Hi,

I am looking for a modular FEM package or bundle of tools each of whose components can be taken out and substituted with a custom piece of software for the purpose.

Specifically, I am doing research on iterative solvers and I need a test bed for it. What I am after is something along the lines of Geometry modeller (optional) -> Boundary condition/Load processor -> Meshing routine (different element types ideally) -> Solver -> Post-processor. At every step "->" information from the modules should be exportable in some format and importable to the next module. In my particular case, I want to run the above pipeline up to and including the Meshing step, export assembled global matrices and load vectors and use them to get displacements from the custom solver I work on. These displacements, formatted appropriately should then go the Post-processor module to get stresses, strains, etc.

Some people have suggested HyperMesh for meshing and matrix generation and HyperGraph for postprocessing, but I wanted to ask for opinions before diving into it head first.

Any suggestions are more than welcome!