Bending behavior of sandwich structures with flexible functionally graded core based on high-order sandwich panel theory

摘要: In this study the problem of a sandwich beam with functionally graded (FG) core is attended use higher order panel theory forcing no pre-determined assumptions setting limits to displacement and stress fields in core. Face-sheets are analyzed using classical subjected elasticity formulation. Governing equations boundary conditions derived principle virtual displacements governing based on five primary variables solved Navier’s solution. This method yields nonlinear patterns as result it can manage present localized effects including change thickness under load point which an improvement previous theories. handle any type loadings distributed or concentrated also even when at same edge, upper lower face-sheets do not have conditions. The solution compared literature for conventional results indicate positive FG reduce possibility delamination structure interfaces between