A novel design methodology for heterogeneous beam-based lattices

This thesis presents a novel framework for the design of 3D-printed components with optimized lattice infill. The approach is based on beam-based cubic unit cells with octahedral symmetry, organized into three distinct classes that allow smooth transitions between topologies while preserving structural connectivity and printability. A finite element implementation of asymptotic homogenization is employed to characterize the effective linear elastic and thermal properties of the generated lattices, while a novel optimization scheme is introduced to enable reduced-order optimization.