Localized Load Effects in High-Order Bending of Sandwich Panels with Flexible Core

摘要: Localized load effects using a high-order theory for the bending behavior of sandwich panel with “soft” core (i.e., flexible) in vertical direction that is based on variational principles are presented. The embodies rigorous approach small-deformation analysis plates having owing to nonlinear patterns in-plane and deformations through its height. Thus, local an inherent part improve available classical theories. formulation details governing equations associated boundary conditions general construction unidentical skins made foam or aramid honeycomb. uses thin-plate three-dimensional elasticity core. presented terms internal resultants displacements skins, peeling shear stresses skin-core interfaces, stress displacement fields core, even vicinity localized loads. handles any type distinguishes among loads applied at different skins. A parametric study has been conducted simply supported identical subjected both concentrated middle transversely flexible, stiff distributed square region various dimensions aspect ratios fully uniform modulus skin (in direction).