Fixing nonlinear FEM simulations that fail
I help engineers analyze and fix nonlinear FEM simulations that fail under large deformation, contact, and real-world conditions.
I develop numerical methods and computational tools focused on robustness under extreme deformation, where standard FEM approaches typically break down.
Why this matters
Most FEM simulations work well in controlled examples, but fail under real industrial conditions:
- Nonlinear contact instability and convergence failure
- Large plastic deformation and mesh distortion
- Numerical divergence in implicit formulations
- Unstable behavior in forming and manufacturing processes
The focus of my work is understanding and improving robustness in these scenarios.
What I do
- Debugging and improving nonlinear FEM simulations
- Material modeling for plasticity and large deformation
- Contact stability and convergence analysis
- Remeshing strategies for distorted meshes
- Development of explicit and implicit FEM solvers (CPU / GPU)
Tools and workflows
I am developing a lightweight FEM GUI and custom solvers to reduce friction between model setup, material definition, simulation, and post-processing.
- Model creation and visualization
- Mesh-based sets for boundary conditions and exporters
- Python scripting for reproducible workflows
- Abaqus export for validation and interoperability
- Material curve visualization for nonlinear simulations
These tools are not the final product, but part of a broader workflow to understand, debug, and improve nonlinear FEM simulations.
Projects
The main development projects are documented in a dedicated section with separate pages for each solver or tool.
- WeldFormGUI for preprocessing, postprocessing, exporters, and workflow automation
- WeldFormFEM for explicit and implicit large-deformation FEM development
- WeldFormSPH for particle-based solid mechanics and forming simulation
- ReDynELA for adaptive remeshing-oriented FEM experimentation
Work with me
If your FEM simulation is not converging or behaving as expected, I offer focused 1:1 technical sessions.
- Convergence and divergence issues
- Material definition and plasticity models
- Contact instability
- Large deformation setups
Resources
I share development notes, experiments, and implementation insights in computational mechanics:
- Technical Blog
- Publications and conference papers
- Benchmarks and validation cases
- Project pages and solver overviews
- GitHub repositories
- YouTube channel
- External resources
Technical Blog
I publish development notes, research experiments, and implementation details related to FEM solvers and industrial simulation problems.