A package for binary and continuous, single and multi-material, truss and continuum, 2D and 3D topology optimization on unstructured meshes using automatic differentiation in Julia.
While trying to come up with a way of generating random FEA problems and running topological optimization on them, I ran into a strange issue. Sometimes, judging by the von Mises field, the 2 loads applied seem to have swapped their positions (see figure below). And less frequently the von Mises field doesn't seem to be related to the initial FEA problem at all.
mohamed82008
commented
2 years ago
While trying to come up with a way of generating random FEA problems and running topological optimization on them, I ran into a strange issue. Sometimes, judging by the von Mises field, the 2 loads applied seem to have swapped their positions (see figure below). And less frequently the von Mises field doesn't seem to be related to the initial FEA problem at all.
The attached zip contains the sufficient files to reproduce the problem.