CalculiX (official versions are on www.calculix.de, the official GitHub repository is at https://github.com/Dhondtguido/CalculiX).

Umat examples by amsimulation with conversion abaqus to calculix

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Stefano4000 March 23, 2026, 10:54am 1

Here an example of a conversion:

Topic		Replies	Views	Activity
Umat_ABAQUS and Umat_ABAQUSNL	6	365	April 8, 2024
PyLabFEA: ML of yield functions with Abaqus and perhaps this year with calculix Tool interfaces	0	75	April 12, 2026
How to create a user material?	5	1391	July 21, 2022
Using Abaqus VUMAT files in CalculiX	6	958	March 5, 2023
Implementing UMAT using shared library	6	395	October 23, 2024