Calculi X
Open-source finite element analysis package for structural and thermal analysis.
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Use it free
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Self-host it
Run the open-source version on your own infrastructure.
What is Calculi X?
CalculiX is a three-dimensional structural finite element analysis (FEA) tool designed to solve complex engineering problems using the finite element method (FEM). It enables users to build, calculate, and post-process finite element models, with a focus on structural mechanics, static and dynamic simulations, and thermal analysis. The software is particularly useful for engineers, researchers, and students in mechanical, civil, and aerospace engineering who need to analyze stresses, strains, and deformations in materials and structures under various loading conditions. CalculiX addresses the challenge of simulating real-world mechanical behavior by providing a comprehensive suite of tools for pre-processing, solving, and post-processing, making it a valuable resource for those seeking an open-source alternative to commercial FEA software. The tool is developed as an open-source project under the GNU General Public License version 2.0, allowing users to freely use, modify, and distribute the software. It is written primarily in Fortran and C, with a graphical user interface (GUI) built using OpenGL for 3D visualization. CalculiX supports a wide range of input formats, including Abaqus, ANSYS, and Nastran, enabling compatibility with commercial pre-processors. This flexibility allows users to leverage existing workflows while benefiting from the open-source nature of CalculiX. The tool is available on Unix-based systems like Linux and IRIX, as well as Microsoft Windows, making it accessible across different computing environments.
How it works
One limitation of CalculiX is its reliance on Fortran and C for the solver, which may result in performance bottlenecks for large-scale simulations compared to commercial FEA software that may use more optimized algorithms. Additionally, while the pre-processor supports OpenGL for 3D visualization, the rendering capabilities may not match those of dedicated CAD or visualization tools, which could affect the clarity of complex models.
How to use it
- 1Use the CalculiX tool to complete your task.
- 2Use the CalculiX tool to complete your task.
- 3Use the CalculiX tool to complete your task.
- 4Use the CalculiX tool to complete your task.
What it can do
- fea software
Use cases
Assumptions and limitations
Assumptions
- source: https://www.calculix.de/
- license: GPL-2.0 — free to use
- privacy: Self-hosted — you control your data
Understanding the result
Open-source finite element analysis package for structural and thermal analysis.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by (MIT).
- Built with
- (https://www.calculix.de/)
- License
- MIT
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Query
- Output
- Text
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- Built with
- License
- MIT
Open-source project
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References
- / — GitHub Repository
Upstream project · GitHub
- GPL-2.0 License
Upstream project