CPFEM for Calculix

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Purpose

This page provides the updates needed for Calculix to run large deformation codes, specifically the crystal plasticity UMAT designed for Abaqus found here. The process outlined here is for Linux. A similar process could be followed for Windows, though the compilation step will be different depending on the compilers used.

Building Calculix with CPFEM

  1. Download the following files and save them in the src/ directory of your Calculix distribution WITHOUT the *.txt extensions. Make sure the names are all lowercase except for Makefile.inc.
  2. Download the crystal plasticity UMAT, make any necessary edits, then save in the src/ directory as well
  3. Additionally, copy the following parameter files to the src/ directory
    • params_xtal.inc
    • numbers.inc
  4. Open a terminal, and from the src/ directory, type
  5. make
  6. An executable will be created, named something like ccx_#.##, where the #.## corresponds to your Calculix version
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