User login

You are here


software of interest to mechanicians

Dincoz's picture

Element delatation for Severe Plastic Deformation (SPD) process

Dear all,

I am using Abaqus/explicite. My material definition is elasto plastic with stress strain values up to strain of 15!. After borthering tries now I think if I can set "Shear Failure Criteria Element Deletation option", it is possible to avoid this error. But I cannot find this option. Could someone guide me what exactly should I do in order to add distorted element deletation option and how? (an step-by-step tutorial will be approciate)

More Explanation about process:

How to model the boat sailing on the water surface with springs/ connectors?

Choose a channel featured in the header of iMechanica: 
Free Tags: 

Hi, every body,

How can we define "Bending Stiffness" in ABAQUS software

Hi guys,

I'm trying to simulate trsmition lines with and without dampers.

Who knows how can I define "Bending Stiffness" for a cable or beam?

thanks in advance 

bug on deactivate the crack propagation capability?

Choose a channel featured in the header of iMechanica: 

Could anyone please help on how to deactivate the crack propagation capability?


Following section 10.7.1 in the User Guide of 6.13, the crack propagation capability can be deactivated in some step. But I tried it in a very simple example through CAE and input file, it does not work.


Particularly, the problems are 


How to deform an existing mesh from CT measurements?

Hi all,

I would like to know if someone has a trick to deform a mesh generated in Abaqus thanks to Computer Tomography measurements ? 

The file I received from CT is a .stl.

Do you know an open source software that can compute deviations between point clouds?

Thanks in advance for your support :-D

Wenbin Yu's picture

Share/run engineering simulation codes in the cloud

I know the mechanics community have many codes to share. If you have developed engineering software including legacy Windows codes or linux codes, you can easily publish your code in the cloud and have it run on any devices including smart phones through The codes could be simple codes you wrote for your dissertation or comprehensive commerical package like ABAQUS or ANSYS. You don't have to change your code, no source codes are needed. All you need to do is to upload your executable through a very straight forward way which only takes a few minutes.

abaqus restart problem

Hi all,

    I've been facing a very strange problem now when I'm using abaqus to finish RVE multiscaling simulation: so far, what I've done is successfully  linking fortran and abaqus to run the whole calculation. At first, I met a small problem--- overwrite the old files(y/n)?---which has been solved by adding a "abaqus_v6.env" file whose content is as follows in the abaqus working direction:


Modeling reinforced concrete in ABAQUS

Choose a channel featured in the header of iMechanica: 
Free Tags: 

Hi everyone, 

I am a master student working on my master thesis using ABAQUS. I am modeling an experiment, but the problem is that my results from ABAQUS do not agree with the experimental results. Can you help me to check if I have done any mistakes? 

ANSYS cyclic variable amplitude displacement

Choose a channel featured in the header of iMechanica: 

Hi everyone... I've been working on a research study of Steel moment resisting frames. It includes finite element analysis of the frame in ANSYS apdl software. However, I'm facing a problem with the application of loads. The basic loading history for a single specimen testing program in the multiple step test in which loading history consists of stepwise increasing deformation cycles as shown in the attached file. In the basic loading history, the cycles shall be symmetric in peak deformations.

I need to apply the aforesaid type of loading on a particular nodes.

How to define a specific time active force curve in Abaqus

I was trying to create a load curve associated with time, such as a sine curve at the beginning, and then the force vanishes. Therefore, I cannot just use the periodic curve directly. I tried to input two loads periodic sine curves(same step) so that at a later time like t_0 the total load is cancelled. But it seems the displacement reaction is kind of weird. Is this the right way to do this kind of load-time curve, or is there another better way? Thanks a lot.


Pocivavsek's picture

strain/stress in local material coordinates

Choose a channel featured in the header of iMechanica: 
Free Tags: 

We are doing simulations of simple bilayer composites which undergo extensive buckling and post-buckling instabilities. The simulation is being done with ABAQUS explicit to capture the highly non-linear geometries. Everything works very well, however to compare with our analytical theory we need the Green strain at each element. ABAQUS for solid elements gives only the NE or LE which is projected onto the global coordinate system.

mmalekan's picture

How to update nodal values of an existing Abaqus odb file?

Dear All:

I want to update some nodal values of an existing Abaqus odb file using pyhton script. The problem is I don't know what kind of commands should I use in order to do this task?

Another question is how to delete an existing FieldOutput variable from odb file. I know by using add "addData" command, we can add user-defined field to the odb file, but how to delete an existing field output?

