Axisymmetric post-buckling behavior of saturated porous circular plates: Fid-Bau Portal

Axisymmetric post-buckling behavior of saturated porous circular plates

Feyzi, M.R. / Khorshidvand, A.R.

AbstractThis study aimed to investigate axisymmetric post-buckling behavior of a circular plate made of porous material under uniformly distributed radial compression with simply supported and clamped boundary conditions. Pores are saturated with fluid and plate properties vary continuously in the thickness direction. Governing equations are obtained based on classical plate theory and applying Sanders nonlinear strain-displacement relation. Shooting numerical method is used to solve the governing equations of problem. Effects of porosity coefficient, pore distribution, pore fluid compressibility, thickness change and boundary conditions on the post-buckling behavior of the plate are investigated. The results obtained for post-bucking of homogeneous/isotropic plates and critical buckling load of porous plates are compared with the results of other researchers.

Highlights•Post-buckling of porous circular plates under mechanical loading is investigated.•Pores are saturated with fluid and plate properties vary continuously in thickness direction.•The problem is presented in two different cases: load given and deflection given.•Governing equations are solved numerically by using shooting method with Newton iteration.•Effects of plate porosity, pore distribution, pore fluid compressibility, thickness change and boundary conditions are studied.