# Collected posts on third party developments, examples, etc

**URL:** <https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827>\
**Category:** Tool interfaces\
**Created:** [March 16, 2026, 6:25am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827 "2026-03-16T06:25:35Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Durbul](https://avatars.discourse-cdn.com/v4/letter/d/8dc957/32.png) [@Durbul](https://calculix.discourse.group/u/Durbul)\
**Post date:** [March 16, 2026, 6:25am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/1 "2026-03-16T06:25:35Z")

</div>

This post contains several issues from the CalculiX GitHub repository that have been closed due to our new issue policy ([[Announcement] Issue policy on GitHub · Issue #158 · Dhondtguido/CalculiX · GitHub](https://github.com/Dhondtguido/CalculiX/issues/158)) and were transferred here. Thanks to stefano2734 for keeping track of all the developments.

> **Fatigue or Lifetime: solidmat perhaps an idol for calculix**
> 
> See  
> [https://github.com/muratartim/SolidMAT](https://github.com/muratartim/SolidMAT)
> 
> With implementation of lifetime to EUROCODE in an example bridge part.

> <https://github.com/Dhondtguido/CalculiX/issues/157>
>
> See 
> https://github.com/muratartim/SolidMAT
> 
> With implementation of lifetime to …EUROCODE in an example bridge part.

> **Website: PyLabFEA: ML of yield functions with Abaqus and perhaps with calculix**
> 
> PyLabFEA does have an example of machine learning of material yield functions.  
> Isotropic and anisotropic examples are shown in a science article.
> 
> See  
> [https://github.com/AHartmaier/pyLabFEA](https://github.com/AHartmaier/pyLabFEA)  
> Abaqus example with umat.
> 
> So calculix should be also possible. I made an issue.  
> **[AHartmaier/pyLabFEA#13](https://github.com/AHartmaier/pyLabFEA/issues/13)**
> 
> The developer will make an umat for calculix. It is a new point of his development list.

> <https://github.com/Dhondtguido/CalculiX/issues/156>
>
> PyLabFEA does have an example of machine learning of material yield functions.
> I…sotropic and anisotropic examples are shown in a science article.
> 
> See 
> https://github.com/AHartmaier/pyLabFEA
> Abaqus example with umat.
> 
> So calculix should be also possible. I made an issue.
> https://github.com/AHartmaier/pyLabFEA/issues/13
> 
> The developer will make an umat for calculix. It is a new point of his development list.

> **Material database: coupling with calculix? Thermopack for fluids, and more**
> 
> Thermopack is a Fortran code to fluids.  
> [https://github.com/thermotools/thermopack](https://github.com/thermotools/thermopack)  
> data are in json format.  
> [https://github.com/thermotools/thermopack/tree/main/fluids](https://github.com/thermotools/thermopack/tree/main/fluids)
> 
> Perhaps a good source for thermal fluid calculations.
> 
> For electronics I see solid database for magnetic and electric material data:  
> [https://github.com/upb-lea/materialdatabase](https://github.com/upb-lea/materialdatabase)
> 
> An interesting project: cad to FEA Exchange  
> [https://github.com/mvernacc/material-properties-interchange](https://github.com/mvernacc/material-properties-interchange)
> 
> Advanced:  
> [https://github.com/PhasesResearchLab/MaterialsMap](https://github.com/PhasesResearchLab/MaterialsMap)
> 
> Advanced scheme:  
> [https://github.com/Ronakshoghi/MetadataSchema](https://github.com/Ronakshoghi/MetadataSchema)  
> Used by [https://github.com/AHartmaier/pyLabFEA](https://github.com/AHartmaier/pyLabFEA)

> <https://github.com/Dhondtguido/CalculiX/issues/155>
>
> Thermopack is a Fortran code to fluids.
> https://github.com/thermotools/thermopac…k
> data are in json format. 
> https://github.com/thermotools/thermopack/tree/main/fluids
> 
> Perhaps a good source for thermal fluid calculations.
> 
> For electronics I see solid database for magnetic and electric material data:
> https://github.com/upb-lea/materialdatabase
> 
> An interesting project: cad to FEA Exchange
> https://github.com/mvernacc/material-properties-interchange
> 
> Advanced: 
> https://github.com/PhasesResearchLab/MaterialsMap
> 
> Advanced scheme:
> https://github.com/Ronakshoghi/MetadataSchema
> Used by https://github.com/AHartmaier/pyLabFEA

> **WebSite: Wind blades b3p command line tool with calculix**
> 
> See tool  
> [https://github.com/wr1/b3p](https://github.com/wr1/b3p)

> <https://github.com/Dhondtguido/CalculiX/issues/152>
>
> WebSite: Wind blades b3p command line tool with calculix 
> See tool 
> https://git…hub.com/wr1/b3p

> **Website: FerriX a Rust implementation of calculix**
> 
> See [https://github.com/KwentiN-ui/FerriX](https://github.com/KwentiN-ui/FerriX)
> 
> Actual an Early version with version 0.1.6

> <https://github.com/Dhondtguido/CalculiX/issues/150>
>
> See https://github.com/KwentiN-ui/FerriX
> 
> Actual an Early version with version 0….1.6

> **Optimization of structures: Topopt.jl a tool to couple with calculix?**
> 
> See [https://github.com/JuliaTopOpt/TopOpt.jl](https://github.com/JuliaTopOpt/TopOpt.jl)
> 
> Perhaps a better solution than BESO for calculix
> 
> Other optimization bibliotheca  
> [https://github.com/SciML/Optimization.jl](https://github.com/SciML/Optimization.jl)

> <https://github.com/Dhondtguido/CalculiX/issues/148>
>
> See https://github.com/JuliaTopOpt/TopOpt.jl
> 
> Perhaps a better solution than BES…O for calculix
> 
> Other optimization bibliotheca
> https://github.com/SciML/Optimization.jl

> **Website: OpenVSP by NASA uses Nastran and Calculix**
> 
> See Workshop 2024: [https://openvsp.org/wiki/doku.php?id=workshop2024](https://openvsp.org/wiki/doku.php?id=workshop2024)
> 
> [https://openvsp.org/wiki/lib/exe/fetch.php?media=workshop24:structures.pdf](https://openvsp.org/wiki/lib/exe/fetch.php?media=workshop24:structures.pdf)
> 
> [https://openvsp.org/wiki/lib/exe/fetch.php?media=workshop24:openvsp\_conference\_2024\_structural\_design.pdf](https://openvsp.org/wiki/lib/exe/fetch.php?media=workshop24:openvsp_conference_2024_structural_design.pdf)

> <https://github.com/Dhondtguido/CalculiX/issues/144>
>
> Website: OpenVSP by NASA uses Nastran and Calculix
> See Workshop 2024: https://op…envsp.org/wiki/doku.php?id=workshop2024
> 
> https://openvsp.org/wiki/lib/exe/fetch.php?media=workshop24:structures.pdf
> 
> https://openvsp.org/wiki/lib/exe/fetch.php?media=workshop24:openvsp\_conference\_2024\_structural\_design.pdf

