The Computation of Martensitic Microstructure with Piecewise Laminates
Journal of Scientific Computing
A regularized mesh transformation method for the computation of crystalline microstructures
Mathematical and Computer Modelling: An International Journal
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Many physical materials of practical relevance can attain several variants of crystalline microstructure. The appropriate energy functional is necessarily nonconvex, and the minimization of the functional becomes a challenging problem. A new numerical method based on discontinuous finite elements and a scaled energy functional is proposed. It exhibits excellent convergence behavior for the energy (second order) as well as other crucial quantities of interest for general spatial meshes, contrary to standard (non-)conforming methods. Both theoretical analyses and numerical test calculations are presented and contrasted to other current finite element methods for this problem.