Nonlinear dynamic stability of functionally graded cylindrical shells under step loads

作者：Huang, Huai-Wei^*; Han, Qiang

来源：Journal of South China University of Technology(Natural Science Edition), 2009, 37(12): 132-139.

• Cylindrical shell
• Dynamic buckling
• Dynamic buckling criteria
• Dynamic buckling load
• Dynamic equilibrium equation
• Nonlinear dynamic buckling
• Nonlinearity
• Structural deformation

This paper deals with the nonlinear dynamic buckling of functionally graded cylindrical shells under axial and lateral step loads.In the investigation,a nonlinear dynamic equilibrium equation is deduced using an energy method and is then solved by means of the four-order Rugge-Kutta method with various step lengths.Thus,the response curves of the shell structure are derived,which are combined with the B-R dynamic buckling criterion to determine the critical buckling condition.Numerical results show that(1) ...

• 出版日期2009-12
• 单位华南理工大学