組合せ負荷を受ける繊維強化積層板の座屈強度に及ぼす積層構成の影響

概要

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Advanced fiber-reinforced laminated composite materials have been used for structural members in aeronautical and astronautical fields, because of their high specific strength and stiffness. In general, laminated composite plates exhibit the effect of lamination constitution due to the anisotropy and unsymmetry of the lamination. Thus, they behave differently from homogeneous orthotropic ones. In present paper, such the effects of lamination constitution on the buckling strength in the cross-ply and angle-ply laminated thin plates subjected to shear and compression combined loading are considered. That is, the effects of stacking sequence, number of layers, lamination angle, plate aspect ratio, and load ratio on the buckling stresses are analysed by use of the Galerkin method. The buckling stresses are found to decrease in both cross-ply and angle-ply laminated plates in antisymmetric cases in every load ratio when N=2 in which N means number of layers.
東海大学の論文