Blog posts

Postdoctoral position at SISSA-International School for Advanced Studies

Submitted by Giovanni Noselli on Sun, 03/08/2015 - 11:58

A postdoctoral position is open at SISSA (http://www.sissa.it/) within the research group SISSA-mathLab (http://mathlab.sissa.it/). Prof. Antonio DeSimone (PI of the ERC Advanced Grant 340685-MicroMotility) is seeking a postdoctoral researcher to carry out an experimental activity focused on the study of low Reynolds number micro-swimmers. The postdoctoral researcher is expected to collaborate with other scientists of the group. A suitable candidate should have a strong background as an experimentalist.

Plane stress formulation of hyperelastic material

Submitted by afallah on Sat, 03/07/2015 - 07:38

I'm looking for good refrences for plane stress formluation of transvesrly isotropic hyperelastic materials (imcompressible). I'm wondering if someone help me and introduce some usefull material about it.

Kind Regards

Ali

An interesting paper

Submitted by D.Rittel on Fri, 03/06/2015 - 10:21

I came across this very instructive article, so I decided to share it here.

Enjoy!

ABAQUS - Input file - Definition of nonlinear spring (SPRINGA)

Submitted by Ste.Cra on Thu, 03/05/2015 - 10:05

nonlinear spring input file abaqus

Hello all,

I am currently working at a structural dynamic problem with Abaqus/Explicit. The work involves an impact and in this context the goal is to connect two rigid bodies (with their constraint, mass and velocity field) to each other with a NONLINEAR SPRING; the element used is the so called SPRINGA element.

Using File-->Import-->Model I have imported the input file, which I have previously modified in the following way:

*Spring, elset=SPRING-spring, nonlinear

0,0

1000,0.002481

2000,0.004963

Postdoctoral Position Opening at Stanford University

Submitted by Cai Wei on Thu, 03/05/2015 - 02:30

job

dislocation dynamics

# Finite Element modeling

Semiconductors

Prof. Wei Cai at the Mechanical Engineering Department of Stanford University is seeking a postdoctoral researcher to lead a project on the modeling of dislocations in strained semiconductor structures. The major task of this project is the development of an interface between the Dislocation Dynamics program (ParaDiS) with a general purpose Finite Element Method (FEM) program (such as ABAQUS). Molecular dynamics simulations may be required to provide physical input to the Dislocation Dynamics model.

Call for abstracts ICCM2015, Auckland, New Zealand: computational limit and shakedown analysis

Submitted by LeCanh on Wed, 03/04/2015 - 16:24

conference

Dear Colleagues,

We are inviting you to submit abstracts on ICCM2015, Auckland, New Zealand:

MS-008 Computational Limit and Shakedown Analysis.

We are looking forward to your presentations at our symposium.

Best regards,

Canh Le

rate-state dependent friction in ANSYS

Submitted by Mike Ciavarella on Wed, 03/04/2015 - 16:19

rate-state dependent friction

Dear collegues

a quick question:- I am playing with continuum models of Contact (Hertz, Westergaard and so on) and friction laws. However, I prefer for my students to use ANSYS FEM code. In Ansys there is standard Coulomb, rate-dependence but not rate-state (unless one codes some user subroutines). See

https://www.sharcnet.ca/Software/Fluent14/help/ans_ctec/Hlp_ctec_realke…

Enforcing tie constraint

Submitted by bfa on Wed, 03/04/2015 - 15:02

Dear iMechanica users,

I have a problem which I would appreciate any input on how to solve. I have an indentation problem, in which I indent a cell with an enclosing membrane. Therefore, I create contact between the (rigid) indenter and membrane, and tie the membrane and intracellular solid elements together. The model is an axisymmetric model, with CAX3 and CAX4R making up the intracellular axisymmetric solid elements and SAX1 the axisymmetric membrane.

Simpleware Australia Workshops

Submitted by Simpleware on Wed, 03/04/2015 - 14:52

Simpleware will be running a series of free workshops in Perth, Sydney and Melbourne from March 23rd to April 1st 2015

These will include an overview of using the software to visualise, analyse, process and generate models from 3D image data (MRI, CT, micro-CT...). Learn how to obtain very high quality models from image data, how to integrate CAD objects with images, how to calculate effective material properties using Finite Element-based homogenisation techniques, and about exporting robust FE and CFD meshes for simulation in other software.