組合せ負荷を受ける複合材料積層円筒殻の座屈簡易計算法

概要

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Advanced fiber-reinforced composite materials have been used for structural members in various fields, because of their high specific strength and stiffness. In general, laminated cylindrical shells behave differently from homogeneous orthotropic cylindrical shells due to their anisotropy and unsymmetric lamination. In the present paper, the buckling problems of carbon fiber/epoxy (CFRP) cross-ply and angle-ply laminated cylindrical shells subjected to combined external pressure and torsional loads are considered. That is, the effects of stacking sequence, number of layers, lamination angle, buckling modes, load ratio and dimension of cylinders, on the buckling value are analysed by assuming the buckling patterns which satisfy the equilibrium equation based on the Donnell-type expressions.
東海大学の論文