Chapter 6 - Microlattice metamaterials

Abstract

Rapid development in 3D printing technology has stimulated enthusiasm in the functional design of metamaterials with unique properties, in which multiple properties should be simultaneously optimized. However, this is challenging because different properties, such as mechanical and mass-transport properties, are often coupled strongly and cannot be adjusted independently. In this chapter, we propose an anisotropy-inspired and simulation-guided microlattice metamaterial design strategy that realizes independent tailoring of the elastic response and fluid transport performances. In addition, inspired by the Hall-Petch relation, which indicates how one can independently tailor the strength and mass, we use a diamond configuration to construct microlattice metamaterials with decoupled mechanical and mass-transport properties to cater to artificial bone scaffolds.