Blog posts

Reactive flow in silicon electrodes assisted by the insertion of lithium

Submitted by Kejie Zhao on Wed, 07/25/2012 - 17:43

http://pubs.acs.org/doi/abs/10.1021/nl302261w

Weyl Geometry and the Nonlinear Mechanics of Distributed Point Defects

Submitted by arash_yavari on Wed, 07/25/2012 - 13:00

research

In this paper we obtain the residual stress field of a nonlinear elastic solid with a spherically-symmetric distribution of point defects. To our best knowledge, this is the first nonlinear solution for point defects since the linear solution of Love in the 1920s.

A new postdoctoral position in the mechanics of glassy/amorphous materials

Submitted by Eran Bouchbinder on Wed, 07/25/2012 - 10:21

non-equilibrium thermodynamics

A new postdoctoral position in the mechanics of glassy/amorphous materials is
available at the Weizmann Institute of Science. The project will focus on
strongly non-linear phenomena such as cavitation, shear-banding and fracture,
with applications to Bulk Metallic Glasses, and will involve advanced

Problems of J-values

Submitted by Young Wook Kim on Wed, 07/25/2012 - 08:51

J-values using cint command

hi, recently i modeled inner part-through crack of a cylinder using ANSYS.

crack line is modeled by SPLIN so this shape is elliptical.

the purpose of this model is calculating a J-values using cint command.

but, i faced a problem that is i don't know how i define the NORM.

in help, NORM is the part of normal direction of crack surface. so, i defined it as NORM,1,3 since

i used cylindrical coordinate system and normal diretion is z-direction.

but, J-vales are divergenced not convergenced. what can i do anymore?

ABAQUS explicit: problem with temperature field output for Extrusion forming

Submitted by nvelluva on Wed, 07/25/2012 - 05:17

research

heat transfer during extrusion

Hi Everyone

Hypoelastic materials: constitutive equations in rate form

Submitted by brunda on Tue, 07/24/2012 - 17:25

constitutive equations

hypoelastic materials

objective stress rate

rate form

Hi,

I want to derive the rate form of the consitutive relation for hypoelastic material:

Jaumann stress rate=L:D

where L is a fourth order modulus tensor and D is the rate of deformation.

Most papers that I have seen begin with this expression. But I would like to know how to arrive at this equation.

Any suggestion?

Thanks

Brunda

Free Computation Cycling Time

Submitted by Parameshwaran … on Tue, 07/24/2012 - 16:44

modelling and simulation

Cluster Computing

National Nanotechnology Infrastructure Network Computation (NNIN/C)
Project at Michigan provides free computation cycling time for a limited
time (July 25, 2012 to Dec. 20, 2012) to support researchers in
Nanotechnology (Nano/Microsystems, Nanomaterials, Multiscale modeling,
etc). To get a free computation account, please go to:

www.lnf.umich.edu/NNIN/Computation/Registration/index.aspx

CM13 - An International Conference on Computational Mechanics - Durham, UK, March 25-27 2013

Submitted by Charles Augarde on Tue, 07/24/2012 - 04:54

conference

ABSTRACT DEADLINE APPROACHING 31st July 2012

Dear Colleagues

We have received a healthy number of abstracts already for CM13 but we invite you to consider submitting one if you have not done so already. The deadline is 31st July 2012 with full papers due October 15th 2012 (so that they can be reviewed). Please visit the conference website for more details, or contact me directly. I hope some of you can join us in England in 2013.