find this work interesting:

Modeling damage and fracture within strain-gradient plasticity

http://www.sciencedirect.com/science/article/pii/S0020768315000505#

Mechanical responses and deformation mechanisms of an AZ31 Mg alloy- Part 2

Submitted by Amit Pandey on

Recent paper is Part-2 of the paper mentioned below

 http://imechanica.org/node/10104&nbsp;

http://www.sciencedirect.com/science/article/pii/S0749641910001142&nbsp;

Mechanical responses and deformation mechanisms of an AZ31 Mg alloy sheet under dynamic and simple shear deformations