> **Benchmark to seamplex, Ansys, Code Aster: nafems, thick cantilever and more**
> 
> 000 Tensile-Test: seamplex, calculix, code Aster  
> [https://www.seamplex.com/fino/cases/000-tensile-test/](https://www.seamplex.com/fino/cases/000-tensile-test/)
> 
> 003 Cube in Cube with contact and tension: simplex only  
> [https://www.seamplex.com/fino/cases/003-cube-pure-tension/](https://www.seamplex.com/fino/cases/003-cube-pure-tension/)
> 
> 006 Cylinder under pure Compression: seamplex only  
> [https://www.seamplex.com/fino/cases/006-cylinder-pure-compression/](https://www.seamplex.com/fino/cases/006-cylinder-pure-compression/)
> 
> 010 nafems LE1: seamplex sparselizard (comparison with bconverged case possible)  
> [https://www.seamplex.com/fino/cases/010-nafems-le1/](https://www.seamplex.com/fino/cases/010-nafems-le1/)
> 
> 012 nafems LE10 hexaeder to tetrahedral : seamplex (comparison with bconverged case possible)  
> [https://www.seamplex.com/fino/cases/012-nafems-le10/](https://www.seamplex.com/fino/cases/012-nafems-le10/)
> 
> 012 nafems LE10 tetra: seamplex, Ansys, calculix, code Aster  
> [https://www.seamplex.com/fino/cases/050-tet10/](https://www.seamplex.com/fino/cases/050-tet10/)
> 
> 050 Tet-10 test: seamplex, Ansys, calculix, code Aster  
> [https://www.seamplex.com/fino/cases/050-tet10/](https://www.seamplex.com/fino/cases/050-tet10/)
> 
> 060 nafems challenge square plate: seamplex only  
> [https://www.seamplex.com/fino/cases/060-nafems-challenge-problem1/](https://www.seamplex.com/fino/cases/060-nafems-challenge-problem1/)
> 
> 065: thick cylinder: seamplex only  
> [https://www.seamplex.com/fino/cases/065-thick-cylinder/](https://www.seamplex.com/fino/cases/065-thick-cylinder/)
> 
> 070 two cubes different material: seamplex only  
> [https://www.seamplex.com/fino/cases/070-two-cubes/](https://www.seamplex.com/fino/cases/070-two-cubes/)
> 
> 075 fixed compressed cylinder: seamplex sparselizard, calculix, Nastran, Ansys  
> [https://www.seamplex.com/fino/cases/075-fixed-compressed-cylinder/](https://www.seamplex.com/fino/cases/075-fixed-compressed-cylinder/)
> 
> 085 Thick cantilever: seamplex, Ansys, calculix  
> [https://www.seamplex.com/fino/cases/085-cantilever-cylinder/](https://www.seamplex.com/fino/cases/085-cantilever-cylinder/)
> 
> 105 small cylinder in greater, smooth mesh: seamplex, calculix  
> [https://www.seamplex.com/fino/cases/105-cyl-cyl-smooth/](https://www.seamplex.com/fino/cases/105-cyl-cyl-smooth/)
> 
> 115 small cylinder in greater, rough mesh: seamplex with sparselizard and fino  
> [https://www.seamplex.com/fino/cases/115-cyl-cyl-rough/](https://www.seamplex.com/fino/cases/115-cyl-cyl-rough/)
> 
> And all cases:  
> [https://www.seamplex.com/fino/cases/](https://www.seamplex.com/fino/cases/)
> 
> Perhaps some cases new to calculix or in benchmark to other links.

> <https://github.com/Dhondtguido/CalculiX/issues/137>
>
> Benchmark to seamplex, Ansys, Code Aster: nafems, thick cantilever and more
> 
> 000… Tensile-Test: seamplex, calculix, code Aster
> https://www.seamplex.com/fino/cases/000-tensile-test/
> 
> 003 Cube in Cube with contact and tension: simplex only
> https://www.seamplex.com/fino/cases/003-cube-pure-tension/
> 
> 006 Cylinder under pure Compression: seamplex only
> https://www.seamplex.com/fino/cases/006-cylinder-pure-compression/
> 
> 010 nafems LE1: seamplex sparselizard (comparison with bconverged case possible)
> https://www.seamplex.com/fino/cases/010-nafems-le1/
> 
> 012 nafems LE10 hexaeder to tetrahedral : seamplex (comparison with bconverged case possible)
> https://www.seamplex.com/fino/cases/012-nafems-le10/
> 
> 012 nafems LE10 tetra: seamplex, Ansys, calculix, code Aster 
> https://www.seamplex.com/fino/cases/050-tet10/
> 
> 050 Tet-10 test: seamplex, Ansys, calculix, code Aster
> https://www.seamplex.com/fino/cases/050-tet10/
> 
> 060 nafems challenge square plate: seamplex only
> https://www.seamplex.com/fino/cases/060-nafems-challenge-problem1/
> 
> 065: thick cylinder: seamplex only
> https://www.seamplex.com/fino/cases/065-thick-cylinder/
> 
> 070 two cubes different material: seamplex only
> https://www.seamplex.com/fino/cases/070-two-cubes/
> 
> 075 fixed compressed cylinder: seamplex sparselizard, calculix, Nastran, Ansys
> https://www.seamplex.com/fino/cases/075-fixed-compressed-cylinder/
> 
> 085 Thick cantilever: seamplex, Ansys, calculix
> https://www.seamplex.com/fino/cases/085-cantilever-cylinder/
> 
> 105 small cylinder in greater, smooth mesh: seamplex, calculix
> https://www.seamplex.com/fino/cases/105-cyl-cyl-smooth/
> 
> 115 small cylinder in greater, rough mesh: seamplex with sparselizard and fino
> https://www.seamplex.com/fino/cases/115-cyl-cyl-rough/
> 
> And all cases:
> https://www.seamplex.com/fino/cases/
> 
> Perhaps some cases new to calculix or in benchmark to other links.

