Skip to main content

Blog posts

Electromechanical instability of large deformation in dielectric elastomers

Submitted by Zhigang Suo on

I attach the slides of a presentation at the ASME meeting.  The talk was based on several recent papers on soft active materials (SAMs).  To give an uncluttered picture of the pull-in instability, I have removed all discussion on the Maxwell stress.   As you can see, the problem can be studied without ever mentioning this troublesome notion.

ABAQUS infinte elements

Submitted by Highlander on

Dear Colleague,

I'm Bosnian student and i want to use in
the ABAQUS infinite elements for the 3D model. Model is very simple, 3D box
and load acting in the middle of the model. Around loading surface I'm
using C3D8 elements and under i would like to use CIN3D8 elements. I
used to model box and
infinity as two separate parts and i tied this together in assembly mode. In
input file i changed just elements type of infinity part in to the CIN3D8
elements. But when i run the analysis i always get the error like:

Wing Kam Liu won the 2007 Robert Henry Thurston Lecture Award

Submitted by Anonymous (not verified) on

At the 2007 ASME Congress, in Seattle, Professor Wing Kam Liu won the 2007 Robert Henry Thurston Lecture Award.  Wing Kam was a past chair of the Applied Mechanics Division, and has made seminal contributions in the field of computational mechanics.

Simpleware and COMSOL Announce Partnership

Submitted by Simpleware on

Simpleware Ltd. and COMSOL Inc. announced at the COMSOL Users Conference 2007 in Grenoble a partnership agreement to provide an export interface from Simpleware's world-leading 3D image-based meshing software +ScanFE™ to COMSOL Multiphysics® 3.4, the industry's foremost multiphysics simulation environment. The +ScanFE interface enables COMSOL users to directly import high-quality meshes generated from MRI, CT, and MicroCT scan data into COMSOL Multiphysics 3.4 for modelling and simulation without requiring re-meshing or pre-processing.

cracking analyses in a bended sandwich beam

Submitted by Ilias I. Tourl… on

I'm studying cracking analyses in a three point loaded specimen of a composed beam.I'm using ANSYS and i want to create codes for estimation of J integral and energy release rate in the vicinity of crack tip.After that i'll calculate the stresses and strains fields,and then i can compare the equivalent fields i retrived using CTOD  and K(I,II,III) factors (according to ANSYS algorithm).

My problem is that I'd like to find a relationship between the above mentioned quantities(J,G)  with K(I,II,III)factors.