Kewei Li's picture

SIMULIA announces new features in Abaqus 6.10

For those of you looking for FSI simulation on Abaqus platform, recently Simulia has announced the new features in release 6.10, which introduces the capability for performing Computational Fluid Dynamics (CFD) simulation.
So it enables users to perform coupled physics simulations with
Abaqus/Standard and Abaqus/Explicit, such as fluid-structure
interaction between human tissue, a medical device, and fluid flow, more information:


msliitr's picture

Abaqus software....... Acoustic-structural interaction

how to take interaction for acoustic -structural interaction in Abaqus software...  I am going to do frequency analysis, plz help 

How to analyze a "RepRap" design (static and vibrational)?


I'm embarking on a project to build a modified copy of a DIY 3D printer.  See to get a rough idea.  In my case, I have my own lathe and milling machine, so I can fabricate more substantial components, e.g., by machining aluminum.  I also have larger stepper motors, some 3/8" precision rod and linear bearings that I can use. 

 The goal is to design a 3D gantry that will sweep roughly an 8" cube and mount alternate tool heads, e.g., a lightweight  plastic extruder, as well as heavier and higher vibration machining heads (~Dremel motor).  I would like to design the gantry to minimize static and vibrational deflection, while minimizing weight.

which software for impact/destructive simulation?


I am evaluating a couple of software packages for impact and destructive testing simulation.

What are the strength and weakness of the following packages in terms of explicit solver capability for impact/destructive?

NX Nastran non-linear (with explicit solver)

NEi Nastran explicit

ANSYS explicit solver (new in ANSYS 12)





FEM method for PDE

Hi all,


I want to solve one second order nonlinear partial differential equation. Please see attachment for PDE. 

any FEM solver is avilable to solve this PDE.


thanks in advance.




Stiffness matrix from ANSYS

Hi All,

Structural thermal analysis in ANSYS

How can we perform first structural and then thermal analysis in ANSYS (version 12) ? All the examples show the sequence the other way. I can't go for Direct coupled method as the materials are elastic-plastic (plasticity is not supported by direct coupling elements).

anyone using mupad & matlab

Hi all!

I'm using Matlab and mupad  in my research .I have managed to plot a few curves using mupad, a powerful symbol computation soft. Since it is theory solution, I want to add the experimental curves to compare the goodness.But i don't how to make the two softwares work cooperated. 

Any suggestions will be appreciate.

(Forgive my poor English^_^) 

haiwei zhang

analysis buckling of FGM cylindrical shell with abaqus

i am analyzing of fgm cylindrical shell that chang property in the thickness.

i want use abaqus subrotine or other sutable sofware.

can you help me?

Laurent Champaney's picture

OpenTURNS: Open source initiative to Treat Uncertainties, Risks’N Statistics

For those who work in the field of uncertain mechanics, please have a look at OpenTURNS. Wrappers to link your favorite code are easy to built.


What is OpenTURNS ?

OpenTURNS is an Open source initiative to Treat Uncertainties, Risks’NStatistics in a structured industrial approach.

Webinar on AxSTREAM 3.0: Design of Multispool Axial Compressor. From Specification to 3D Blade Design

On May 27, 2010, at 10 a.m. and 4 p.m. EST SoftInWay will hold free webinar "AxSTREAM 3.0: Design of Multispool Axial Compressor. From Specification to 3D Blade Design".

In the course of the 1-hour online presentation, the SoftInWay team will showcase the new features of AxSTREAM 3.0 for multispool compressors, namely:

1.  Ability to assess multiple criteria to choose the optimal flow path design.
2.  Flow path geometry adjustment according to designer's goals (using manual and S1 adjustment and spline).
3.  Simulation of flow path to produce the required design including ducts, heat exchanger, pressure valves etc.
4.  1D/2D calculation and optimization of flow path shape.

Geometry&FEM connection in Mechanical APDL (ANSYS)

Hello everbody,

I'm mechanical engineer and working as FEA Engineer in GATES. I have
been using ANSYS for 5 years and I want to ask a question about new
version of ANSYS.

I use ANSYS Mechanical 12.1. I connect "geometry" and "setup" to
Mechanical APDL box in "project schematic". Then when I open Mec. APDL, I
can see the cad model (areas, lines, volumes) and FEM (nodes, elements)
but they aren't connected to each other. is there any way to connect
solid model to finite element model?

