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FEDEM Solvers

Fedem Logo

Welcome to FEDEM! - Finite Element Dynamics of Elastic Mechanisms.

About this project

This project contains the Fortran source code of the FEDEM solver modules. In addition, the PythonAPI folder contains the source code of the Python package fedempy, which enables the use of python to control execution of the FE Part Reducer and Dynamics Solver, as well as creating new models and/or editing existing ones by scripting.

This project also uses elements from the fedem-foundation project, which is consumed as a submodule by this repository. It also uses the SAM library.

The FEDEM GUI application, which also can be used to control the solvers and to post-process their results, is maintained in a parallel project fedem-gui.

Refer to our web page openfedem.org for overall information on the FEDEM project.

Requirements and Setup

See BUILD.md for detailed information on building and testing. Notice the regression tests for the Dynamics Solver are maintained in a separate repository fedem-solver-tests, which also is consumed as a submodule by this repository. Therefore, make sure you get all submodules resolved when cloning this repository, e.g.:

$ git clone --recurse-submodules [email protected]:SAP/fedem-solvers.git

Contributing

This project is open to feature requests, suggestions, bug reports, etc., via GitHub issues. Contributions and feedback are encouraged and always welcome. For more information about how to contribute, see our Contribution Guidelines.

Security / Disclosure

If you find any bug that may be a security problem, please follow our instructions at in our security policy on how to report it. Please do not create GitHub issues for security-related doubts or problems.

Code of Conduct

We as members, contributors, and leaders pledge to make participation in our community a harassment-free experience for everyone. By participating in this project, you agree to abide by its Code of Conduct at all times.

Licensing

Copyright 2023 SAP SE or an SAP affiliate company and fedem-solvers contributors. Please see our LICENSE for copyright and license information. Detailed information including third-party components and their licensing/copyright information is available via the REUSE tool.

fedem-solvers's People

Contributors

ajinkyapatil8190 avatar kmoks avatar kmokstad avatar misappi avatar ospo-bot[bot] avatar sap-ospo-bot avatar

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Forkers

norcompute kmoks kmokstad core-marine-dev

fedem-solvers's Issues

RBE3 elements with full rotation coupling seems to give incorrect results

A hollow beam model (rectangular box profile) is modelled with 4-noded shell elements with RBE3 elements in both ends for boundary conditions and applied load (see attached model SAPPEI-3754.zip . The deformations appears too large when also the rotations are coupled in the RBE3 spiders. If only translations are coupled (which used to be the default in NX before), the response looks more normal. Full rotation coupling in RBE3 is not tested much in Fedem, so we suspect an implementation bug. This should be verified.

image

This was first reported in the Jira issue EPDQUALITY-70 for Connected Products, and is reproduced here for Open FEDEM.

Build error on Project: response_pos_frs

Hi,

Trying to build under Win 10. Got this error:

ResponsePos - 0 error(s), 0 warning(s) 32>------ Build started: Project: response_pos, Configuration: Release x64 ------ 32>Building Custom Rule D:/FEDEM/fedem-solvers/src/vpmSolver/ResponsePos/CMakeLists.txt 32>main.C 32>response_pos.vcxproj -> D:\FEDEM\fedem-solvers-build\src\vpmSolver\ResponsePos\Release\response_pos.exe 33>------ Build started: Project: response_pos_frs, Configuration: Release x64 ------ 33>Generating response_pos.frs 33>C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(249,5): error MSB8066: Custom build for 'D:\FEDEM\fedem-solvers-build\CMakeFiles\fe5cf4962b8aceb1b110445e1fd8f087\response_pos.frs.rule;D:\FEDEM\fedem-solvers-build\CMakeFiles\84d5b55a1b2e38382f8479d3e18fabdb\response_pos_frs.rule;D:\FEDEM\fedem-solvers\src\vpmSolver\ResponsePos\CMakeLists.txt' exited with code -1073741515. 33>Done building project "response_pos_frs.vcxproj" -- FAILED. 34>------ Build started: Project: ALL_BUILD, Configuration: Release x64 ------

Thanks for help.

Cheers

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