K-0417 衝撃軸圧縮を受けるアングルプライ積層円筒殼の動的安定解析(G03-12 衝撃)(G03 材料力学部門一般講演)

概要

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This paper deals with the probrem of dynamic stability of angle-ply laminated cylindrical shells under impact axial compression. First, the axially symmetric motion of the shell is imposed by the impact axial compression. Subsequently, certain perturbations are superimposed on this motion, and their behavior sequential with time is investigated. The symmetric state of motion of the shell is considered to be stable if the perturbations remain bounded. The solutions for the prebuckling motion and the perturbated motion are obtained by the use of Galerkin's method. Stability regions are examined by utilizing Mathieu's equation. The inevitability of dynamically unstable behaviors is proved analytically and the effects of various factors, such as compressive load ratio, lamination angle and dynamic unstable mode, are clarified.
一般社団法人日本機械学会の論文
2001-08-22