BENDING OF THREE-LAYER PLATES WITH A RIGID FILLER ON ELASTIC BASE
DOI:
https://doi.org/10.20535/2305-9001.2012.64.44358Keywords:
bending, three-layer plate, the rigid filler, the elastic baseAbstract
Sandwich plates are widely used in various branches of industry. Thus, the calculation of sandwich structures under static loads is an actual task. Elastic rectangular sandwich plate with uncompressible filler lying on elastic foundation is considered. Kirchhoff’s hypotheses are accepted for description of base layers kinematics. The foundation reaction is described by Winkler’s model. The presence of rigid diaphragm impeding the relative shift of layers is presumed on the contour of the plate. The variational Lagrange’s principle is used for receiving differential system of equilibrium equations. The numerical calculation of th sandwich plate finite element package Femap-NASTRAN. Was determined by the dependence of bending stiffness of the base. Were given advice on the choice of stiffness on the deflection. The analytical solutions of the problem have been found and their numerical analysis has been conductedReferences
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