> **Literature: academic work with calculix**
> 
> 2017: additive manufacturing [https://www.researchgate.net/publication/319617932\_Simulation\_of\_additive\_manufacturing\_using\_Calculix\_Procedure\_to\_calculate\_the\_temperature\_distribution\_during\_additive\_manufacturing](https://www.researchgate.net/publication/319617932_Simulation_of_additive_manufacturing_using_Calculix_Procedure_to_calculate_the_temperature_distribution_during_additive_manufacturing)
> 
> 2018: FSI: calculix and precice TUM  
> [https://mediatum.ub.tum.de/doc/1574612/940437849153.pdf](https://mediatum.ub.tum.de/doc/1574612/940437849153.pdf)
> 
> 2018: umat subroutine for composite material with Abaqus, calculix 2.13 and Linde Damage Model with test NAFEMS R0031  
> [https://researchspace.csir.co.za/server/api/core/bitstreams/7e9c51bf-03a9-4c87-8b0e-d381c7ab18e0/content](https://researchspace.csir.co.za/server/api/core/bitstreams/7e9c51bf-03a9-4c87-8b0e-d381c7ab18e0/content)
> 
> 2018: comparison with code aster and Ansys static and contact  
> [http://www.icicel.org/ell/contents/2018/7/el-12-07-05.pdf](http://www.icicel.org/ell/contents/2018/7/el-12-07-05.pdf)
> 
> 2018: welding DFLUX with Abaqus  
> [https://www.diva-portal.org/smash/get/diva2:1270383/FULLTEXT01.pdf](https://www.diva-portal.org/smash/get/diva2:1270383/FULLTEXT01.pdf)
> 
> 2020: italia FSI with precice, su2 and calculix  
> [https://www.politesi.polimi.it/retrieve/f697e39b-18af-496f-a546-e5416bb9cebe/2021\_10\_Zanella.pdf](https://www.politesi.polimi.it/retrieve/f697e39b-18af-496f-a546-e5416bb9cebe/2021_10_Zanella.pdf)
> 
> 2020: Peter Pauligmann: Calculix and GPU with pastix:  
> [https://mediatum.ub.tum.de/doc/1575696/1575696.pdf](https://mediatum.ub.tum.de/doc/1575696/1575696.pdf)
> 
> 2021: comparison with some other open source fem codes and solvers with parametric NAFEMS LE 10 benchmark  
> [https://www.researchgate.net/publication/356776969\_Parametric\_NAFEMS\_LE10\_benchmark\_Comparison\_of\_resource\_consumption\_for\_different\_FEA\_programs](https://www.researchgate.net/publication/356776969_Parametric_NAFEMS_LE10_benchmark_Comparison_of_resource_consumption_for_different_FEA_programs)
> 
> 2021: 3d reinforced concrete simulation  
> [https://pdfs.semanticscholar.org/0d50/ab0c1f770cd62337afb998623cc87a15b491.pdf](https://pdfs.semanticscholar.org/0d50/ab0c1f770cd62337afb998623cc87a15b491.pdf)
> 
> 2022: thermal core vessel with calculix 2.17 and Abaqus  
> [https://www.kns.org/files/pre\_paper/48/22A-020-%EC%9D%B4%EC%A7%84%ED%96%89.pdf](https://www.kns.org/files/pre_paper/48/22A-020-%EC%9D%B4%EC%A7%84%ED%96%89.pdf)
> 
> 2023: FSI with waves by calculix, precice and new olaflow
> 
> [https://watermark02.silverchair.com/083611\_1\_5.0160328.pdf](https://watermark02.silverchair.com/083611_1_5.0160328.pdf)
> 
> 2024: calculix and CFD rwth Aachen correctness and performance (speedup 1.43 with some code improvements)  
> [https://publications.rwth-aachen.de/record/1012150/files/1012150.pdf](https://publications.rwth-aachen.de/record/1012150/files/1012150.pdf)
> 
> 2024: FSI with precice, openfoam and calculix with flapping foils for harvesting  
> [https://actesjh.ec-nantes.fr/images/19JH/Annexe/ahmed\_jh19.pdf](https://actesjh.ec-nantes.fr/images/19JH/Annexe/ahmed_jh19.pdf)
> 
> 2025: OpenAM-SimCCX  
> [https://www.researchgate.net/publication/397215668\_OpenAM-SimCCX\_An\_Open-Source\_Framework\_for\_Thermo-Mechanical\_Analysis\_of\_Additive\_Manufacturing\_with\_CalculiX](https://www.researchgate.net/publication/397215668_OpenAM-SimCCX_An_Open-Source_Framework_for_Thermo-Mechanical_Analysis_of_Additive_Manufacturing_with_CalculiX)
> 
> 2025: FSI Flutter Analysis with HADES and Calculix  
> [https://gpps.global/wp-content/uploads/2025/09/GPPS-TC-2025\_paper\_248.pdf](https://gpps.global/wp-content/uploads/2025/09/GPPS-TC-2025_paper_248.pdf)
> 
> 2025: FSI ship-wave in literature review  
> [https://pure.strath.ac.uk/ws/portalfiles/portal/266983658/Mursid-etal-JMSE-2025-Coupled-ship-simulation-in-hydrodynamics-and-structural-dynamics.pdf](https://pure.strath.ac.uk/ws/portalfiles/portal/266983658/Mursid-etal-JMSE-2025-Coupled-ship-simulation-in-hydrodynamics-and-structural-dynamics.pdf)

> <https://github.com/Dhondtguido/CalculiX/issues/136>
>
> Literature: academic work with calculix
> 
> 2017: additive manufacturing https://ww…w.researchgate.net/publication/319617932\_Simulation\_of\_additive\_manufacturing\_using\_Calculix\_Procedure\_to\_calculate\_the\_temperature\_distribution\_during\_additive\_manufacturing
> 
> 2018: FSI: calculix and precice TUM 
> https://mediatum.ub.tum.de/doc/1574612/940437849153.pdf
> 
> 2018: umat subroutine for composite material with Abaqus, calculix 2.13 and Linde Damage Model with test NAFEMS R0031
> https://researchspace.csir.co.za/server/api/core/bitstreams/7e9c51bf-03a9-4c87-8b0e-d381c7ab18e0/content
> 
> 2018: comparison with code aster and Ansys static and contact 
> http://www.icicel.org/ell/contents/2018/7/el-12-07-05.pdf
> 
> 2018: welding DFLUX with Abaqus 
> https://www.diva-portal.org/smash/get/diva2:1270383/FULLTEXT01.pdf
> 
> 2020: italia FSI with precice, su2 and calculix 
> https://www.politesi.polimi.it/retrieve/f697e39b-18af-496f-a546-e5416bb9cebe/2021\_10\_Zanella.pdf
> 
> 2020: Peter Pauligmann: Calculix and GPU with pastix: 
> https://mediatum.ub.tum.de/doc/1575696/1575696.pdf
> 
> 2021: comparison with some other open source fem codes and solvers with parametric NAFEMS LE 10 benchmark
> https://www.researchgate.net/publication/356776969\_Parametric\_NAFEMS\_LE10\_benchmark\_Comparison\_of\_resource\_consumption\_for\_different\_FEA\_programs
> 
> 2021: 3d reinforced concrete simulation
> https://pdfs.semanticscholar.org/0d50/ab0c1f770cd62337afb998623cc87a15b491.pdf
> 
> 2022: thermal core vessel with calculix 2.17 and Abaqus 
> https://www.kns.org/files/pre\_paper/48/22A-020-%EC%9D%B4%EC%A7%84%ED%96%89.pdf
> 
> 2023: FSI with waves by calculix, precice and new olaflow
> 
> https://watermark02.silverchair.com/083611\_1\_5.0160328.pdf
> 
> 2024: calculix and CFD rwth Aachen correctness and performance (speedup 1.43 with some code improvements)
> https://publications.rwth-aachen.de/record/1012150/files/1012150.pdf
> 
> 2024: FSI with precice, openfoam and calculix with flapping foils for harvesting
> https://actesjh.ec-nantes.fr/images/19JH/Annexe/ahmed\_jh19.pdf
> 
> 2025: OpenAM-SimCCX
> https://www.researchgate.net/publication/397215668\_OpenAM-SimCCX\_An\_Open-Source\_Framework\_for\_Thermo-Mechanical\_Analysis\_of\_Additive\_Manufacturing\_with\_CalculiX
> 
> 2025: FSI Flutter Analysis with HADES and Calculix
> https://gpps.global/wp-content/uploads/2025/09/GPPS-TC-2025\_paper\_248.pdf
> 
> 2025: FSI ship-wave in literature review
> https://pure.strath.ac.uk/ws/portalfiles/portal/266983658/Mursid-etal-JMSE-2025-Coupled-ship-simulation-in-hydrodynamics-and-structural-dynamics.pdf

