Numerical analysis of influence of multi-layered media with different curvature on propagation of explosive wave

Yong Xiang Dong*, Shun Shan Feng, Xue Lin Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The propagation characteristics of explosive wave in the multi-layered media with different curvature and shape under the air explosion of spheric explosive charge have been analyzed by numerical simulation. The pressure and energy curves versus time for different models are given. The results show that explosion energy is accumulated, and the stress of layered media increases for the concave media comparing with the flat media. On the contrary, the explosion energy is sparse and the stress peak value decreases quickly in a short time for the convex media. So it can be concluded that the surface curvature and shape of multi-layered media change the propagation direction of explosive wave and flowing direction of energy. It plays an important role on the amplification and reduction of stress peak of the layered media. These conclusions will provide a reference for the design of ammunition and anti-detonating structures.

Original languageEnglish
Pages (from-to)99-102
Number of pages4
JournalDongbei Daxue Xuebao/Journal of Northeastern University
Volume27
Issue numberSUPPL.
Publication statusPublished - Dec 2006

Keywords

  • Explosive wave
  • Geometric curvature
  • Multi-layered media
  • Numerical simulation
  • Propagation characteristic

Fingerprint

Dive into the research topics of 'Numerical analysis of influence of multi-layered media with different curvature on propagation of explosive wave'. Together they form a unique fingerprint.

Cite this