BUCKLING ANALYSIS OF STRINGER STIFFENED COMPOSITE CYLINDER

Abstract

Buckling, a distinguished word appears in the most failure case of the more sensitive applications such as cylinder. Buckling analysis presents the most important once in which huge helpful information (the failure modes, types of failure, and critical failure load respectively) must be taken in the considerations in the design of any structure. In this paper, buckling analysis was done on stiffened composite cylindrical shell to obtain the critical load and modes of failure under different conditions. The mathematical formulation of the problem was achieved by the ANSYS (Analysis System) finite element program. Effects of some parameters (fiber orientation, skin thickness, and elastic material properties) were studied. A numerical program includes all above features written in APDL (Ansys Parametric Design Language) was achieved.