C2. Why performing non-linear calculations

C2. Why performing non-linear calculations

As in many areas of physics, it is only reasonable to undertake a non-linear calculation after having a good idea of the "end of the story". In other words, how the structure will evolve until it becomes unstable. Below are presented the good and more questionable reasons for undergoing non-linear calculations.

  1. Good reasons

These procedures are reasonable, because:

  1. Questionable reasons

Those motivations often end up leading to non-convergence or “zero-pivot” problems. When the calculation is interrupted at a given stage of the iterative process, the deformation of the structure (given by the deformation of the mesh, or the strain field) is misleading:



Révision #2
Créé 19 September 2023 09:43:06 par Paul Terrasson Duvernon
Mis à jour 10 October 2023 09:29:26 par Paul Terrasson Duvernon