Parametric study and other questions

[aaquib]

Hello,
I just watched some very interesting youtube lectures by @FEAnalyst and was intending to switch to prepomax/calculix from ABAQUS. I would like to know a bit more about the capabilities of this software.

1. How would one go about performing a parametric study? In ABAQUS, one can edit the jnl file to make it a python file and run the python script including loops.
2. I only see linear elastic and plastic material definition options in the lectures. I am pretty sure calculix would have something as basic as hyperelasticity, but how to input those properties?
3. Does calculix have the tools to model failure/delamination, such as cohesive zone modelling etc?
4. Does one need to download calculix separately from prepomax?

Thanks in advance

[FEAnalyst]

@aaquib

How would one go about performing a parametric study? In ABAQUS, one can edit the jnl file to make it a python file and run the python script including loops.

There’s no built-in functionality for that yet but you could use Optimax which can work on CalculiX input files: https://prepomax.fs.um.si/optimax/

@aaquib

I only see linear elastic and plastic material definition options in the lectures. I am pretty sure calculix would have something as basic as hyperelasticity, but how to input those properties?

Yes, more advanced material models (like hyperelasticity) are available in CalculiX and can be added using the Keyword Editor like I did here with creep: https://www.youtube.com/watch?v=MXrQBQH7Ecw

@aaquib

Does calculix have the tools to model failure/delamination, such as cohesive zone modelling etc?

No, CalculiX doesn’t have such features. Only a simple fatigue crack propagation procedure.

@aaquib

Does one need to download calculix separately from prepomax?

No, the CalculiX binary is provided in the PrePoMax package (Solver folder).