轴向冲击载荷作用下梯度圆管的动力学行为

王鹏 李世强 于国际 吴桂英

王鹏, 李世强, 于国际, 吴桂英. 轴向冲击载荷作用下梯度圆管的动力学行为[J]. 高压物理学报, 2017, 31(6): 778-784. doi: 10.11858/gywlxb.2017.06.013
引用本文: 王鹏, 李世强, 于国际, 吴桂英. 轴向冲击载荷作用下梯度圆管的动力学行为[J]. 高压物理学报, 2017, 31(6): 778-784. doi: 10.11858/gywlxb.2017.06.013
WANG Peng, LI Shi-Qiang, YU Guo-Ji, WU Gui-Ying. Dynamic Crushing Behavior of Graded Hollow Cylindrical Shell under Axial Impact Loading[J]. Chinese Journal of High Pressure Physics, 2017, 31(6): 778-784. doi: 10.11858/gywlxb.2017.06.013
Citation: WANG Peng, LI Shi-Qiang, YU Guo-Ji, WU Gui-Ying. Dynamic Crushing Behavior of Graded Hollow Cylindrical Shell under Axial Impact Loading[J]. Chinese Journal of High Pressure Physics, 2017, 31(6): 778-784. doi: 10.11858/gywlxb.2017.06.013

轴向冲击载荷作用下梯度圆管的动力学行为

doi: 10.11858/gywlxb.2017.06.013
基金项目: 

国家自然科学基金 11602161

山西省自然科学基金 201601D021025

详细信息
    作者简介:

    王鹏(1989—), 男,硕士研究生,主要从事冲击动力学研究.E-mail:wangpeng19891111@163.com

    通讯作者:

    吴桂英(1962—), 女,教授,博士生导师,主要从事冲击动力学研究.E-mail:wgy2005112@163.com

  • 中图分类号: O347

Dynamic Crushing Behavior of Graded Hollow Cylindrical Shell under Axial Impact Loading

  • 摘要: 通过建立应力波在圆管中传播的单波模型,引入圆管屈曲过程中壁厚变化修正参数,分析了壁厚沿轴向变化的梯度圆管在受到冲击载荷作用时的轴向屈曲动力响应,并与均匀壁厚圆管进行对比。修正后的单波模型理论结果与数值模拟结果吻合较好。在轴向冲击载荷作用下,与均匀壁厚圆管相比,梯度薄壁圆管具有更好的缓冲作用。

     

  • 图  梯度圆管壁厚沿轴向变化示意

    Figure  1.  Wall thickness varying along the axial of hollow cylindrical shell

    图  圆环模式破损下屈曲褶皱示意[1]

    Figure  2.  Cross section of axial dynamic buckling response of hollow cylindrical shell[1]

    图  配重和圆管撞在刚性墙上的单波模型

    Figure  3.  SS model in hollow cylindrical shell with attached mass impinging onto a rigid target

    图  壁厚5 mm圆管的有限元模拟结果(1/4模型, X-Z面)

    Figure  4.  Finite element results of hollow cylindrical shell (h=5 mm, 1/4 model, X-Z section)

    图  理论模型和有限元分析结果对比

    Figure  5.  Velocities versus time of SS mode and FE model

    图  圆管在褶皱变形过程中的几何形态

    Figure  6.  Geometric shape of hollow cylindrical shell during buckling

    图  圆管压溃后一个褶皱(2H)的几何模型(a)及压溃过程实际厚度示意(b)

    Figure  7.  Geometric model of crushed hollow cylindrical shell (2H) (a) and its real wall thickness (b)

    图  修正后理论模型和有限元分析结果对比

    Figure  8.  Velocities versus time of SS mode, FE model and modified SS mode

    图  理论模型及有限元模型所得圆管完全压溃时配重的速度

    Figure  9.  Velocities of attached mass when the hollow cylindrical shell crushed totally

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出版历程
  • 收稿日期:  2017-01-11
  • 修回日期:  2017-04-01

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