Blog posts

Multiple Faculty Openings at Iowa State University

Submitted by Wei Hong on Sat, 09/24/2011 - 16:11

job

tenure-track

Aerospace engineering

CERN scientists 'break the speed of light'

Submitted by Rui He on Sat, 09/24/2011 - 08:43

Scientists said on Thursday they recorded particles travelling faster than light - a finding that could overturn one of Einstein's fundamental laws of the universe.

Antonio Ereditato, spokesman for the international group of researchers, said that measurements taken over three years showed neutrinos pumped from CERN near Geneva to Gran Sasso in Italy had arrived 60 nanoseconds quicker than light would have done.

is there any proper model for the fatigue crack tip stress-strain field?

Submitted by Chen Long on Sat, 09/24/2011 - 02:42

research

dear my friends:

I am a new one in the fatigue crack study. as we all konw, there is a crack resistant near the crack tip before its cracking. HRR model has been well testfied in monotanic crack, so i wonder whether it can be expanded to the cyclic crack situation or not! if yes, so how to describe the stress-strain distribution just nearby the tip? can we define a similar resistant value in the cyclic status?and is the stress redistribution concept right for the stress harden material?

any suggestions would be appreciated!

regards, Long

KIM seeking postdoc for NSF CI TraCS fellowship

Submitted by tadmor on Fri, 09/23/2011 - 19:29

job

molecular dynamics

atomistic simulations

multiscale modeling

interatomic potentials

Dear Colleague:

Filled : postdoctoral position within the Roberval Laboratory at Universite de Technologie de Compiegne, France (filled)

Submitted by breit on Fri, 09/23/2011 - 18:25

job

finite element analysis

design optimization

field transfer

Call for Papers - SIMULIA Customer Conference 2012

Submitted by Twebb83 on Fri, 09/23/2011 - 14:05

The international SIMULIA Customer Conference (SCC2012) will be held May 15-17, 2012 in Providence RI, USA. Abstracts for papers are due November 7, 2011.

All users of SIMULIA products including Abaqus FEA, Multiphysics, Isight and Simulation Lifecycle Management (SLM) are invited to submit an abstract.

Role of entanglements in polymer networks elasticity

Submitted by Mykola Tkachuk on Fri, 09/23/2011 - 09:33

elastomer

elastic network model

Good day, dear colleges.

code for Dual BEM or Fast multipole BEM

Submitted by Serious on Fri, 09/23/2011 - 07:40

research

DBEM

Hi, is anyone who can share the code of DBEM or FMBEM for two-dimensional fracture mechanics. These codes can be used to caculate the SIFs of the at the crack tip.

Thanks!

Displacement control VS. force control in Abaqus

Submitted by mahmood seraji on Fri, 09/23/2011 - 03:16

research

methods of loading

Dear friends,

I have modeled a simply supported beam, using wire and the circle section of 1mm and a length of 110mm. I did two analyses

1) I used the distributed load of 0.2 N/mm (where the beam behaves in
the elastic area) and got the maximum displacement (at center).

2) I used the obtained max displacement (from first analysis) as a
displacement control. the results of the reaction forces are supposed to
like the distributed load at first analysis, but it is much lower.