Abstract
This paper deals with reliability analysis of a FRP sandwich plate subjected to a lateral pressure load. Parameters such as an applied transverse lateral pressure load, elastic moduli, geometric and ultimate strength values of the plate are treated as basic design variables; a specific probability distribution is applied to them to take into account their variability nature. The plate strengths are calculated using simplified higher-order shear deformation theory, which can calculate the through-thickness deformations of the plate accurately. The limit state equations are developed from maximum stress, maximum strain, Tsai-Hill, Tsai-Wu and Hoffman failure criteria. Calculated probabilistic plate strengths and the generated random values of the ultimate strength basic design variables are substituted into the developed limit state equations to define the failure or survival state of the plate. In defining the safety of the plate, Monte Carlo simulation method is employed.
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