> **Website: material analysis: MAC GMC or newer NASMAT of NASA coupled with calculix**
> 
> See more for multiscale material analysis:
> 
> [https://ntrs.nasa.gov/citations/20190029045](https://ntrs.nasa.gov/citations/20190029045)  
> [https://ntrs.nasa.gov/api/citations/20190029045/downloads/20190029045.pdf](https://ntrs.nasa.gov/api/citations/20190029045/downloads/20190029045.pdf)
> 
> [https://ntrs.nasa.gov/api/citations/20210025380/downloads/3613141%20final.pdf](https://ntrs.nasa.gov/api/citations/20210025380/downloads/3613141%20final.pdf)
> 
> [https://ntrs.nasa.gov/api/citations/20205002934/downloads/Ricks\_NASAGRC\_NASMAT.pdf](https://ntrs.nasa.gov/api/citations/20205002934/downloads/Ricks_NASAGRC_NASMAT.pdf)
> 
> [https://ntrs.nasa.gov/api/citations/20220005363/downloads/NASA\_ML\_Group\_Talk.pdf](https://ntrs.nasa.gov/api/citations/20220005363/downloads/NASA_ML_Group_Talk.pdf)
> 
> [https://ntrs-nasa-gov.translate.goog/citations/20200000603?\_x\_tr\_sl=en&\_x\_tr\_tl=de&\_x\_tr\_hl=de&\_x\_tr\_pto=sc&google\_abuse=GOOGLE\_ABUSE\_EXEMPTION%3DID%3Dbe7610bf6843fe4a:TM%3D1755694971:C%3Dr:IP%3D2a09:bac3:2ab4:28d2::411:34-:S%3DtX85TmS-nrXxHe\_UDFgQ2IY%3B+path%3D/%3B+domain%3Dgoogle.com%3B+expires%3DWed,+20-Aug-2025+16:02:51+GMT](https://ntrs-nasa-gov.translate.goog/citations/20200000603?_x_tr_sl=en&_x_tr_tl=de&_x_tr_hl=de&_x_tr_pto=sc&google_abuse=GOOGLE_ABUSE_EXEMPTION%3DID%3Dbe7610bf6843fe4a:TM%3D1755694971:C%3Dr:IP%3D2a09:bac3:2ab4:28d2::411:34-:S%3DtX85TmS-nrXxHe_UDFgQ2IY%3B+path%3D/%3B+domain%3Dgoogle.com%3B+expires%3DWed,+20-Aug-2025+16:02:51+GMT)
> 
> [https://ntrs.nasa.gov/api/citations/20200000603/downloads/20200000603.pdf](https://ntrs.nasa.gov/api/citations/20200000603/downloads/20200000603.pdf)
> 
> Future Nasmat:  
> [https://ntrs.nasa.gov/api/citations/20220014060/downloads/ASC2022\_NASMAT\_TP\_Kaleel\_v4.pdf](https://ntrs.nasa.gov/api/citations/20220014060/downloads/ASC2022_NASMAT_TP_Kaleel_v4.pdf)

> <https://github.com/Dhondtguido/CalculiX/issues/128>
>
> Multiscale material analysis: 
> MAC GMC or newer NASMAT of NASA coupled with calc…ulix
> 
> https://ntrs.nasa.gov/citations/20190029045
> https://ntrs.nasa.gov/api/citations/20190029045/downloads/20190029045.pdf
> 
> https://ntrs.nasa.gov/api/citations/20210025380/downloads/3613141%20final.pdf
> 
> https://ntrs.nasa.gov/api/citations/20205002934/downloads/Ricks\_NASAGRC\_NASMAT.pdf
> 
> https://ntrs.nasa.gov/api/citations/20220005363/downloads/NASA\_ML\_Group\_Talk.pdf
> 
> https://ntrs-nasa-gov.translate.goog/citations/20200000603?\_x\_tr\_sl=en&\_x\_tr\_tl=de&\_x\_tr\_hl=de&\_x\_tr\_pto=sc&google\_abuse=GOOGLE\_ABUSE\_EXEMPTION%3DID%3Dbe7610bf6843fe4a:TM%3D1755694971:C%3Dr:IP%3D2a09:bac3:2ab4:28d2::411:34-:S%3DtX85TmS-nrXxHe\_UDFgQ2IY%3B+path%3D/%3B+domain%3Dgoogle.com%3B+expires%3DWed,+20-Aug-2025+16:02:51+GMT
> 
> https://ntrs.nasa.gov/api/citations/20200000603/downloads/20200000603.pdf
> 
> Future Nasmat: coupling with PreCICE
> https://ntrs.nasa.gov/api/citations/20220014060/downloads/ASC2022\_NASMAT\_TP\_Kaleel\_v4.pdf

> **Website: Wind blade tested and calculated with Ansys, Abaqus and Calculix**
> 
> See paper from 2021  
> [https://archimer.ifremer.fr/doc/00697/80935/84822.pdf](https://archimer.ifremer.fr/doc/00697/80935/84822.pdf)
> 
> For the website to links of examples or benchmarks.

> <https://github.com/Dhondtguido/CalculiX/issues/127>
>
> Wind blade tested and calculated with Ansys, Abaqus and Calculix 
> See paper from… 2021
> https://archimer.ifremer.fr/doc/00697/80935/84822.pdf
> 
> For the website to links of examples or benchmarks.

> **Website: PyCCX 0.2 with improvements in 2D and more**
> 
> See project of Dr. Luke Parry by University of Nottingham  
> [https://github.com/drlukeparry/pyccx](https://github.com/drlukeparry/pyccx)
> 
> Milestone 0.2: 2D elements and 2d axial Elements supported  
> [https://github.com/drlukeparry/pyccx/milestone/1?closed=1](https://github.com/drlukeparry/pyccx/milestone/1?closed=1)  
> [drlukeparry/pyccx#12](https://github.com/drlukeparry/pyccx/issues/12)
> 
> So it is a successor of archived pycalculix with more possibilities than 2D.
> 
> Perhaps here an information link at downloads in calculix website is here an improvement.
> 
> Other active python project to calculix is pygccx with only 3D elements.  
> [https://github.com/calculix/pygccx](https://github.com/calculix/pygccx)

> <https://github.com/Dhondtguido/CalculiX/issues/126>
>
> See project of Dr. Luke Parry by University of Nottingham
> https://github.com/drl…ukeparry/pyccx
> 
> Milestone 0.2: 2D elements and 2d axial Elements supported
> https://github.com/drlukeparry/pyccx/milestone/1?closed=1
> https://github.com/drlukeparry/pyccx/issues/12
> 
> So it is a successor of archived pycalculix with more possibilities than 2D.
> 
> Perhaps here an information link at downloads in calculix website is here an improvement.
> 
> Other active python project to calculix is pygccx with only 3D elements.
> https://github.com/calculix/pygccx

