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solat.noruzi's picture

Johnson Cook failure model

Hi

can Anyone help me to find johnson-cook failure model damage parameters(d1, d2, d3, d4) for Advanced hgih strength steels like DP and TRIP?

thanks

babakp's picture

Abaqus

Hi everybody

I'm babak, and work with Abaqus.

that's so good too be up to date with Abaqus.

Regards.

help on ansys workbench with composite material

HI

I want to know how can I model a layered composite material(e.g. FRP or GRP) in ansys work bench 11? how can i define the material?

Abaqus SE problem

Just attended a FEMA introduction course put on by my provincial engineering assoc.  We all received a copy of Abaqus Student Edition.

When I install the program on my Toshiba Windows Vista laptop the installation completes but when I start the program and try to draw a part instead of getting a blue grid I get a second white drawing sheet overlaying the first.I have tried numerous installs and have all the latest Vista upgrades.  My copy of the DVD is good because the program works on my desktop computer. 

Ansys - Concrete nonlinear beam

Hello,

I have to model with the Ansys software a beam in concrete material. It must be non linear.

In materials properties, I can choose Materials models - Structural - nonlinear - inelastic - non metal plasticity - concrete.

I put the Elastic Modulus, the Poisson´ratio, the uniaxial cracking stress and the uniaxial crushing stress. But I don´t know how I can enter the values of the strain at fc (compressive cylinder strength) and the value of the fracture energy.

ABAQUS/CAE plots values with discontinuous edges/nodes

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Discontinuous plot in ABAQUS/CAE

The plot is showing a value typically obtained at the integrations points (in this case a single integration point).

Normally you would make a plot like this by taking the mean value of the surrounding elements to each node, then making a interpolated plot like this. However, it is obvious this is not the case around the red node, as it has several different values in the same node.

Discontinuous plot in ABAQUS/CAE

The plot is showing a value typically obtained at the integrations points (in this case a single integration point).

Normally you would make a plot like this by taking the mean value of the surrounding elements to each node, then making a interpolated plot like this. However, it is obvious this is not the case around the red node, as it has several different values in the same node. This behaviour happens quite often for me in ABAQUS/CAE, and it is quite annoying as the strange looking plot makes the results seem less trustworth.

Taxonomy upgrade extras: 

Abaqus CAE

I intend to create a
composite model, containing a cylindrical fiber surrounded by a cube,
by Abaqus CAE v 6.7-1. I create
two separet parts, one for the cube and the other one for the cylinder. Then, I
cut the cube by the fiber; the third part (lets say the cut part) is created
automatically. Now, I need to mesh the parts and merge them. 

Loading X, Y, and strain data from multiple files in Tecplot 360

Dear All

 

I am using tecplot to visualize my data. Now I came across a problem as I have three files (created using Matlab). Each file is having a big matrix having data. One file is having X coordiates, second one is having Y coordinates and third one is having the strain data of these two coordinates. I like to import and plot contour using this data. It will be nice if some one can guide me in this matter.

 

Regards

 

 

Editing abaqus inp file using matlab

Dear All

I'm trying to eidt abaqus inp file using matlab, without opening the editor/debugger. Any help would be appreciated.

Deactivate Solidworks2008 License and Transfering

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Hello all friends here:
      I want to ask a question:
"How to deactivate solidworks2008 license in one PC and then transfer to another PC? Are there any instruction I could follow?"
      If some friends know how to do this, could you please do me a favor?
      Highly appreciate.
Regards.
Henry.

mohamad ebrahimniya's picture

weld simulation

hi every body

nice to meet all of u

i am a metallurgical engineering. and recently i am trying welding residual stress simulation using abaqus .

i
have some problem .i think i should set a thermal history for the material
witch is welded in simulation. i want to know how can i set a temperature
dependant properties like tensile stress or  yield stress and ...

Alejandro Ortiz-Bernardin's picture

Compiling and Building TAUCS a library of sparse linear solvers

I would like to share the following information to all the iMechanica users interested in using TAUCS a library of sparse linear solvers. TAUCS is among the most used libraries of sparse linear solvers and, to my knowledge, its closest equivalent library is SuperLU. For your reference, TAUCS is used in the commercial software Mathematica by Wolfram Research. Its source code can be downloaded from

http://www.tau.ac.il/~stoledo/taucs

Regarding ABAQUS installation

Can any body help me regarding abaqus v6.7-3 installation. I am facing problem while installing the abaqus product. It asks license server 1. As I enter there 27000@host ID a massage comes that

"there was a problem constructing the value for the abaquslm_license_file parameter to be entered in to your abaqus_v6.env file. Please enter the value for this variable exactly as it should apear in the environment file"

Plz help me regarding this problem

 

MERGING Of TWOELEMENT

DEAR,SIR HOW CAN I MERGING (NODE)OF A PLATE ELEMENT (SHELL 99)AND A BEAM ELEMENT IN ANSYS SOFTWARE.

pragtic's picture

op2 from MSC Marc?

Dear iMechanicians,

I wonder if anybody knows how to get an op2 file (MSC.Nastran) from MSC.Marc. Is something like that possible? Or do you know some available converter? Potentially, fil or odb file from ABAQUS or rst file from ANSYS could help as well. But I would expect there some way within the MSC product family...

Thanks a lot for any idea.

Jan Papuga

how to define cyclic load using abaqus

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hello everybody:

i am trying to do a project on load controlled cyclic test. By using the Sin wave, i want to define the load.

If i want to define the load range to be 100 to 1000 how can i define the amplitude?

Also, as come to the platic deformation, do i need to give any criterion or anything particular?

thanks

anyone has some idear can you send to xiaojiao_yu@brown.edu?

VUMAT and ALE in ABAQUS

Hi all,

     Here I encoutered a error in ABAQUS when I include ALE with VUMAT. When ALE was not included with VUMAT, my job can work well while with the combination of VUMAT and ALE, the job cann't work any more due to a "Signal 8" error. And if I use a built-in material model and at the same time ALE, a job can work. Furthermore, element failure is considered in all of the cases.

    Anyone can give some suggetion? Thanks in advance!

Xinke

ALE in ABAQUS and LSDYNA

Hi all,

     Can anyone give a description on the diffrence of ALE in ABAQUS and LSDYNA? And also the difference between r-adaptivity and ALE in ABAQUS. It seems ALE in ABAQUS means the same with r-adaptivity in LSDYNA while “ALE” means diffrently in the two codes.

      Thanks a lot!

Shunlai.Zang's picture

When and where the stress objective rates are used in ABAQUS software?

Hi everyone,

    I have a question about the objectivity tensor in ABAQUS software. Below is my question.   

What is the best software

I see that people talk a lot about ANSYS over here and that is the software that I use during my works at university. However, when I read some papers or attend some conferences I hear about other finite element programs such as ABACUS and NASTRAN. Besides that I've also seen other open-source codes such as SALOME, Code-Aster, etc...

What do you think is the best software to make finite element analisys, or if it's difficult to say wich one is best, what are the weak and strong points of each software? 

Abaqus/Explicit VUMAT tensor components ordering

Hello everyone,

 

I am coding a VUMAT for Abaqus/Explicit. I was wondering if the tensor components ordering was ALWAYS different from the one used in ABAQUS/Implicit, or if the special ordering was valid only for the C3D8R element.

abaqus viscoelastic example

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Hi, has anyone tried the bushing example from abaqus' problems manual? The full name of the section is: transient loading of a viscoelastic bushing. The job is aborted due to some unknown set. Thanks.

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