TRUSS TYPE PERIODIC CELLULAR MATERIALS HAVING POLYHEDRONS OR SPHERES IN THEIR INTERNAL VACANCIES AND A MANUFACTURING METHOD OF THE SAME

摘要

PURPOSE: A truss type periodic cellular material and a method of manufacturing the same are provided to improve energy absorption force due to structural stability and deformation. CONSTITUTION: A method of manufacturing truss type periodic cellular material comprises the following steps of: weaving or cross-placing a wire(21) and forming a two-dimensional plane of a net shape with plural holes; placing polyhedron or sphere filler(31) on a part of plural holes formed on the two-dimensional plane; laminating the two-dimensional plane with layers; forming a 3D truss structure(11) by weaving the two dimensional plane with wire; and welding the polyhedron or the sphere filler and the wire respectively or to each other.