User login

You are here

ABAQUS

How can i simulate failure and damage progressive of composite materials using abaqus

Free Tags: 

Hello, 

I am new in using abaqus, please can any one help me with tutorials, book or anything that guide me on how to simulate failure and damage progressive in composite materials using abaqus.

Thanks you all 

How can i simulate failure and damage progressive in composite materilas using abaqus

I am new in using abaqus, please can any one help me with tutorials, book or anything that guide me on how to simulate failure and damage progressive in composite materials using abaqus.

Thanks you all 

Rolling Ball

Hi,

 Please refer to the figure given below. I want model this problem using ABAQUS.

 

Abaqus Max Principal vs Max Principal (Abs) values

Hi every one,

                   Does Any one know the difference between Max. Principal values and Max.Principal(Abs) values in Abaqus ? I searched from there manual..but they have not mentioned in there manual too..could you please let me know the difference between those two parameters? Thank you very much.

Modelling Rigid Diaphragm in ABAQUS

Choose a channel featured in the header of iMechanica: 

Hi Everyone 

Nodal stress and strain history output from Abaqus

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

Hi everyone,

I am trying to get the history output of
strain and stress tensor components at a node. However after analysis is
finished no such data are saved in the result section. I think Abaqus
only gives the stress and strain for elements and not at nodes. Any help
would be highly appreciated. Please consider that I am a new abaqus
use.

Thank you in advance

Modeling associative Tresca plasticity in ABAQUS?

Hi

I have a simple question. How could I model associative Tresca plasticity in ABAQUS?

 I use Property module: material editor: Mechanical:Plasticity:Mohr Coulomb Plasticity

I know that In the case (friction angle=0) of  the Mohr-Coulomb model reduces to the pressure-independent Tresca model with a perfectly hexagonal deviatoric section. 

Applying Periodic Boundary Conditions(PBC) in Abaqus

Hi all,

     I am looking for some reference on procedures for applying  PBC in  abaqus? I coud find some journal articles for the equation, but I am unaware of applying this into Abaqus under displacement laoding conditions..

any help in this regard would be appreciated greatly..

 

Thanks,

Bernad 

Postdoctoral position in computational solid mechanics

Job Summary:
The postdoctoral research associate is expected to
provide research support within the frame of a multi-year engineering
research project undertaken by faculty from the departments of
Mechanical Engineering and Applied Math and Sciences at Khalifa
University. Limited teaching or other academic duties may be assigned to
the successful candidate under the supervision of the Advisor as
required by the University.
The successful candidate will be

Properties of Polycarbonate in Abaqus

I m doing Simulation of Impact of projectile on Polycarbonate plate , Can any one suggest what theory i used to design the Material in Abaqus CAE , 

ABAQUS CEL and acoustics problem

Hello everyone!

 I am trying to complete 2 separate analyses which i would love to get some advice on.

Stiffness Matrix (AMATRX) with complex numbers in UEL

Hi everybody,

I'm working on UEL. The stiffness matrix (AMATRX) which I have
defined is consisting of complex numbers (real and imaginary part).

When I'm running it I'm getting this error message:

Abaqus Error: The executable standard.exe aborted with system
error code 1073741819. Please check the .dat, .msg and .sta files for
error messages if the files exist. ...

SIMULIA's picture

SIMULIA Goes Social!

SIMULIA is more social than ever before, and the lines of communication are wide open! Join in the fun, tell your friends, and chat with us whenever/wherever! As they say, "The phone rings both ways," the same sentiment applies for social media. We want to hear from you! What do you want to see? What do you like? What do you want more of? Tell us!

We look forward to hearing from you!

https://www.facebook.com/3DSSIMULIA

FSI issue in abaqus co-simulation: misaligned nodes

Choose a channel featured in the header of iMechanica: 

Hi everyone,

 I am performing FSI simulation under abaqus.

The simulation consists in a porous solid (elastic isotrope and homogeneous under Abaqus/explicit) filled by a non newtonian (viscous fluid under Abaqus/CFD). The whole is contained in a cubic shell in order to apply proper boundary condition.

The cube is pinned on one face and undergoes a compression displacement on the opposite face. I have defined an interaction condition between the solid surface and the fluid model surface so Abaqus can exchange information during Explicit and CFD simulation.

Questions about UEL

Hi everybody,

I have a UEL for truss element (T3D2). I'm calling and reading some .dat files inside of the UEL. I'm just reading these files inside of the UEL without doing anything to them or with them (It's just a test case). Here is an example:

 

      OPEN(101, file="C:\Users\ak1070\Desktop\UMAT-UEL-UELMAT\UEL TEST\V1.dat", status='old',form='formatted',&
                    &action='read',position='rewind')  
      READ(101,*) AEVectors(1,:)      
      CLOSE(101)

      .

      .

      .

Abaqus 2d contact model not working

Normal
0
21
false
false
false
DA
X-NONE
X-NONE

Hi

 

Sorry in advance, but this will be a long story...
Thank you for taking the time to look at it! :)

 

I have a 2D model that worked fine until a couple of
days ago where I tried changing the mesh a bit. Now when I try to run it aborts
calculation and gives some of the following errors:

 

- There are 14 unconnected regions in the model.

Question about UEL

Hi every body,

I'm a new user of UEL and have a questions. It would be very kind of you to help me with it.

I have a MATLAB code which gives me some big matrices. Is it
possible to save them as a file (.txt, .dat, etc) and call them inside
of the UEL? (It's almost impossible to change all of those codes to
FORTRAN or copy-paste them to UEL.)

Thanks in advance,

Best Regards,

-------------

Ashkan

Modeling a cardboard material model in Abaqus

Free Tags: 

Hello all,

For a project I want to model a cardboard package model. Basically I can even approximate a material responses, but I just want some material that can be used as packaging, such as cardboard. I am solving this problem in Abaqus. However I do not need to write a UMAT for that, any built in 'similar' model can work for me. Can you suggest some such materials in Abaqus?

Abaqus Eigen Value Analysis Error

Hello,

I am having issues running an Eigen value simulation on a bridge model that I have developed. The model consists of a bridge super-structure supported by pinned connections on the ends of the bridge length and a roller support in the middle.

The model runs without errors when I do not request an Eigen value analysis, but aborts when I request an Eigen analysis. The message file sites the cause as a factorization error. Warnings also appear stating a zero pivot when releasing the 1st dof of the nodes associated with the roller connection.

SIMULIA's picture

Interested in learning how to automate multi-step simulation workflows?

Join us on Thursday for this FREE eSeminar and learn how Learn how Isight could be used to:

•Automate a series of functions to create a Sim-flow
•Add components to a Sim-flow
•Execute a Sim-flow
•Visualize Sim-flow results
•Assess the impact of the various design variables on the objectives
and identify significant interactions among the design variables
•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?

Example:

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

Thanks in advance,

Ashkan

SIMULIA's picture

Missed the SIMULIA XFEM eSeminar?

No worries! Check out the recording and learn how Abaqus FEA provides proven robust capabilities for modeling bulk fracture and crack propagation in many materials. One of the newest techniques available in Abaqus is the eXtended Finite Element Method (XFEM) whose advantages over alternative approaches include mesh independent crack definition, improved convergence rates for stationary cracks, simplified mesh refinement studies and more!

Find the video here:
http://bit.ly/xfemvideo

Pages

Subscribe to RSS - ABAQUS

Recent comments

More comments

Syndicate

Subscribe to Syndicate