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兵工学报 ›› 2005, Vol. 26 ›› Issue (3): 357-361.

• 论文 • 上一篇    下一篇

爆炸载荷作用下钢管拼装结构大变形模态解

顾紅军1,2,赵国志1,殷克功1,2   

  1. 1.南京理工大学,江苏南京210094;2.徐州空军学院,江苏徐州221000
  • 收稿日期:2004-01-05 上线日期:2014-12-25
  • 通讯作者: 顾紅军

Modal Solution to Large Deformation of a Steel-pipe Assembly Under Explosive Loading

GU Hong-jun1,2, ZHAO Guo-zhi1,YIN Ke-gong1,2   

  1. 1.Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China; 2. Air Force Logistics Institute, Xuzhou, Jiangsu 221000, China
  • Received:2004-01-05 Online:2014-12-25
  • Contact: GU Hong-jun

摘要: 钢管拼装吸能元件在爆炸载荷作用下的大变形问题,对于抗爆结构的吸能装置设计具有重要意义。本文在对单个钢管动力压扁过程研究的基础上,根据实验分析了拼装钢管在径向受爆炸载荷作用的塑性行为,并且基于虚速度原理建立了八塑性铰机构模态解方程,描述了拼装钢管受爆炸载荷作用的位移速度场,最后进行了实验验证。

关键词: 爆炸力学 , 拼装钢管 , 模态解 , 吸能元件 , 爆炸载荷 , 大变形

Abstract: Large deformation in the energy-absorbing unit of a multi-row steel pipe structure under explosive loading is of great significance to the design of an explosion-resistant energy-absorbing unit. From experiments, the plastic behavior of the steel pipe assembly was analyzed when radial explosive loading is exerted. Based on the principle of virtual velocity, the modal solution to the eight-plastic-hinge pattern was established, and the displacement speed field of steel pipes under radial explosive loading was described and verified in experiments.

Key words: explosive mechanics , steel-pipe assembly , modal solution , energy-absorbing unit , explosive load?ing , large deformation

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