> **Core: Spectra as improvement to old arpack**
> 
> In future perhaps an alternative to Arpack  
> See spectra: improved ARPACK in C++  
> Actual version 1.2.0  
> [https://spectralib.org/](https://spectralib.org/)  
> [https://github.com/yixuan/spectra/](https://github.com/yixuan/spectra/)
> 
> spectra is at top of EIGEN  
> [https://eigen.tuxfamily.org/index.php?title=Main\_Page](https://eigen.tuxfamily.org/index.php?title=Main_Page)  
> Actual version 3.4.0, next version 5.0 in year 2025

> <https://github.com/Dhondtguido/CalculiX/issues/119>
>
> In future perhaps an alternative to Arpack
> See spectra: improved ARPACK in C++
> A…ctual version 1.2.0
> https://spectralib.org/
> https://github.com/yixuan/spectra/
> 
> spectra is at top of EIGEN 
> https://eigen.tuxfamily.org/index.php?title=Main\_Page
> Actual version 3.4.0, next version 5.0 in year 2025, actual is 5.0.1 in 2026

> **Plug-in: New Free Creep Tool cfre**
> 
> See Python tool with Abaqus Plugin
> 
> [https://www.sciencedirect.com/science/article/pii/S2352711024003285](https://www.sciencedirect.com/science/article/pii/S2352711024003285)
> 
> [https://github.com/tangyuanze/CFre](https://github.com/tangyuanze/CFre)
> 
> Perhaps an idea to expand calculix or to make a version for calculix of this tool.

> <https://github.com/Dhondtguido/CalculiX/issues/118>
>
> See Python tool with Abaqus Plugin 
> 
> https://www.sciencedirect.com/science/artic…le/pii/S2352711024003285
> 
> https://github.com/tangyuanze/CFre
> 
> Perhaps an idea to expand calculix or to make a version for calculix of this tool.

> **Post processing Fatigue: Coupling with PyLife from Bosch?**
> 
> Bosch opens PyLife at GitHub.
> 
> A coupling with Abaqus 2024 is made in last version by odb.  
> [https://github.com/boschresearch/pylife](https://github.com/boschresearch/pylife)  
> Perhaps a simple Adaption to Calculix is possible.  
> Actual is version 2.21 with extended possibilities to FKM, Wöhler, Rainflow and more.
> 
> PyLife project is open for Code.
> 
> [boschresearch/pylife#162](https://github.com/boschresearch/pylife/issues/162)
> 
> But other free fatigue python tools are possible:
> 
> [https://pypi.org/project/py\_fatigue/](https://pypi.org/project/py_fatigue/)  
> [https://github.com/Gunnstein/fatpack](https://github.com/Gunnstein/fatpack)  
> [https://pypi.org/project/ffpack/](https://pypi.org/project/ffpack/)  
> [https://pypi.org/project/reliability/](https://pypi.org/project/reliability/)

> <https://github.com/Dhondtguido/CalculiX/issues/117>
>
> Post processing Fatigue: Coupling with PyLife from Bosch?
> Bosch improves PyLif…e at GitHub.
> 
> A coupling with Abaqus 2024 is made in last version by odb.
> https://github.com/boschresearch/pylife
> Perhaps a simple Adaption to Calculix is possible.
> Actual is version 2.21 with extended possibilities to FKM, Wöhler, Rainflow and more.
> 
> PyLife project is open for Code.
> 
> https://github.com/boschresearch/pylife/issues/162
> 
> But other free fatigue python tools are possible: 
> 
> https://pypi.org/project/py\_fatigue/
> https://github.com/Gunnstein/fatpack
> https://pypi.org/project/ffpack/
> https://pypi.org/project/reliability/

> **Core: Is some Code here with F77? VPZZ goes to F90 with Calculix in 2023**
> 
> Vpzz says that the code in this files with f90 is then better readable.
> 
> VPZZ translated all F77 code to F90. This was made in 2023 with older Calculix than 2.22.
> 
> See
> 
> [https://github.com/vpzz/CalculiX-compatible-with-F90](https://github.com/vpzz/CalculiX-compatible-with-F90)

> <https://github.com/Dhondtguido/CalculiX/issues/115>
>
> Vpzz says that the code in this files with f90 is then better readable.
> 
> VPZZ tr…anslated all F77 code to F90. This was made in 2023 with older Calculix than 2.22.
> 
> See 
> 
> https://github.com/vpzz/CalculiX-compatible-with-F90

> **Website: PrePromax is a gui for calculix for windows**
> 
> For the web site to external applications.  
> It is open source  
> See  
> [https://prepomax.fs.um.si/](https://prepomax.fs.um.si/)
> 
> It is based on net framework 4.8  
> [https://prepomax.fs.um.si/downloads/](https://prepomax.fs.um.si/downloads/)

> <https://github.com/Dhondtguido/CalculiX/issues/101>
>
> For the web site to external applications.
> It is open source 
> See 
> https://pr…epomax.fs.um.si/
> 
> It is based on net framework 4.8
> https://prepomax.fs.um.si/downloads/

> **Plug-in material: Crystal plasticity material and more for Abaqus available in github**
> 
> See  
> [https://github.com/TarletonGroup/CrystalPlasticity](https://github.com/TarletonGroup/CrystalPlasticity)  
> [https://github.com/zhfzzz/CPFEM-1](https://github.com/zhfzzz/CPFEM-1)  
> [https://github.com/KnutAM/MaterialModels](https://github.com/KnutAM/MaterialModels)
> 
> and much more materials and user elements for abaqus:
> 
> [https://github.com/jgomezc1/ABAQUS-US](https://github.com/jgomezc1/ABAQUS-US)  
> [https://github.com/ammarkh95/ABAQUS\_PDALAC](https://github.com/ammarkh95/ABAQUS_PDALAC)  
> [https://github.com/jpsferreira/UMAT-ABAQUS](https://github.com/jpsferreira/UMAT-ABAQUS)  
> [https://github.com/kkodagali/Puck-Failure-Criteria](https://github.com/kkodagali/Puck-Failure-Criteria)  
> [https://github.com/vineethravi2310/Puck-2D-UMAT-Subroutine](https://github.com/vineethravi2310/Puck-2D-UMAT-Subroutine)  
> [https://github.com/vineethravi2310/Cuntze-2D-UMAT-Subroutine](https://github.com/vineethravi2310/Cuntze-2D-UMAT-Subroutine)  
> [https://github.com/kranthibalusu/CrackGrowth](https://github.com/kranthibalusu/CrackGrowth)  
> [https://github.com/jpsferreira/UMAT-ABAQUS\_library](https://github.com/jpsferreira/UMAT-ABAQUS_library)  
> [https://github.com/irfancn/Abaqus-UMAT-viscoelastic](https://github.com/irfancn/Abaqus-UMAT-viscoelastic) (voigt)  
> [https://github.com/longbiscuit/DuncanEB-Abaqus6.14-5-UMAT-constative-model](https://github.com/longbiscuit/DuncanEB-Abaqus6.14-5-UMAT-constative-model)  
> [https://github.com/faisal-bhuiyan/Physics-based-composite-progressive-failure](https://github.com/faisal-bhuiyan/Physics-based-composite-progressive-failure)  
> [https://github.com/victorlefevre/UMAT\_Lefevre\_Sozio\_Lopez-Pamies](https://github.com/victorlefevre/UMAT_Lefevre_Sozio_Lopez-Pamies)  
> [https://github.com/vineethravi2310/Daimler-Camanho-2D-UMAT-Subroutine](https://github.com/vineethravi2310/Daimler-Camanho-2D-UMAT-Subroutine)  
> [https://github.com/happyhappysyr/Phase\_field\_ductile](https://github.com/happyhappysyr/Phase_field_ductile)  
> [https://github.com/InstituteOfMechanics/Thermomechanical\_Gradient\_Enhanced\_Damage\_UMAT](https://github.com/InstituteOfMechanics/Thermomechanical_Gradient_Enhanced_Damage_UMAT)  
> [https://github.com/awhelanUCD/Lemaitre-damage-UMAT-Public](https://github.com/awhelanUCD/Lemaitre-damage-UMAT-Public)  
> [https://github.com/Sina-Taghizadeh/UMAT\_Hyperelastic](https://github.com/Sina-Taghizadeh/UMAT_Hyperelastic)  
> [https://github.com/thealanjason/umat\_finite\_viscoelasticity](https://github.com/thealanjason/umat_finite_viscoelasticity)
> 
> [https://github.com/ahartloper/UVC\_MatMod](https://github.com/ahartloper/UVC_MatMod)
> 
> perhaps a simple adaptation possible of codes for calculix.

