Topology Optimization of Porous Lattice Structures for Orthopaedic Implants

摘要

Porous lattice structures are finding increasing applications across a variety of scenarios, including industrial and medical uses which require precise structural characteristics such as stiffness, porosity, volume fraction and surface area. In many cases, a non-uniform distribution of these properties may be required to suit design requirements or to match in-vivo conditions in biomedical applications. In these situations, the design of the porous lattice can be quite complex due to competing objectives from the various distributed structural characteristics. Here we present an optimized structural design methodology that relies on global objective functions for effective stiffness, porosity, volume fraction and surface area.