Sandwich plate with sandwich-core using pyramidal truss-structure, and its manufacturing method

摘要

invention pyramidal truss structure using the sandwich plate and its production method as the related , more particularly, is the bending and bending , and plate , and align the truss structure of the joint working on a pyramid shape and medium to large lightweight sandwich plate and its manufacturing method of manufacturing the junction with the upper and lower outer plates . According to the present invention , has a radially extending leg of the down quadrangular pyramid shape , a pyramidal truss structure having an isotropic stress ; And the two plates are arranged side by side at a lower portion thereof; include , and the pyramidal truss sandwich is placed on a plate surface of the structure is a number between the two plates between the two supporting plates such that the predetermined distance and the type plate provides a method for manufacturing . ;