> <https://github.com/Dhondtguido/CalculiX/issues/100>
>
> Crystal plasticity material and more for Abaqus available in github
> See 
> https:/…/github.com/TarletonGroup/CrystalPlasticity
> https://github.com/zhfzzz/CPFEM-1
> https://github.com/KnutAM/MaterialModels
> 
> and much more materials and user elements for abaqus:
> 
> https://github.com/jgomezc1/ABAQUS-US
> https://github.com/ammarkh95/ABAQUS\_PDALAC
> https://github.com/jpsferreira/UMAT-ABAQUS
> https://github.com/kkodagali/Puck-Failure-Criteria
> https://github.com/vineethravi2310/Puck-2D-UMAT-Subroutine
> https://github.com/vineethravi2310/Cuntze-2D-UMAT-Subroutine
> https://github.com/kranthibalusu/CrackGrowth
> https://github.com/jpsferreira/UMAT-ABAQUS\_library
> https://github.com/irfancn/Abaqus-UMAT-viscoelastic (voigt)
> https://github.com/longbiscuit/DuncanEB-Abaqus6.14-5-UMAT-constative-model
> https://github.com/faisal-bhuiyan/Physics-based-composite-progressive-failure
> https://github.com/victorlefevre/UMAT\_Lefevre\_Sozio\_Lopez-Pamies
> https://github.com/vineethravi2310/Daimler-Camanho-2D-UMAT-Subroutine
> https://github.com/happyhappysyr/Phase\_field\_ductile
> https://github.com/InstituteOfMechanics/Thermomechanical\_Gradient\_Enhanced\_Damage\_UMAT
> https://github.com/awhelanUCD/Lemaitre-damage-UMAT-Public
> https://github.com/Sina-Taghizadeh/UMAT\_Hyperelastic
> https://github.com/thealanjason/umat\_finite\_viscoelasticity
> 
> https://github.com/ahartloper/UVC\_MatMod
> 
> perhaps a simple adaptation possible of codes for calculix.

> **Website: Mbsim uses Calculix for deformable calculations**
> 
> For webpage  
> External Software with use of Calculix with flexible bodies
> 
> See [https://www.mbsim-env.de/home/index.html](https://www.mbsim-env.de/home/index.html)

> <https://github.com/Dhondtguido/CalculiX/issues/96>
>
> For webpage 
> Mbsim uses Calculix for deformable calculations
> External Software w…ith use of Calculix with flexible bodies 
> 
> See https://www.mbsim-env.de/home/index.html

> **Plugin material: Thai-Wu and Hashin in 2D and 3D and Mazars umat available for abaqus in GitHub**
> 
> See
> 
> [https://github.com/marioruiarruda](https://github.com/marioruiarruda)
> 
> [https://github.com/marioruiarruda/Hashin\_3D\_UMAT](https://github.com/marioruiarruda/Hashin_3D_UMAT)  
> [https://github.com/marioruiarruda/Hashin\_2D\_UMAT](https://github.com/marioruiarruda/Hashin_2D_UMAT)
> 
> [https://github.com/marioruiarruda/Tsai-Wu\_2D\_UMAT](https://github.com/marioruiarruda/Tsai-Wu_2D_UMAT)  
> [https://github.com/marioruiarruda/Tsai-Wu\_3D\_UMAT](https://github.com/marioruiarruda/Tsai-Wu_3D_UMAT)
> 
> concrete damage model  
> [https://github.com/marioruiarruda/Mazars\_UMAT](https://github.com/marioruiarruda/Mazars_UMAT)
> 
> and a debugger for UMAT  
> [https://github.com/marioruiarruda/UMAT\_Debugger](https://github.com/marioruiarruda/UMAT_Debugger)
> 
> Perhaps a good extension in materials for calculix.
> 
> the Autor want only a declaration of his papers to his tools.  
> [marioruiarruda/Hashin\_3D\_UMAT#1](https://github.com/marioruiarruda/Hashin_3D_UMAT/issues/1)
> 
> I see for mazard best chance for fast adaption.  
> Thai-Wu and Hashin are for layered composite materials like GFK or CFK.  
> And layered 2D elements are not available in Calculix at internal Element level with classic layer theory.

> <https://github.com/Dhondtguido/CalculiX/issues/99>
>
> Plugin material: Thai-Wu and Hashin in 2D and 3D and Mazars umat available for a…baqus in GitHub 
> See 
> https://github.com/marioruiarruda
> 
> https://github.com/marioruiarruda/Hashin\_3D\_UMAT
> https://github.com/marioruiarruda/Hashin\_2D\_UMAT
> 
> https://github.com/marioruiarruda/Tsai-Wu\_2D\_UMAT
> https://github.com/marioruiarruda/Tsai-Wu\_3D\_UMAT
> 
> concrete damage model
> https://github.com/marioruiarruda/Mazars\_UMAT
> 
> and a debugger for UMAT 
> https://github.com/marioruiarruda/UMAT\_Debugger
> 
> Perhaps a good extension in materials for calculix.
> 
> the Autor want only a declaration of his papers to his tools.
> https://github.com/marioruiarruda/Hashin\_3D\_UMAT/issues/1
> 
> I see for mazard best chance for fast adaption.
> Thai-Wu and Hashin are for layered composite materials like GFK or CFK.
> And layered 2D elements are not available in Calculix at internal Element level with classic layer theory.

