Minimization of maximal von Mises stress in porous composite microstructures using shape and topology optimization

Strength-oriented optimization of porous periodic microstructures impacts on efficient design of load-bearing lightweight structures avoiding mechanical failure. In this work, the maximal von-Mises stress, predicted by homogenization theory on a planar representative unit-cell domain, is minimized using either shape or topology design changes. Plane stress and linear behaviour are assumed. Two benchmarks problems are revisited, bulk and shear...