Thermal–mechanical metamaterial analysis and optimization using an Abaqus plugin

Abstract This paper demonstrates how commercial finite-element software and optimization algorithms can be combined to fully explore the design space of thermal–mechanical metamaterials reveal trends new insight. is achieved by developing an Abaqus plugin (EasyPBC) that automates application periodic boundary conditions computes effective elastic thermal expansion properties for 2D 3D problems. then linked optimizer optimal trade-off between mechanical two example metamaterials. The first a auxetic star-shaped metamaterial, where proposed approach used create envelope Poisson’s ratio coefficient solving series constrained second metamaterial based on octet truss, with additional members expand space. A multi-objective problem solved find Young’s modulus in prescribed direction. results both examples our knowledge about range these metamaterials, designs properties.