New Free Python Tool Lets Engineers Stress-Test Any Shape
Could make testing bridges and car parts faster, safer and cheaper to design.
Researchers presented PoliVEM, a software framework for the Virtual Element Method in computational solid and structural mechanics. It pairs a C++17 computational core with a Python interface, placing one-dimensional beams, two- and three-dimensional elasticity, axisymmetric elasticity, transient diffusion, and finite-strain hyperelasticity in a common implementation. The framework stores vertex, edge, face, and cell degrees of freedom in one hierarchy and retains the consistency–stabilization split at the element level. Its numerical infrastructure includes polygonal and polyhedral mesh input, higher-order entity numbering, cached projection operators, static condensation, coloured sparse assembly, linear solver selection based on the matrix structure, an incremental Newton method with line search and regularization, and explicit and implicit time integration. Three numerical experiments verify the common core for the beam and two- and three-dimensional elasticity formulations. The authors identify the scaling of high-order polynomial bases on anisotropic cells and the memory required by sparse direct factorizations as the main limitations of the current implementation.
- PoliVEM is free, open research software that lets computers simulate how solid objects bend and break
- It handles odd-shaped pieces — curves, holes, jagged edges — that trip up traditional simulation tools
- Big, highly detailed models can run out of computer memory, so it's not yet a plug-and-play product
Why It Matters
Cheaper, more accurate stress testing can mean safer products and faster, less expensive design cycles.