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  1. moeenhappy

    Adding Damage Evolution in Existing VUMAT

    Hi, I have a VUMAT for progressive damage of fiber composite but that only contains damage initiation. I want to add damage evolution in this sub-routine. Is there anyone who can help me out solving this? I can provide the subroutine if you want? Thanks
  2. moeenhappy

    how can the plastic strain be greater than unity?

    Does anyone know how can the plastic strain be greater than unity? Such as in the benchmark manual 3.2.10 Indentation of a crushable foam plate: As I Know that the formula for True strain is True Strain = ln(1+nominal strain) and if we consider a compression process then nominal strain should...
  3. moeenhappy

    Logrithmic Plastic Strain Formula confusion (Hardening Table) Urgent

    Thanks for your reply. Actually this is the dummy data I created to understand the concept only. I have a complete data series as well but same is happening for real data as I tried to convert it into log plastic strain using the formula (ln(1+nominal strain) - true stress/E), which means that...
  4. moeenhappy

    Logrithmic Plastic Strain Formula confusion (Hardening Table) Urgent

    Hi I am really confused how to input the hardening values for crushable foam model. Abaqus wants to input the stress - strain values in hardening table as true stress and log plastic strain. In Abaqus manual the formula for calculating log plastic strain is = ln(1+nominal strain) - true...
  5. moeenhappy

    Crushable Foam Model Calibration

    Hi, I am currently facing difficulties in calibrating abaqus crushable foam model with my experimental results. I think I am bit confused about what values needs to be input in the model. Right now my elastic properties are: E=400 MPa, v=0 (because its crushing) In plastic under crushable foam...
  6. moeenhappy

    ABAQUS PDE not working

    thanks for your reply. But the thing i like in PDE is that you can run single line at a time and visually see it in abaqus cae. infact you can also create a time lapse between execution of command and that what i want. this operations are not possible with external editor because in that case...
  7. moeenhappy

    ABAQUS PDE not working

    Hi, I am trying to use Abaqus PDE to run the abaqus CAE. When i open abaqus cae, I go to file and open Abaqus PDE. But in Abaqus pde i found that the recording button is not available for recording. Secondly when i write a script and run the code by pushing the play button, then i got following...

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