Authors: Christian Frier Hvejsel Erik Lund
Publish Date: 2011/01/27
Volume: 43, Issue: 6, Pages: 811-825
Abstract
This paper presents two multimaterial interpolation schemes as direct generalizations of the wellknown SIMP and RAMP material interpolation schemes originally developed for isotropic mixtures of two isotropic material phases The new interpolation schemes provide generally applicable interpolation schemes between an arbitrary number of predefined materials with given anisotropic properties The method relies on a large number of sparse linear constraints to enforce the selection of at most one material in each design subdomain Topology and multimaterial optimization is formulated within a unified parametrization
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