A 3D surface and volumetric mesh generator for MATLAB/Octave
PySCeS Constraint Based Modelling
Fortran library with the Abaqus user material subroutines UMAT/VUMAT
Advanced numerical instruments: adaptive meshing, FE methods, solvers
A collection of lecture notes and accompanying code on micromechanics
LIME is a software tool for creating multiphysics simulation codes.
A finite element solver using state-of-the-art programming techniques.