【摘要】 对无限长圆管受矩形脉冲载荷作用下的刚塑性动力响应和失效、结构响应模式、冲击点的挠度和能量耗散进行了分析。所得结果对输油管线和油井套管等圆管结构在动载荷作用下的变形和失效研究有重要的参考价值。更多还原

【Abstract】 By using theoretical analysis based on the rigid,perfectly plastic material idealization,a comprehensive analysis of dynamic behavior of an infinite long tube beam under a rectangular pressure pulse was made.Special attention was paid to the deformation mechanism,the global deformation and plastic dissipated energy.Complete solutions are obtained for the various magnitudeof load.The results will be valuable in research of dynamic deformation and failure of pipelines subjected to impulsive loading.更多还原