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 LinuxHow To Install CalculiX 2.6 multi-thread under Ubuntu 11.04 and later. operating system in 1998. Convergent Mechanical has ported the application to the Windows operating system.Convergent Mechanical's website.
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.CalculiX Review by iMechanica. The pre-processor can also generate mesh data from STL files. CGX Documentation.
There is an active online community that provides support at Discourse.CalculiX Discourse Group. Convergent Mechanical also provides installation support for their extended version of CalculiX for Windows.
There is a friendly CalculiX LauncherCalculiX Launcher (SourceForge). with CCX wizard for both Windows and Linux. CalculiX Launcher.
Also possible is the Installation in Windows 10 Fall Creator (1709) with the new Linux Subsystem WSL.
A Python library, pycalculix,pycalculix website. was written to automate the creation of CalculiX models in the Python programming language. The library provides Python access to building, loading, meshing, solving, and querying CalculiX results for 2D models. Pycalculix was written by Justin Black. Examples and tutorials are available on the pycalculix site.
FreeCAD has developed a FEM workbench that automates the creation of CalculiX models.
There is a lot good examples of use of CalculiXCalculiX examples. by Prof. Martin Kraska, Brandenburg University of Applied Sciences.
The preCICE (software) adapter for CalculiXCalculiX preCICE adapter allows coupling it to other solvers to form partitioned multi-physics simulations.
The source code is distributed as archives on Guido Dhnond's website and via GitHub.Official repository on GitHub The GitHub project includes an issue tracker. Contributions via pull requests are not directly merged, but the suggestions are incorporated manually by the maintainers,Closed PRs on GitHub suggesting that the primary development takes place on a different repository.
Literature Guido Dhondt: "The Finite Element Method for Three-Dimensional Thermomechanical Applications". Wiley, Hoboken 2004, CCX v2.18 documentation CGX v2.18 documentation Getting Started Guide FreeCAD FEM workbench for CalculiX
See also List of computational fluid dynamics software
References
CalculiX website. Guido Dhondt's website for CalculiX.
External links
Searchable online documentation CalculiX for Windows CalculiX Discussion Group pycalculix website FreeCAD FEM workbench MFront code generator for CalculiX