Research on effect of the pad material on stress of the explosive charge bottom during launching artillery ammunition

F. Xu, J. W. Jiang*, H. W. Xie

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Using the generalized Maxwell visco-elastic constitutive model, the stress changes of the warhead explosive charge under high axial overload condition was simulated numerically by finite element method. The influence of Poisson's ratio and elastic modulus parameters of the pad material on the Von Mises stress of the explosive charge bottom was analyzed. The results show that when the elastic modulus of the pad is small, its Poisson's ratio is inversely proportional to the peak stress of the explosive charge bottom, while when the elastic modulus is large, its Poisson's ratio has almost no effect; with the increase of the elastic modulus of the pad, the stress of the explosive charge bottom first decreases and then increases; compared to metal materials and flexible materials, engineering plastic gaskets have a better effect on reducing the peak stress of the explosive charge bottom.

Original languageEnglish
Article number152018
JournalJournal of Physics: Conference Series
Volume2891
Issue number15
DOIs
Publication statusPublished - 2024
Event4th International Conference on Defence Technology, ICDT 2024 - Xi'an, China
Duration: 23 Sept 202426 Sept 2024

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