P-fem for static and quasi-static analysis

Feature Requests
1

Hy,

For static and quasi-static analysis, it would be reasonable to use p-fem.
Convergence is obtained with less work on mesh.
Maybe the StressRefine (https://stressrefine.wordpress.com/) library can be used?

Regards.

2

Implementing a new solver would require a lot of work but you are right that CalculiX (like most other FEA solvers) uses h-FEM and doesn’t support p-FEM. CalculiX even offers some simple adaptive h refinement by the way.

1 Like
3

Hi,

It is not intended to write a new solver, but only to use the ccx results to call the StressRefine library (see link).

4

Ok, it’s an interesting project. But it doesn’t support CalculiX results directly, right ? So it would be necessary to adapt this library to CalculiX results format before implementing anything in PrePoMax.

5

Exactly as you wrote.

6

Then I would ask on the CalculiX forum first. Some users there have experience with CalculiX source code and maybe someone will be interested enough to help adapt this library for use with CalculiX files.

7

That is an interesting project. But is is probably limited to linear analyses?

8

As far as I know, it can be used for static and quasi-static analyzes like Creo-Simulate and StressCheck.

9

That’s what it looks like, at least from what I could read and interpret.