A Fully Discretized Nonlinear Finite Strip Formulation for Pre-Buckling and Buckling Analyses of Viscoelastic Plates Subjected to Time-Dependent Loading

作者：Amoushahi Hossein; Azhari Mojtaba; Heidarpour Amin^*

来源：Mechanics of Advanced Materials and Structures, 2015, 22(8): 655-669.

DOI：10.1080/15376494.2013.828820

• viscoelastic plates
• finite strip method
• time-dependent loads
• local buckling
• Prony series

A semi-analytical fully discretized finite strip method is developed to investigate the pre-buckling and local buckling of viscoelastic plates with different boundary conditions subjected to time-dependent loading. The mechanical properties of the material are considered to be linear viscoelastic by expressing the relaxation modulus in terms of Prony series. The fully discretized finite strip equations are developed using a two-point recurrence formulation, which leads to a computationally superior formulation. Time history of maximum deflection of plates with different end conditions is calculated. The effects of thickness, length of plate, and transverse loading on critical buckling load are also studied.

• 出版日期2015-3