Blog posts

Plastic deformation in the plates

Submitted by Sedrak on Thu, 03/08/2012 - 17:02

Currently im working on a problem of bending of ideal round plastic plates (Kirkhoff model) for different boundary conditions. Would be pleased to discuss it with interested persons.

Postdoc Positions in Ultrasonics at the Ohio State University

Submitted by Jia Li on Thu, 03/08/2012 - 16:13

Post-doctoral position is available in the area of ultrasonic material characterization and nondestructive evaluation (strong background and experience in ultrasonic
experiment and modeling are required). The position is supported
from research grants. The focus area is ultrasonic study of
nonhomogenous materials like polycrystalline materials, composites and
adhesive bonds. State of the art ultrasonic laboratories
and other characterization facilities are available. More details will
be provided to interested individuals.

Looking For a PhD Position

Submitted by maran on Thu, 03/08/2012 - 13:30

education

I'm a six year experienced engineer in Glass industries and looking for a PhD position in Europ or USA..

Energy release rate of small cracks in hyperelastic materials

Submitted by ErwanVerron on Thu, 03/08/2012 - 08:12

research

This is the preprint of an article that will appear in the International Journal of Non-linear Mechanics

Energy release rate of small cracks in hyperelastic materials by M. Ait-Bachir, W. V. Mars, and E. Verron

Abaqus Low cycle fatigue - Hysteresis Energy Criteria

Submitted by sidd04mech on Thu, 03/08/2012 - 04:38

Hi,

I am trying to do Low cycle fatigue analysis in abaqus, and
according to the Documentation, for bulk material damage initiation and damage
evolution definition, I can use the criteria (and type for Damage evolution) as
"Hysteresis Energy". And have to define 4 material variables C1 to
C4.

But in the abaqus material library (in abaqus-CAE) i could find
all the other criteria but not the "Hysteresis energy". I also tried
to define it in the *.inp file but abaqus could not read it (apparently wasn't
writing it correctly).

How to transfer AutoCAD model to ANSYS? How to model a cyclic load in ANSYS?!?

Submitted by fa_6787 on Wed, 03/07/2012 - 21:43

Hi everybody,

I am trying to model a connection in ANSYS and analyse it under cyclic load (Earthquake Load). first of all I have done my 3D model in Auto CAD but I dont know how to transfer this to ANSYS!!!

Also I have the graph for the cyclic load which is based on number of Cycles (x-axis) and storey drift (y-axis) but I dont know how I am supposed to model this in ANSYS!!!! can anyone help me and guide me through this?! Thank you very much.

PhD position at the University of Glasgow

Submitted by grassl on Wed, 03/07/2012 - 16:55

PhD position at the University of Glasgow on “Modelling of geo-engineered barriers for underground nuclear waste storage”

This project will take place at the School of Engineering of the
University of Glasgow in the UK and will be jointly supervised by Dr
Domenico Gallipoli and Dr Peter Grassl. The project will develop the
simulation tools for predicting the long-term behaviour of
geo-engineered barriers used in the geological (underground) storage of
nuclear waste. A typical geological storage scheme for nuclear waste

UMAT : Gurson-Tvergaard-Needleman model

Submitted by Seagull on Wed, 03/07/2012 - 16:48

I try to program the GTN model in a UMAT with isotropic hardening and anisotropic Hill yield criterion. I just want to know if someone has an example of UMAT dealing with the original GTN model (Von Mises criterion). This example would help me a lot in order to compare my code and perhaps to find my mistakes.

ABAQUS: I can't find the ErrElemMissingSection as defined in the error message of the aborted job.

Submitted by MD FARSID HAQUE on Wed, 03/07/2012 - 08:04

software

ABAQUS/CAE

missing property definitions

ErrElemMissingSection

Hi Guys,

I am facing the following error in the execution of a job in ABAQUS:

'Error in job ModalTest_2: 27 elements have missing property definitions. The elements have been identified in element set ErrElemMissingSection.

Error in job ModalTest_2: SECTION DEFINITIONS ARE MISSING OR INCORRECT FOR THE ELEMENTS INDICATED ABOVE. FURTHER PROCESSING OF THE INPUT FILE IS NOT POSSIBLE UNTIL THIS INPUT ERROR IS FIXED.'