WeldFormFEM is a FREE Opensource Updated Lagrangian Explicit Finite Element Method (FEM) CPU/GPU based solver.
It uses reduced integration tetra and constant stress tetra with locking correction. This can be used as an alternative to LS-Dyna, Abaqus & OpenRadioss for solid elements un contact with rigid surfaces, without Remeshing Yet.
WeldFormFEM is aimed to solve solid mechanics large strain problems, such as metal forming.
The idea is to work via 2 different solvers: 1 - Pure lagrangian with rezoning (adaptive mesh refinement or AMR), Work In Progress as first option
2 - Coupled Eulerian (fixed mesh or Arbitrarian Eulerian Lagrangian) Lagrangian solver based on Benson works.
WeldFormFEM works both on Ubuntu and Windows. you can select to build it to CPU and GPU only by changing a single CMAKE var.
Prepost is Made with LS-Prepost and Postprocess with paraview.
Features
Structure Of Arrays (SOA) data arrangement which allows fast CUDA accesing
Explicit time integration
C++/CUDA CPU/GPU(WIP) Architectures
Constant Stress Tetra/Triangle Element with Average Nodal Pressure (ANP) for volumetric locking fixing
Reduced Integration Hexaheadra with viscous hourglass control
OpenMP (WIP) CPU parallelization
Contact algorithm (WIP)
Automatic Remeshing (rezoning) (WIP)
2D Plain Strain/Axisymm & 3D
Thermal-Mechanical coupling (WIP)
Note: Thumbnail created using AI assistance and further customized manually.
00:00: Intro
00:16: Solver Description
00:51: LS-Prepost Hexa Mesh Without geometry
03:16: LS-Prepost Tet Mesh From geometry
06:05: Run first hexa element model
09:03: Run tetra model
10:10: Pressure Obs in tetra element
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