Finite Element Analysis

Models complex structures for stress, modes, and buckling.

Class D
FEA
Stress
Modal
Stiffness

What this expert provides

The Finite Element expert models structures that need more than hand calculations (static stress and deflection, natural frequencies, buckling, transient response and hot-spot stress) and traces every number to its model, inputs and checks.

Expert Profile

With no package named, it builds an open-source model (CalculiX, OpenSeesPy or scikit-fem) that AI-PNA runs, then adopts each result only if it agrees with a hand check within 5% and the reactions balance the load within 1%. With a commercial package named (ANSYS, Nastran, LS-DYNA and others) it writes that package's deck, which is never run here, and runs an equivalent open-source model as an independent check. Models and decks are saved to your connected storage.

Key Capabilities

  • Linear and non-linear static stress/deflection modelling
  • Natural frequencies, mode shapes, and mass participation
  • Linear and non-linear buckling factors
  • Hot-spot stress extraction for fatigue
  • Submodelling and mesh convergence verification
  • Open-source runs by AI-PNA (CalculiX, OpenSeesPy, scikit-fem) with adopt-or-reject checks