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

摘要

The present invention provides a truss type periodic cellular material, in which internal vacancies are filled with polyhedral or spherical fillers, and a method for manufacturing the same. In the present invention, the internal vacancies of the truss structure are filled with fillers, such as metal, ceramic or synthetic resin, which have high strength but are difficult to form in a large volume inherently. Accordingly, the buckling of the truss elements, which might easily occur when they are exposed to external compression or shear load, can be effectively prevented, so that the periodic cellular material has high strength and strain energy absorption.