> **Plug-in material: Welding module**
> 
> There is a free project at GitHub with welding routine for abaqus  
> See  
> [https://github.com/cheneyjin/welding\_dflux\_subroutine](https://github.com/cheneyjin/welding_dflux_subroutine)
> 
> perhaps a simple Adaption is here possible for welding in calculix.

> <https://github.com/Dhondtguido/CalculiX/issues/95>
>
> There is a free project at GitHub with welding routine for abaqus
> See 
> https:/…/github.com/cheneyjin/welding\_dflux\_subroutine
> 
> perhaps a simple Adaption is here possible for welding in calculix.

---

<div class="post-metadata">

**Author:** ![Calc\_em](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Calc\_em](https://calculix.discourse.group/u/Calc_em)\
**Post date:** [March 16, 2026, 6:45am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/2 "2026-03-16T06:45:59Z")

</div>

Thanks for doing that, these posts were cluttering up the GitHub repository. I hope the future ones will also go here (perhaps the OP should join the forum and add more of his findings to a single thread).

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [April 17, 2026, 7:28pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/3 "2026-04-17T19:28:46Z")

</div>

there is a converter also for calculix in vmap converter toolkit. But the link is defect.

More info in free webinar of NAFEMS:

> **[Standardising Data Exchange for Virtual Engineering and AI Training webinar](https://www.nafems.org/events/nafems/2026/vmap-standard-standardising-data-exchange-for-virtual-engineering-and-ai-training/?utm_medium=email&utm_campaign=VMAP-Webinar-17Apr26&utm_content=VMAP-Webinar-17Apr26+CID_97edf64c7c40cb5ce02de466aa22f2d9&utm_source=campaign%20monitor&utm_term=Register%20for%20Free)**
>
> We will examine how VMAP serves as a neutral format for collecting and processing simulation results, as well as giving an overview of its current use at DLR.

More to VMAP see: link to calculix wrapper is defect.

> **[Tools – VMAP Standards Community e.V.](https://vmap-standard.org/Specifications/Supported-Tools/)**
>
> VMAP is a vendor-neutral standard for CAE data storage to enhance interoperability in virtual engineering workflows.

PDF: [https://vmap-standard.org/.cm4all/uproc.php/0/Events/2025/VMAP%20User%20Forum%2020205%20-%20Photos/Presentations/02\_VMAPUF\_WorkingGroupsOverview\_SCAI.pdf?cdp=a&\_=195b2f35798](https://vmap-standard.org/.cm4all/uproc.php/0/Events/2025/VMAP%20User%20Forum%2020205%20-%20Photos/Presentations/02_VMAPUF_WorkingGroupsOverview_SCAI.pdf?cdp=a&_=195b2f35798)

VMAP standard 1.2: pdf: it is an extended hdf5-format at first look

> **[VMAP\_Standard\_Specifications\_v120.pdf](https://vmap-standard.org/.cm4all/uproc.php/0/VMAP_pdfs/VMAP_Specs/VMAP_Standard_Specifications_v120.pdf?cdp=a&_=1919d5f1d93)**

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [April 28, 2026, 11:23am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/4 "2026-04-28T11:23:46Z")

</div>

FerriX is a academic clone of calculix in Rust to educational purpose

> **[GitHub - KwentiN-ui/FerriX: Educational FEA Solver in Rust, based on CalculiX](https://github.com/KwentiN-ui/FerriX)**
>
> Educational FEA Solver in Rust, based on CalculiX

The list of supported elements and keywords are very short in this project.

But perhaps a rust core is also the future in FEA-codes to control memory leaks and more.

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 5, 2026, 7:31am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/5 "2026-06-05T07:31:34Z")

</div>

See

> **[GitHub - AlexanderHuels/fem-docker: Docker-based FEM tooling for CalculiX workflows](https://github.com/AlexanderHuels/fem-docker)**
>
> Docker-based FEM tooling for CalculiX workflows

Long time Support With Ubuntu 24.04 LTS possible in next years.

In Roadmap Ubuntu 26.04 and extension to more tools in calculix universe.

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 5, 2026, 7:37am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/6 "2026-06-05T07:37:15Z")

</div>

See

> **[GitHub - WonhoLee1/WHT\_Calculixent](https://github.com/WonhoLee1/WHT_Calculixent)**
>
> Contribute to WonhoLee1/WHT\_Calculixent development by creating an account on GitHub.

Pyccx and pygccx are implemented with tetgen and some other tools.

Claude AI Agent

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 5, 2026, 7:44am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/7 "2026-06-05T07:44:22Z")

</div>

See

> **[GitHub - yannikmayerm/FE-Simulations: Finite element simulation workflows using...](https://github.com/yannikmayerm/FE-Simulations)**
>
> Finite element simulation workflows using LS‑PrePost, LS‑DYNA, and CalculiX. This repository showcases Python‑based automation for geometry parameterization (Blender), DOE/LHS studies, meshing, solver execution, post‑processing, and machine‑learning‑supported optimization pipelines used in computational engineering projects.

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 5, 2026, 7:47am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/8 "2026-06-05T07:47:11Z")

</div>

See

> **[GitHub - oscmw/CalculiX-works: working model files written for CalculiX](https://github.com/oscmw/CalculiX-works)**
>
> working model files written for CalculiX

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 5, 2026, 7:54am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/9 "2026-06-05T07:54:17Z")

</div>

Perhaps an idol for next steps in Development  
See

> **[GitHub - cool-japan/oxiphysics: Unified physics engine written in Rust, aiming to...](https://github.com/cool-japan/oxiphysics)**
>
> Unified physics engine written in Rust, aiming to replace Bullet, OpenFOAM, LAMMPS, and CalculiX.

Calculix is with others an idol for this new multiphysics package  
With rust core and about 60.000 tests from Japan.

And here the FEM part:

> **[oxiphysics/crates/oxiphysics-fem at master · cool-japan/oxiphysics](https://github.com/cool-japan/oxiphysics/tree/master/crates/oxiphysics-fem)**
>
> master/crates/oxiphysics-fem

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 13, 2026, 5:15pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/10 "2026-06-13T17:15:04Z")

</div>

See new project for workflow with calculix:

> **[GitHub - armpro24-blip/cad-cae-copilot: CAD/CAE Copilot — an AI-native CAD/CAE/CAX...](https://github.com/armpro24-blip/cad-cae-copilot)**
>
> CAD/CAE Copilot — an AI-native CAD/CAE/CAX workbench for AI agents. Text-to-CAD, text-to-CAE, real build123d/OpenCASCADE geometry, editable parameters, stable topology pointers, deterministic critique, and MCP server tools.

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 14, 2026, 3:33pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/11 "2026-06-14T15:33:26Z")

</div>

See

> **[GitHub - yvanblanchard/ProgressiveFailureOfCompositesWithCalculix: UMAT/VMAT User Subroutines for progressive failure...](https://github.com/yvanblanchard/ProgressiveFailureOfCompositesWithCalculix)**
>
> UMAT/VMAT User Subroutines for progressive failure of composites materials with Calculix FE solver

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 14, 2026, 4:19pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/12 "2026-06-14T16:19:38Z")

</div>

See free neural sound extension for calculix

Outperforming abaqus solution by factor 3

> **[GitHub - jiaqiwang969/NeuralSound-CalculiX](https://github.com/jiaqiwang969/NeuralSound-CalculiX)**
>
> Contribute to jiaqiwang969/NeuralSound-CalculiX development by creating an account on GitHub.

