Swap mechanical variables out for thermal properties. Change displacements ( ) to temperatures (
Implementing plasticity requires iterative solution strategies such as the return mapping algorithm. The GitHub repository provides a complete set of MATLAB functions for 3D plasticity. It includes bmatHex8.m (the strain‑displacement matrix for an 8‑node hexahedron), returnMap.m (which performs the radial return algorithm for von Mises plasticity), and globTanStiff.m (which assembles the global tangent stiffness matrix). For 2D problems, the F2D code on the File Exchange supports isotropic and orthotropic materials with damage and plasticity, as well as an arc‑length algorithm for post‑critical analysis. matlab codes for finite element analysis m files
Ensure that the external work done on the system ( ) matches the internal strain energy ( Swap mechanical variables out for thermal properties