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Abstract

An analytical solution of the deflection of the sandwich twist specimen based on first-order shear deformation theory is presented. The solution utilizes a Fourier series approach for the loading and displacements. Parametric analysis of the influences of face and core stiffnesses, core thickness and panel in-plane size on the plate compliance is conducted. The results are compared to finite element analysis. The first-order shear deformation compliance results are in good agreement with finite element analysis for sandwich panels with soft, shear deformable cores, whereas for stiff cores the first-order shear deformation solution underpredicts the panel compliance. Reasons for the discrepancy and limits for the use of the analysis are discussed.

Keywords

sandwich plate twist shear deformation theory finite element analysis

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First-order shear deformation analysis of the sandwich plate twist specimen

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