【摘要】 研究圆柱壳在两参数轴向冲击载荷下的弹塑性动力屈曲问题，基本控制方程由弹塑性连续介质中关于加速度的最小原理获得，本构关系采用增量理论。研究表明：屈曲过程可划分为两相，两相之间由临界时间ｔ￣＊表征，并分别讨论了应力波对屈曲的影响，压缩波与弯曲波的相互作用及几何尺寸，材料参数，初始缺陷，载荷峰值及持续时间等诸多因素与动力屈曲的关系。更多还原

【Abstract】 The inelastic dynamic buckling of cylindrical shells under axial two parametersimpulsive loading is discussed. The basic equations of structure are derived from a minimumprinciple in dynamics of elastic-plastic continua at finite deformation and the flow theoryof plasticity is employed. Two phases(a pre-critical and post-critical phase)can be distin-guished at an early stage of dynamic buckling of inelastic shell.The effects of peak valueand during time of loading, initial imperfections, geometric dimensions, materiai parame-ters, compression and bend wave to the dynamic buckling behaviour of cylindrical shellsunder axial two parameters loading are discussed.更多还原