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论文类型：期刊论文

发表时间：2010-03-01

发表刊物：COMPUTERS & STRUCTURES

收录刊物：SCIE、EI

卷号：88

期号：5-6

页面范围：322-330

ISSN号：0045-7949

关键字：Cylindrical shell; Dynamic buckling; Hamiltonian system; Local buckling; Torsion

摘要：In this paper the local buckling of cylindrical shell under torsion is discussed. The Hamiltonian system approach is employed to analyze the propagation of shear wave. In this system, critical torsional loads and buckling modes are reduced to a problem of eigenvalues and eigensolutions of increasing orders. Buckling modes are divided into two types, the local torsional buckling modes and the helical buckling modes. For short-time shear wave propagation, local torsional buckling occurs easily. On the contrary, the helical buckling modes appear when the wave propagates for a longer time and these modes correspond to the first-order eigensolution. (C) 2009 Elsevier Ltd. All rights reserved.