---

<div class="post-metadata">

**Author:** ![Durbul](https://avatars.discourse-cdn.com/v4/letter/d/8dc957/32.png) [@Durbul](https://calculix.discourse.group/u/Durbul)\
**Post date:** [June 17, 2026, 6:53am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/13 "2026-06-17T06:53:20Z")

</div>

5 posts were split to a new topic: [Abq2ccx input converter (Abaqus to CalculiX)](https://calculix.discourse.group/t/abq2ccx-input-converter-abaqus-to-calculix/4017)

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 14, 2026, 5:44pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/14 "2026-06-14T17:44:57Z")

</div>

See

> **[GitHub - yvanblanchard/CuringThermoSetWithCalculix: Porting curing process of thermoset materials...](https://github.com/yvanblanchard/CuringThermoSetWithCalculix)**
>
> Porting curing process of thermoset materials (using Abaqus subroutines) for Calculix open-source solver

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [June 21, 2026, 5:32pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/15 "2026-06-21T17:32:36Z")

</div>

In calculix linked other postprozessing tools it is perhaps made by developers.

FreeCAD tool is here with problems and must be recoded.

> <https://github.com/FreeCAD/FreeCAD/issues/20522>
>
> \### Is there an existing issue for this?
> 
> \- \[x\] I have searched the existing iss…ues
> 
> \### Problem description
> 
> Stress linearization (Asme VIII Div.2 5-A.4.1.2 or EN-13445) is a calculation on a tensor (all components in local coordinates referring to SCL: hoop, normal and tangential and not global because there's the need to take into account the right components and exclude some of them) and not on a vector (the code instead calculates formulas on an array (YAxis Data of the DataAlongLine that becomes sValues in the formulas)). An equivalent stress cannot be used as input, nor any other quantity taken individually beacuse the purpose is to calculate the tensor of membrane and bending and after that calculate the equivalent stresses of membrane, bending and membrane+bending in order to perfom the verifications.
> So the inputs must be all the six stress components and x,y,z of the points of line (also to perform the coordinate transformation).
> The outputs von Mises and Tresca of membrane, bending and membrane+bending and peak.
> If i'm not misunderstanding the code I suggest freezing the tool until it is rewritten in order to prevent people from using it.
> I suggest also to doublecheck the code and validate post-processing calculation tools (from several people) before insert it in stable versions of FreeCAD because FEM (and CFD) features are often not like those in CAD where "what i see is what i get".
> Thank you all.
> 
> \### Full version info
> 
> \`\`\`shell
> All versions since FEM stress linearization exists.
> \`\`\`
> 
> \### Subproject(s) affected?
> 
> FEM
> 
> \### Anything else?
> 
> \_No response\_
> 
> \### Code of Conduct
> 
> \- \[x\] I agree to follow this project's Code of Conduct

Code Aster includes a stress linearization tool with Salome Meca.  
So code and examples are here in possible access.  
https://www.youtube.com/embed/videoseries?list=PLvkU6i2iQ2frC7YB1A9Pqcfhwe9T3Vuy-&wmode=transparent&rel=0&autohide=1&showinfo=1&enablejsapi=1

And a 12 pages paper by a special part by IAEA:

> **[42109374.pdf](https://inis.iaea.org/records/tv7gd-jpp47/files/42109374.pdf)**
>
> 829.13 KB

free path analysis extension for Ansys:

> **[GitHub - tplobo/path-analysis: ANSYS extension package for computing and...](https://github.com/tplobo/path-analysis)**
>
> ANSYS extension package for computing and exporting stress and temperature analyses along linear paths

Seamplex with docu, code and scripts:

> **[On convergence of linearized stresses in an infinite pipe computed using the...](https://www.seamplex.com/docs/pipe-linearized/)**

> **[SP-FI-18-BM-B2BD.pdf](https://www.seamplex.com/docs/pipe-linearized/SP-FI-18-BM-B2BD.pdf)**
>
> 1936.82 KB

> **[Bitbucket](https://bitbucket.org/seamplex/pipe-linearize)**

Paraview tool with code Aster:

> **[GitHub - code-jacob/Stress\_Linearization\_with\_ParaView](https://github.com/code-jacob/Stress_Linearization_with_ParaView)**
>
> Contribute to code-jacob/Stress\_Linearization\_with\_ParaView development by creating an account on GitHub.

The paraview tool is perhaps here the best one to adapt.

---

<div class="post-metadata">

**Author:** ![Tkemeny86](https://yyz2.discourse-cdn.com/free1/user_avatar/calculix.discourse.group/tkemeny86/32/4394_2.png) [@Tkemeny86](https://calculix.discourse.group/u/Tkemeny86)\
**Post date:** [June 29, 2026, 2:50pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/16 "2026-06-29T14:50:40Z")

</div>

Hi Stefano, have you tried this paraview script?

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [July 9, 2026, 10:16pm UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/17 "2026-07-09T22:16:01Z")

</div>

See

> **[GitHub - clay-good/anvilate: Anvilate is an open-source, local-first design...](https://github.com/clay-good/anvilate)**
>
> Anvilate is an open-source, local-first design agent for mechanical engineers. Describe a part in plain English and receive a physics-validated, parametric STEP or DXF file that drops straight into CATIA, SolidWorks, NX, or AutoCAD, alongside the editable Python source code.

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [July 10, 2026, 8:31am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/18 "2026-07-10T08:31:43Z")

</div>

Subroutine to emulate curing  
Before available to abaqus.  
See

> **[GitHub - yvanblanchard/CuringThermoSetWithCalculix: Porting curing process of thermoset materials...](https://github.com/yvanblanchard/CuringThermoSetWithCalculix)**
>
> Porting curing process of thermoset materials (using Abaqus subroutines) for Calculix open-source solver

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [July 10, 2026, 8:36am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/19 "2026-07-10T08:36:34Z")

</div>

See c++20 implementation of calculix

Very interesting for education for the app generation and more

> **[GitHub - CyberdyneCorp/CalculixPP: Port to Modern C++ of CalculiX library](https://github.com/CyberdyneCorp/CalculixPP)**
>
> Port to Modern C++ of CalculiX library

---

<div class="post-metadata">

**Author:** ![Stefano4000](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@Stefano4000](https://calculix.discourse.group/u/Stefano4000)\
**Post date:** [July 10, 2026, 8:47am UTC](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827/20 "2026-07-10T08:47:07Z")

</div>

Tested with calculix 2.22 and FreeCAD 1.1 at windows 11  
See

> **[GitHub - StructuralWizard/beam-analysis-mcp: Lightweight Node.js MCP server for structural...](https://github.com/StructuralWizard/beam-analysis-mcp)**
>
> Lightweight Node.js MCP server for structural analysis of bridges and buildings: built-in 3D beam solver, CalculiX backend, FreeCAD export, parametric typology generators

[Next page](https://calculix.discourse.group/t/collected-posts-on-third-party-developments-examples-etc/3827.md?page=2)