CalculiX is a free and open-source finite-element analysis application that uses an input format similar to Abaqus. It has an implicit and explicit solver (CCX) written by Guido Dhondt and a pre- and post-processor (CGX) written by Klaus Wittig. The original software was written for the Linux operating system in 1998. Convergent Mechanical has ported the application to the Windows operating system.
Notice: The authors acknowledge that naming conventions and input style formats for CalculiX are based on those used by ABAQUS, a proprietary, general purpose finite element code developed and supported by Hibbitt, Karlsson & Sorensen, Inc (HKS) ( and are used with kind permission from HKS. Results obtained from CalculiX are in no way connected to ABAQUS. For a reference describing the theory behind CalculiX CrunchiX the user is referred to: Dhondt, G. The Finite Element Method for Three-Dimensional Thermomechanical Applications , Wiley, 2004. A discourse discussion group for CalculiX has been setup. That way you can share problems and experiences with other CalculiX users. To join the group go to
Excerpt from the source-code README · 1,733 chars · not written by Vinony
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CalculiX is a free and open-source finite-element analysis application that uses an input format similar to Abaqus. It has an implicit and explicit solver (CCX) written by Guido Dhondt and a pre- and post-processor (CGX) written by Klaus Wittig. The original software was written for the Linux operating system in 1998. Convergent Mechanical has ported the application to the Windows operating system.
The pre-processor component of CalculiX can generate grid data for the computational fluid dynamics programs duns, ISAAC and OpenFOAM. It can also generate input data for the commercial FEM programs Nastran, Ansys and Abaqus. The pre-processor can also generate mesh data from STL files.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).