Post-Bucking Behavior of the Clamped Orthotropic Shallow Conical Shell 
under Uniformly Distributed Pressure
Wang Xiaogang  Xu Xing
(Department of Civil Engineering, Qinghai University, Xinning, 810016)

Abstract: Based on Karman nonlinear equations, post-buckling behavior of the clamped orthotropic shallow conical shell under uniformly distributed pressure is studied. By means of the modified iteration method, the approximate formulas of the second degree for load-deflection and critical load are obtained, and using these fomulas the numerical results as l²=0.6   1.4 and 1.8 are calculated.
Keywords: orthotropic shallow conical shell, post-buckling, the modified iteration method.