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•Perform material model calibration

Calling a File inside of the UEL

Hi everybody,

I'm writing a User Difined Element (UEL) for my research.

Would you please let me know if it's possible to call a file (txt, dat, etc) inside of the UEL or not?


    IF (LFLAGS(3)=1) THEN
        OPEN (UNIT = 10, FILE = "AAA.dat", STATUS = "OLD")
        READ (10, *), StiffnessTable
    END IF

Thanks in advance,


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Early Bird gets the...... Discount!

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fire simulation


My aim is simulate the structural response of a plate with pressure applied under fire condition in abaqus

To that extend I know how the temperature variates in time (known T(t) t from 0 too 3600 sec) also I know the material properties and Sy to every temperature.

I thought that the best way to do this is by applying the T(t) as BC in the structure and use coupled temp displacement in one step.

But I don't know if this approach is correct.

Extract natural frequencies in abaqus

Hi all,

 I am new in the blog, so I would like to appologies if this post is already published.

 I am doing a research in vibracion-based health monitoring based in CFRP beams. As a part of my research, I am modeling a composite beam in abaqus and apply transient analysis on it. Before I would like to validate my model with a very simple a easy model for this reason I have elaborated this procedure:

How to implement "steady state dynamic analysis" in abaqus

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Hi all,

Here is what I'm interested to model in Abaqus:

I have a shell model, clampled on the booundaries. I want to excite it in a frequency range of 10 to 100 Hz with 10Hz intervals and I want to report the complex displacement of a particular node set at each frequency.

I read in Abaqus documentation of "Direct-solution steady-state dynamic analysis" that:

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SIMULIA Community Conference adds Academic Poster Session!

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How to get nodes from a list of nodelabel in abaqus

 Hi everyone,

I am a working on a cube in abaqus. I had to remove some nodes from the face node sets. To be specific edge nodes. I have defined a function in such a way that after removing them what I have is a list of node labels. I am scripting in python. Can anyone help me in extracting nodes back from nodelabels? 

Or is there any better way to remove some nodes from nodelist and get the modified nodelist ? 


Curvature effect on nitinol aortic stent

high i am a student doing a project on curvature effect on thoracic stent. I want to curve the nitinol stent in abaqus. I am using RSURFU and doing static analysis. But am not able to curve it. Also when using implicit dynamic analysis with quasi static apllication my KE is high and comparable to IE. So can any body help me. Crimping and expansion is not a problem.


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How to use multiple GPUs in ABAQUS command line?


I am new to abaqus command line and trying to solve massive explicit dynamics and steady dynamics models. I want to use multiple CPUs and GPUs to sole this. I searched on internet and found the syntax as:

c:\Temp> abaqus job=Job-1 cpus=16 gpus=1 input=file1.inp double interactive

Is this syntax correct, especially gpus part? or do I need to write some more command to use GPU, such as type of GPU or something like that? Can someone tell me what "double interactive" in above syntax means?

Any suggestions or ideas on how to simulate a drop test in abaqus?


I am working on a research to simulate a drop test of a package box with ceramic saucer inside. I am not proficient in abaqus so I am looking for some suggestions.

Till now, I created a hollow box with 2 mm thickness to represent it as a cardboard box and a disc for a saucer. I have material properties for cardboard and saucer. Then I assembled the model in abaqus such that saucer is touching box at the bottom; this was initial condition.

Linking Abaqus 6.12-3 + VS 2012 pro+ Intel Compose XE 2013

Hi there,


Recently I had lots of problem with linking ABAQUS and Fortran compiler together. I did all of the things which has been described in forums but none of them worked for me. Finally I found the solution.

I'm using ABAQUS 6.12-3, Visual Studio 2012 Professional and Intel Composer XE Suites 2013. For linking them simply follow these steps:

1- find the file ifortvars.bat and its path.

ABAQUS Reinforced Concrete Beam Model

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Hi All,

I am trying to model a simply supported reinforced concrete beam with longitudinal reinforcement. I am using 8-node solid elements for the concrete, and 2-node truss elements for the longitudinal reinforcement bars. I have embedded the reinforcement bars in the concrete using an Embedded Region constraint. I am then applying a displacement at the midspan (deflection control). I am using the Concrete Damaged Plasticity model for the concrete. My model begins to run but will not converge. Some of the error messages that I get are:

Substructure Generation in ABAQUS


I have created a substructure in Abaqus. As output, I will like to see the substructure matrices (mass, stiffness and damping matrices). However, I'm only able to write the mass and stiffness matrices to an output file (*.mtx).

Does anyone know how to create an output file including both the mass, stiffness and damping matrices of the substructure? Below, I have shown what I have written in the input file (*.inp).

Thanks in advance,



Compatibility: Surface-Based Cohesive Behavior in UEL

Hi all,


I have been trying to model the surface interaction between two blocks of material using surface-based cohesive elements (*cohesive behavior). This works well in ABAQUS CAE (standard) when I set the material properties as "Mechanical, Elastic" so no problem with that.

However, I would now like to use the material properties from a fortran code. To do this, I was planning on defining the elements using *UEL with an overlay to record all the values. Is this compatible with cohesive zone elements? 


Recover wall clock time in Abaqus/Explicit

Dear All,

Does Anybody know how to recover the wall clock time of an Abaqus/explicit analysis? I do not understand why for implicit analyses is easy (log file) while for explicit there is no information.

Thank you,


Rotational Abaqus Direct Cyclic Boundary Condition


I am attempting to model the rotation of a cylindrical bar using Abaqus 6.12 coupled with the direct cylic approach. In my model I have one end of the beam fixed while the other has a kinematic coupling constraint to a reference point that has an applied rotation of 0.1 rad.

Laleh Fatahi's picture

Having Problem for Exporting IGES File from ANSYS

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Hello everybody

Create new ( multiple ) parts from existing (single )part in Abaqus

Hello Everyone,

i am kind of newbie to Abaqus, in learning phase. My question is regarding creating new parts from existing part in abaqus, kind of splitting activity similar to slice feature in ANSYS Designmodeler. As far as my regular activity in Ansys workbench, i require to slice body in designmodeler, to create new volumes, to refine mesh, or to define contacts with different status.have limited access to modeling software, so basically work with simulation software pre processor.


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