ARCHITECTED MATERIALS FOR ENHANCED ENERGY ABSORPTION

摘要

A three-dimensional lattice architecture with a thickness hierarchy includes a first surface and a second surface separated from each other with a distance therebetween defining a thickness of the three-dimensional lattice architecture; a plurality of angled struts extending along a plurality of directions between the first surface and the second surface; a plurality of nodes connecting the plurality of angled struts with one another forming a plurality of unit cells. At least a portion of the plurality of angled struts are internally terminated along the thickness direction of the lattice structure and providing a plurality of internal degrees of freedom towards the first or second surface of the lattice architecture.

主权项

1. A three-dimensional lattice architecture with a thickness hierarchy, comprising:
a first surface and a second surface separated from each other with a distance therebetween defining a thickness and a thickness direction of the lattice architecture; and a plurality of lattice structures stacked on one another in the thickness direction forming an interface in between, wherein a set of unit cell parameters of a lattice structure of the plurality of lattice structures is different from a set of unit cell parameters of a neighboring lattice structure.