Research on Initiation Sensitivity of Solid Explosive and Planer Initiation System


  • N Matsuo
  • M Otuka
  • H Hamasima
  • K Hokamoto
  • S Itoh



Firstly, recently, there are a lot of techniques being demanded for complex process, various explosive initiation method and highly accurate control of detonation are needed. In this research, the metal foil explosion using high current is focused attention on the method to obtain linear or planate initiation easily, and the main evaluation of metal foil explosion to initiate explosive was conducted. The explosion power was evaluated by observing optically the underwater shock wave generated from the metal foil explosion.

Secondly, in high energy explosive processing, there are several applications, such as shock compaction, explosive welding, food processing and explosive forming. In these explosive applications, a high sensitive explosive has been mainly used. The high sensitive explosive is so dangerous, since it can lead to explosion suddenly. So, for developing explosives, the safety is the most important thing as well as low manufacturing cost and explosive characteristics.

In this work, we have focused on the initiation sensitivity of a solid explosive and performed numerical analysis of sympathetic detonation. The numerical analysis is calculated by LS-DYNA 3D (commercial code). To understand the initiation reaction of an explosive, Lee-Tarver equation was used and impact detonation process was analyzed by ALE code. Configuration of simulation model is a quarter of circular cylinder. The donor type of explosive (SEP) was used as initiation explosive. When the donor explosive is exploded, a shock wave is generated and it propagates into PMMA, air and metallic layers in order. During passing through the layers, the shock wave is attenuated and finally, it has influence on the acceptor explosive, Comp. B. Here, we evaluate the initiation of acceptor explosive and discuss about detonation pressure, reactive rate of acceptor explosive and attenuation of impact pressure.


Tetsuyuki Hiroe, "Generation and application of planer detonation wave using wire explosion", Journal of the Industrial Explosives Society, Japan, vol.53 (4) P219-P226 (1992)

S. P. Marsh, LASL Shock Hugoniot Data, University of California Press (1980)

P. W. Cooper, "A new look at the run distance correlation and its relationship to other non-steady-state phenomena", Tenth International DETONATION Symposium, New Mexico, P690-695 (1993)

Shiro KUBOTA, "Numerical investigation on shock initiation of high explosive using Lee-Tarver model", Journal of the Explosives Society, vol. 62 (2) P57-63 (2001)

Masahiko Otsuka, "A study on initiation characteristics of metal wire by wire explosion", Fluids engineering conference 2003, Japan, P11 (2003)



How to Cite

Matsuo, N., Otuka, M., Hamasima, H., Hokamoto, K. and Itoh, S. (2011) “Research on Initiation Sensitivity of Solid Explosive and Planer Initiation System”, The International Journal of Multiphysics, 5(2). doi: 10.1260/1750-9548.5.2.131.




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