Development of Integral Molding Method and Evaluation of the Axial Nonlinear Compressive Properties of CFRP Cylindrical Shells Reinforced with Isogrid

摘要

Isogrid structures have a higher specific strength and stiffness and they are composed of triangular grid stiffeners and a face layer. They are being mainly used for aerospace structures. In order to produce a metal isogrid cylindrical shell, a majority of thick metal plate is cut to produce the isogrid panel and its both ends are welded to other ones after they are bended. In this paper, compressive properties of CFRP isogrid cylindrical shell are shown and the results of compressive experiments are compared with ones obtained by FEM.