定向断裂复合材料密封盖的冲击性能数值研究

徐振钦;乐贵高;韩冰

振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 77-80.

PDF(1329 KB)
PDF(1329 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (4) : 77-80.
论文

定向断裂复合材料密封盖的冲击性能数值研究

  • 徐振钦 ;乐贵高 ;韩冰
作者信息 +

NUMERICAL ANALYSIS OF A DERECTIONAL FRACTURE COMPOSITE SEAL COVER SUBJECTED TO IMPACT

  • XU Zhen-qin ;LE Gui-gao ;HAN Bing
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文章历史 +

摘要



为探讨复合材料密封盖定向断裂机理,采用动态非线性有限元计算和冲击实验相结合的方法,研究了密封盖在火箭弹引信反向冲击下断裂破坏过程及断裂机理,探讨了相邻火箭弹燃气射流正向冲击下密封盖拓扑自锁及其承载能力,并将有限元分析与冲击实验结果进行了对比,两者吻合良好。结果表明,拓扑自锁密封盖满足定向断裂要求,能保证引信体的安全性和可靠性,燃气射流冲击力不会对密封盖造成破坏。



Abstract

Combining dynamic nonlinear finit element analysis and impact test, the process and priciple of drectional fracture of seal cover under the opposite impact of rocket fuze, and the topology self locking and bearing capacity of seal cover under the forward impact of the adjacent rocket burning gas jet flow are studied, in order to realize the fracture principle of composite seal cover. A good agreement is obtained after comparation between the finit element analysis results and the impact test results. The research results show that the topology self locking seal cover satify the requirement of directional fracture, the safety and the reliability of fuze body are ensured and the seal cover will not be destroyed under the impingement force of rocket exhaust.

关键词

结构动力学 / 密封盖 / 有限元 / 定向断裂 / 冲击

Key words

structural dynamics / seal cover / finite element method (FEM) / directional fracture / impact

引用本文

导出引用
徐振钦;乐贵高;韩冰 . 定向断裂复合材料密封盖的冲击性能数值研究[J]. 振动与冲击, 2010, 29(4): 77-80
XU Zhen-qin;LE Gui-gao;HAN Bing . NUMERICAL ANALYSIS OF A DERECTIONAL FRACTURE COMPOSITE SEAL COVER SUBJECTED TO IMPACT[J]. Journal of Vibration and Shock, 2010, 29(4): 77-80

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