21109 初期不整を有するクロスプライ積層曲面板の二軸圧縮座屈後の挙動解析(材料力学(複合材料))

概要

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Because of their high specific strength and stiffness, fiber-reinforced plastics is used as structural members in various fields, and hence analysis of thin laminated structures is important. Postbuckling behaviors of laminated plates under axial compression have been discussed by many researchers. However, little research has been performed on the postbuckling behavior of laminated curved plates. In this paper, the stability condition of CFRP cross-ply laminated curved plates under biaxial compression and which are simply supported along four edges is determined using Galerkin's method. The postbuckling behavior is proven analytically, and the effects of various factors, such as the dimension of the curved plate, biaxial compressive ratio, deflection pattern, average axial shortening and amplitudes of initial imperfections, are clarified.
社団法人日本機械学会の論文
2005-03-17