iMechanica - free pre-post processor - Comments

Re:

mm — Wed, 15 Oct 2008 03:36:35 -0400

Very informative, thanks

RE: pre/post-processing software for boundary element

Alejandro A. Ortiz — Tue, 12 Aug 2008 02:26:06 -0400

Generally speaking, a pre/post-processing software should have a template file which can be customized (typically, using a script language) so you tell the software what you want to be printed out in a data file, say for example, node connectivities, material properties, load and constraint data, and in general, all the information that is required by your executable or console program. The next step is to set up the pre-processing information using the pre/post-processing program. For this, you create the geometry, create the mesh, define material, apply loads and constraints, etc. Once this stage is done, you should be able to create the data file directly from the pre/post-processing software according to what you defined in the template file. At this stage, your executable or console program should read that data file to start the calculations. Your executable should also give you an output file containing relevant results to do the post-processing. Typically, the output file will contain, for example, nodal displacement and/or stresses at gauss points. This output file must be readable by the pre/post-processing software so you can visualize your results. At least, that is what GiD does. The following link might be useful for you:

http://gid.cimne.upc.es/support_team/su05.html

and look at "ProblemType tutorial".

Alejandro A. Ortiz

pre/post-processing software for boundary element

zoher82 — Fri, 08 Aug 2008 16:54:22 -0400

hi everybody,

Can anyone explain me how to use a pre/post-processing softoware.

for exemple if i have a FEm Consol Program and i want to see the response of a structure to thermal or mechanical sollicitations.

thank you for answering

Give Me Detail About How To Install ABAQUS V6.6

Bhavin — Thu, 24 Jul 2008 21:22:08 -0400

can give me internet source to free download ABAQUS V6.6 software?and how to install it?I want to do analysis in area of Stress and heat transfer analysis?

thanks for help

Bhavin Patel

I have been using LUSAS for

aliural — Mon, 16 Jun 2008 15:25:14 -0400

I have been using LUSAS for 2 years. It is very easy to learn and use. It has also included main nonlinear material models as Drucker-Prager, Mohr-Coulomb, Tresca, Cracking Concrete etc. I have no idea about ABAQUES.

This webside is much useful,thank you very much

Jun Yu — Mon, 29 Oct 2007 10:47:09 -0400

I just link to the webside and find some useful things to my work ,I am very happy

Openxfem++ Tresca --

Stephane Bordas — Thu, 04 Oct 2007 03:20:15 -0400

Hi again,

If you are able to implement Tresca, then, you can put it into OpenXFEM++, it is straightforward and completely separate from the rest of the code. Thanks, and good luck, Stephane

PS: Please email me, to get the code, there must be a problem on the web site, I have no time to fix it now.

Dr Stephane Bordas

http://people.civil.gla.ac.uk/~bordas

hi Dr.Bordas

prashant sharma — Sat, 29 Sep 2007 13:20:23 -0400

i am unable to download the XFEM++ from the given link, but i am able to see the code used in the extended software . well here von mises stress yield is used for calculation of yield , can u tell me how i can use the tresca yield function for it..

thanks

prashant sharma

OpenXFEM++ crack growth open source

Stephane Bordas — Thu, 27 Sep 2007 03:21:49 -0400

Hi,

http://people.civil.gla.ac.uk/~bordas

you will find a link there to OpenXFEM++. We also have other similar libraries. It's not FEM, it's extended FEM, but the idea should be similar. You want 3D?

stephane .bordas @ gmail . com

Stephane

Dr Stephane Bordas

http://people.civil.gla.ac.uk/~bordas

opensourse crack propagation FEM tool

prashant sharma — Wed, 26 Sep 2007 14:55:33 -0400

hi any one can give some link for open sourse link- crack propagation FEM package like zencrack

thanks

Re: ABAQUS batch

Dan Cojocaru — Fri, 21 Sep 2007 15:03:37 -0400

Yes it is possible. See the script below. Save it to a file , let's say 'igsin.py' and run it with

C:\temp>abaqus cae script=igsin.py

#import igs script
from abaqus import *
from abaqusConstants import *
import part
import sys

#change the next lines as necessary

#path to the igs file
igsFile="C:\\temp\\mypart.igs"
#name of the model where the imported part will be added
modelName="Model-1"
#name of the imported part
partName="myImportedPartName"

if modelName in mdb.models.keys():
myModel=mdb.models[modelName]
else:
myModel=mdb.Model(name=modelName)

#the next two lines open and convert the igs file
#check the documentation for additional parameters to tune up the convertion

acis_file=session.openIges(igsFile)
myPart=myModel.PartFromGeometryFile(name=partName,\
                             geometryFile=acis_file,\
                             dimensionality=THREE_D,\
                             type=DEFORMABLE_BODY)

print "Part %s....imported! :-)"%myPart.name

Abaqus batch

ucchio — Thu, 30 Aug 2007 11:59:36 -0400

I would like to know if it is possible to import an iges file using the abaqus batch interface.

If it is possible, can someone post the command lines needed?

Thank you in advance,

Claudio

Have you looked at Qhull

Jeff Baylor — Mon, 09 Jul 2007 16:04:24 -0400

Have you looked at Qhull yet? It is used by Matlab and Octave (open source Matlab clone) for their computational geometry functions including voronoin. It is open source.

http://www.qhull.org

generating Voronoi diagrams

Matthias Preisig — Mon, 09 Jul 2007 12:59:06 -0400

a very good code for generating delaunay triangulations and voronoi diagrams is Triangle by J. R. Shewchuk

http://www.cs.cmu.edu/~quake/triangle.html

a more comprehensive package for all needs in computational geometry is CGAL:

http://www.cgal.org

A MATLAB function: voronoin( )

Zhijun Zheng — Mon, 09 Jul 2007 00:18:09 -0400

The function voronoin( ) in MATLAB may be beneficial to you. Try it. And good luck!

free pre-post processor

Karma Yonten — Mon, 05 Mar 2007 10:14:11 -0500

Does anyone know of a good free pre and post processor software for finite element analysis? I'm currently using the academic version of GiD. It's not convenient to create a more complex mesh with GiD, and doesn't give a good integration point stress/strain contours.