圧縮負荷を受ける複合材料積層板の座屈強度

概要

論文の詳細を見る
Because of their high specific strength and stiffness, fiber-reinforced plastics have been used as structural members in various fields, and hence analysis of thin laminated structures is important. Postbuckling behaviors of thin laminated plates under uniaxial compression have been discussed by many researchers. However, little research has been performed on the secondary buckling phenomenon for thin laminated plate which occurs with further increase of load. In this paper, the stability condition of CFRP cross-ply laminated plates under uniaxial compression which are simply supported along four edges is determined, using the second variation of total potential energy. The necessity of secondary buckling is proven analytically, and the effects of various factors, such as number of layers, deflection pattern and average axial shortening, are clarified.
一般社団法人日本機械学会の論文
1992-09-25