In a pure liquid, molecules touch one another but change neighbors frequently.  External forces cause the liquid to change shape by viscous flow.  Thermal agitation causes  molecules to undergo self-diffusion.  The two phenomena--viscous flow and self-diffusion--often result from a single rate-limiting process:  molecules change neighbors.  This simple picture is amply confirmed by the Stokes-Einstein relation, which links the viscosity and self-diffusivity for many liquids over wide ranges of temperature.

All vacancies have been fulfiled.

Dear all

My project work is in crack analysis, so I used cohesive zone model for crack analysis in Abaqus.I implement the cohesive element in crack path but I don't known how to plot crack extension vs time(load, J-integral) curve.

Pls suggest the procedure for ploting crack extension curve.

thanks.

The Kang Group at Johns Hopkins University is looking for outstanding candidates to join the group. We have openings as below.

The Bioengineering Science Research Group at the University of Southampton invites applications for an 18 month post-doctoral position investigating the mechanical performance of unicondylar knee arthroplasty (UKA). 

Soft Matters, (2014) Advance article

Dear Colleagues,

You are welcome to submit abstracts to the workshop of  "International Workshop on Pattern Formation in Soft Materials" chaired by Prof. Zhigang Suo & Prof. Yibin Fu, which will be held from 1th to 4th of June 2015 in Tianjin, China.  More details could be got by clicking on http://www.iwsm2015.org/. Thanks for your attention.

Best wishes,

Yu-Xin XIE

Prof. Wei Cai at the Mechanical Engineering Department of Stanford University is seeking a postdoctoral researcher to lead a project on the modeling of grain structure evolution in the surface layer under friction.  The major task of this project is the development of a phase field model for grain/sub-grain structure evolution under friction.  It is likely that molecular dynamics and dislocation dynamics simulations would be required as well to obtain a good physical understanding of the process.

Two PhD positions are available immediately in the Computational Materials & Mechanics Laboratory at Missouri University of Science and Technology (Rolla):

1.  Density functional theory calculations: Advanced High Strength Steels

2.  Multi-phase field modeling: Boride Ceramics with Improved Fracture Toughness at Elevated Temperatures

Candidates should have a master's degree in mechanical engineering, materials science and engineering, solid-state physics, or applied mathematics. Experience in DFT, MD, or phase field modeling is desired.