Thanks for your help,


ABAQUS 6.14 CAE "pre.exe" error

Choose a channel featured in the header of iMechanica: 
Free Tags: 

I am planning to analyze my Senior Design Project by statically on Abaqus, since I am just an undergraduate student, I am also planning to do this on my new laptop that have;

8+4 GB DDR3 800MHz RAM

Intel i7 4700HQ 3300 MHz Processor

nVidia GeForce GT 750M Graphics

I got Abaqus 6.14 from my school, I tried to make a simple example to test the program is running with no error, finally I have an error with this message;

ysfouad's picture

Direct Dynamic Analysis Method (DDAM) of the US Navy... Not found in Abaqus 6.14!!

I worked with Direct Dynamic Analysis Method (DDAM) of the US Navy with Abaqus in 2007, but when I revisit it again in 6.14 version I didn't find it and it is not in the documentation also. Is it removed from Abaqus? and  why? In ship building industry, they use it heavily till now.

Please, find the attached file about the method from a Simulia document in 2007

Simpleware Webinars: Intro to Animations Tools and New Physics Modules - February 11th and 18th

(re-arranged from January 14th and 21st)

We're running two webinars in February on the latest additions to our software ScanIP's 3D image processing, visualisation and model generation capabilities. The webinars are ideal for existing users and those wanting to learn more about creating models from 3D images.

Introduction to the new ScanIP Animations Tool on February 11th (8am/5pm GMT)


Choose a channel featured in the header of iMechanica: 


Nice to meet you,

My name is Thuan, Student in Korea.

I am sudying about composite plate.

Could you send me Matlab code of composite plate?

My email is


Asking for help about fixing an error while creating a model and simulating it using "SimMechanics"

Choose a channel featured in the header of iMechanica: 

Hello , everyone ! I really need your help ! 

I've created a model for a 6DOF (RRRPRR) robot but I keep getting an error message about the "Revolute4" joint . 

Can anyone help me fixing it as soon as possible , please ? Thanks in advance . 

Ansys Workbench

Choose a channel featured in the header of iMechanica: 
Free Tags: 

Ansys Workbench 

I work with both Beam188 elements and

Link180 elements and would like to be joint them together.

Is this even possible, How can I achieve this

How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?

Choose a channel featured in the header of iMechanica: 

How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?

hello engineers

i need help about concrete damaged plasticity

fo example :

if Compressive stress (Fu)= 51.2 MPa

and tension stress (σ t)=0.3 x 51.2^(2/3)=4.136

1)why (σ t) is 2.36 in picture(uploaded)?

2)what is tension strain ? and how? i cant understand.

i cant obtain εt = total tensile strain.

how obtain εcr ?

please help


Equivalent Conwep pressure in abaqus

Choose a channel featured in the header of iMechanica: 
Free Tags: 


I modeled a sandwich panel under blast loading with conwep function in abaqus,

My problem is that I want to read the equivalent pressure due to amount of TNT I assembled in abaqus,

Do you have any idea how I can get it?

I know that there is an equation for calculating the pick pressure due to conwep loading but I want to read that in abaqus.

What is the appropriate field output or history output for pressure due to conwep loading?



Free Simpleware ScanIP 7.0 Webinar - Dec 11th 2014

8am-9am GMT or 5pm-6pm GMT


The latest release of Simpleware’s 3D image processing and model generation software includes new features designed to enhance visualisation, analysis and segmentation of 3D image data. Features include a particles analyser, centreline tools and new physics modules for calculating effective material properties using homogenisation techniques. 

Simpleware Version 7.0 now available

We're delighted to announce the Version 7.0 release of our 3D image processing, analysis and model generation software. The release comes with a wide range of new features including:

New Animations - generate animations from within the ScanIP interface - explore your data and create videos to communicate work to colleagues, with options for 'fly-throughs' available.

how to calculate dispersion relation with ABAQUS ?

Choose a channel featured in the header of iMechanica: 
Free Tags: 

  I wanna get the dispersion relation of acoustic crystals in ABAQUS, so far as I know, the frequencies can be obtained by applying different wave vectors in the IBZ, but I dont know how to opperate in ABAQUS, in what way can we simulate the wave vectors (or the cooresponding wave length) . By applying force or displacement, or acceleration ?

 Attacthed, should I model the whole structure or just the 1st BZ? If the 1st BZ is employed, should the periodic semmetric B.C. be considered in my model?

Any suggestion is appreciated! 


Subscribe to RSS - software

Recent comments

More comments


Subscribe to Syndicate