面外せん断変形を考慮した複合材料積層板の二軸圧縮座屈解析

概要

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The buckling analysis of laminated composite plates compressed in two perpendicular directions is presented by using the pb-2 Ritz functions, which consist of the product of a basic function and a two dimensional polymial function. The out-plane shear deformation is also taken into consideration in this analysis. It is shown that the convergence of solutions for the buckling load is good when the number of polynomials is more than 20. Numerical results are obtained for cross-ply and angle-ply laminated composite plates compressed in two perpendicular directions. The effects of material properties, plate aspect ratio, number of layers and lamination angle on buckling load are also investigated under simple supported, clamped edges and combined edge conditions. It is shown that the presented method considering the out-of-plane shear deformation can be widely used to analyze the buckling behavior of composite plates with general boundary conditions.
社団法人日本材料学会の論文
1997-12-15