周期的外圧力を受けるアングルプライ積層円筒殻の動的応答

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タイトル別名
  • Dynamic Response of Angle-ply Laminated Cylindrical Shells Subjected to Periodic External Pressure.
  • シュウキテキガイ アツリョク オ ウケル アングルプライ セキソウ エントウカ

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抄録

Advanced fiber-reinforced composite materials are being used for structural members, because of their high specific strength and stiffness. This paper deals with the problem of dynamic stability of angle-ply laminated cylindrical shells subjected to static and periodic external pressure. First, the axially symmetric motion of the shell under the loading is determined. Subsequently, certain perturbations are superimposed on this motion, and their behavior in time is investigated. The symmetric state of motion of the shell is called 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 equation. The inevitability of dynamically unstable behavior is proved analytically and the effects of various factors, such as lamination angle, fundamental natural frequency, vibrated amplitude, dynamic unstable mode and dimension of cylinder, are clarified.

収録刊行物

  • 材料

    材料 43 (486), 254-258, 1994

    公益社団法人 日本材料学会

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