A BESO-XFEM hybrid enables multi-resolution topology optimization by defining design variables on enriched nodes, using sub-region material models, and solving equilibrium on coarse elements with adjoint sensitivities.
Generating optimal topologies in structural design using a homogenization method, Computer Methods in Applied Mechanics and Engineering 1988;71(2):197-224
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An efficient evolutionary structural optimization method for multi-resolution designs
A BESO-XFEM hybrid enables multi-resolution topology optimization by defining design variables on enriched nodes, using sub-region material models, and solving equilibrium on coarse elements with adjoint sensitivities.