Blog posts

Postdoc position available at Oak Ridge National Laboratory

Submitted by Congrui Jin on Sun, 10/26/2014 - 19:16

Purpose: Under general supervision, the postdoctoral research associate will be conducting research specifically in battery manufacturing R&D to lower cost, raise energy density, increase production yield, and address manufacturing bottlenecks. This incumbent will work in close collaboration with other researchers involved with ORNLs applied energy storage program. This position resides in the Department of Energy (DOE) Battery Manufacturing Facility and the Manufacturing Systems Research Group at the Oak Ridge National Laboratory (ORNL).

zero pivot problem in 3d vcct delamination modeling

Submitted by x.yun on Sun, 10/26/2014 - 14:18

Dear all,

I'm trying to modeling an 3d Mode I delamination problem using VCCT method. C3DR8 element is used thereby. Every time after submitting the job it warned me with that "Solver problem: zero pivot...". I assume it may be caused by over-constraint, but I can't find where I exactly goes wrong. I've uploaded the .inp file. Could anyone can give me a hand? Thanks a lot.

Leo

determination of stiffness matrix of transversely isotropic material

Submitted by yzhou on Sun, 10/26/2014 - 05:20

research

transversely isotropic material

Dear all, I am an applied mathematician and I have been stucked by the this general question for a while, i.e., to determine the stiffness matrix of transversely isotropic material from known strain and stress tensors. The definition of transversely isotropic tells us that the stiffness matrix can be defined by 5 constants, see attached figure. C₄₄is easy to determine, so we can focus on the remaining 4 constants. I attempted to establish 4 linear equations for these 4 constants with the known strain and stress components.

Multiple postdoctoral research positions at Nanyang Technological University, Singapore

Submitted by Kun Zhou on Sun, 10/26/2014 - 04:37

job

Enthusiastic and highly motivated postdoctoral scientists are sought to work on the following topics at Nanyang Technological University, Singapore.

1. Nanostructured membranes for water purification.

2. Solar cells based on graphene-semiconductor heterojunction

3. Wear and contact fatigue

4. 3D printing.

The candidates should have rich experiences in relevant research areas, good publication records and excellent writing skills.

b

Submitted by chanseok on Sat, 10/25/2014 - 23:39

education

The role of substrate pre-stretch in post-wrinkling bifurcations

Submitted by Lihua Jin on Sat, 10/25/2014 - 16:12

research

mechanical instability

Anesia Auguste, Lihua Jin, Zhigang Suo, Ryan C. Hayward. The role of substrate pre-stretch on post-wrinkling bifurcations. Soft Matter 10, 6520-6529(2014).

Ridge localizations and networks in thin films compressed by incremental release of large equi-biaxial substrate pre-stretch

Submitted by Lihua Jin on Sat, 10/25/2014 - 16:04

research

mechanical instability

Atsushi Takei, Lihua Jin, John W Hutchinson, Hiroyuki Fujita, Ridge localizations and networks in thin films compressed by incremental release of large equi-biaxial substrate pre-stretch, Advanced Materials, 2014, 26 (24): 4061-4067.

PhD Position in Computational Mechanics at the University of Stuttgart

Submitted by Marc-Andre Keip on Fri, 10/24/2014 - 13:09

job

At the Junior Research Group on Computational Micromechanics and Material Design at the
University of Stuttgart, Institute of Applied Mechanics, Chair of Material Theory, a

PhD position

is to be filled as soon as possible. The position is funded by the German Research Foundation
(DFG) in the framework of the Cluster of Excellence on Simulation Technology and initially
limited to the duration of three years (salary according to E 13 TV-L).

The research work is concerned with computer-oriented methods of continuum mechanics