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software of interest to mechanicians

which software for impact/destructive simulation?

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Hi,

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)

 

Thanks!

 

phsieh2005

FEM method for PDE

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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.

 

 

Alok

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

fdzhw@yahoo.com.cn

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.

OpenTURNS

What is OpenTURNS ?

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:

Geometry&FEM connection in Mechanical APDL (ANSYS)

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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.
Mehmet.

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

Pujitha

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.
Giacomo

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  

IOSO Optimization Software video tutorials

logo_ioso_var2_black_text.png                                    logo_color_eng_small.jpg

Dear Colleagues,

boundary element metod software question

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Hi!

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,

 Marat

 

boundary element metod software question

Hi!

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!

Shunlai

 

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 (http://tahoe.ca.sandia.gov/) to download the software is not working. I got the tahoe 1.2 .tgz from sourceforge.net. 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,

Rohith

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

I NEED HELP IN ANSYS ELECRTOMECHANICAL COU[PLING FOR SMART MATERIALS

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

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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. 

Coupled Temperature Displacement Analysis for layered Soild

I am trying to carry out coupled temperature displacement analysis for layered solid in ABAQUS 6.8 but it is not accepting coupled temperature displacement type element for layered solid (Composite). I would like to request for some suggestions/ way out to carry out the same in ABAQUS.

 

Thank you.

 

with regards

Dhaneshwar

What we call Robust Design Optimization (IOSO RDO Application example)

Nowadays there are many technologies that people call Robust Design Optimization. Among them one can encounter for example such popular methods like six-sigma.

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