Best Regards.

hydroplaning simulation

Hello all,

I want to model hydroplaning problem in abaqus. how to simulate water component in between tire and a pavement in abaqus.

I want to use either Coupled-Eulerian-Lagrangian algorithm or Aribitrary-Lagrangian-Eulerian algorithm at the contact patch but i could find any one of these features in abaqus.

Please tell me in detail, if any one has done this problem in abaqus.

Thanks a lot


Which program? ABAQUS, Comsol or Ansys

Hi all,

I am a PhD student at the first months. I have to choose a finite element software to study impact effect on biological soft tissues. After some web researches the softwares which seem to be more suitable are ABAQUS, Comsol Multiphisics and Ansys.
My intention is to develop an user defined material model considering the material as anisotropic porous-visco-elastic.
I would appreciate some suggestions/opinion. I am specially interested in dynamical simulations.

Running python script through matlab

Dear Friends , 

                  I am using an optimisation algorithm in matlab.I need to start abaqus from Matlab ( Using abaqus job=jobname), later i want to run a python code to extract some history outputs and feed into matlab. The process involves many iterations . Can anybody tell me how i can run the python script from Matlab ?.

 Thanks and Best Regards  

IOSOnier's picture

IOSO Optimization Software video tutorials

logo_ioso_var2_black_text.png                                    logo_color_eng_small.jpg

Dear Colleagues,

boundary element metod software question


I have written the program in C++ which is based on one of BEM (Method
of fictitious loadings) . I know there are a lot of open libraries of
functions for programming for example openCV or OpenFEM. I could not
find Open Source library for BEM. Please if you know them, give links.

Thanks and Regards,



boundary element metod software question


I have written the program in C++ which is based on one of BEM (Method of fictitious loadings) . I know there are a lot of open libraries of functions for programming for example openCV or OpenFEM. I could not find Open Source library for BEM. Please if you know them, give links.

Question on the visualization softwares of texture.

Hi everyone,

I want to know if there are some opensource softwares to transfer the x-ray raw data to representative discrete pole figure data by Euler angles ? Now I know how to calculate ODF from x-ray raw data with the help of "Mtex". But I dont know how to get representative discrete pole figure data by Euler angles, which is used for CP numerical simulation, from ODF.

Thank you very much!



TAHOE open source FEM code

Hi I hope some users are working on the open source FEM code TAHOE.  The link from sandia National Laboratories ( to download the software is not working. I got the tahoe 1.2 .tgz from But I am unable to create the executable in linux as it is displaying some error. If any one has compiled executable I kindly request you to post it.

 Thanks and Regards,


Using Fortran compiler pgf90 with ABAQUS-6.9

A problem we are trying to solve in ABAQUS-6.9 involves user defined Fortran subroutine to be compiled by ABAQUS. The default compiler used by ABAQUS is ifort, but what we have is pgf90. Is it possible to make ABAQUS use pgf90 compiler instead of the default ifort ? How?


Thank you

Vaibhav Yadav

What type ANSYS error this is........

In ANSYS Gives following Error......
Error...."Use of the M switch is no longer recommended for normal ANSYS use. ANSYS now dyanamically allocates memory as needed. Only use the -M switch if you are certain that you need to do so".and suddenly ANSYS window close automatically.....

 please give the suggestions

designing a diaphragm

I am designing a diaphragm for shock tube, I need formulation to calculate the thickness of the diaphragm for rupture pressure, I intend to use thin aluminium foil as a diaphragm. Can I use thin-wall theory? σ=pr/t


Hi,I'm new to ANSYS. i'm working on project of active vibration control using piezoelectric patches using ANSYS . 

But i'm finding it difficult in modeling of piezoelectric  actuators and the input data required for it(VOLTAGE AND MATRIX).

Can any1 help me?i will be thankful

abaqus help

i m trying to do thermal analysis of rapid manufacturing process called LENS in abaqus(64-bit). Based on thermal results(thermal odb), i m doing a stress analysis. In order to complete a 90 step analysis along with DFLUX subroutine using quadritic (DC3D20) elements (approx 30000 elements), it takes nearly 30 hours(intel core i-7 processor and 6Gb of RAM) and more than 7 days to complete stress analysis. 13-14% of the CPU usage is observed duing stress analysis. is there any way to enhance the performance?? because its using only 13% of CPU though i have 7 processors. 

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