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RESEARCH FOR EXPLOSION OF HIGH EXPLOSIVE IN COMPLEX MEDIA

  • M. Otsuka
  • S. Tanaka
  • S. Itoh
Conference paper

Abstract

Numerical analysis is an important tool in obtaining a detailed understanding about explosive phenomena. In this research, we perform the analysis of multilayer model with the air layer. In our calculation code, the analysis of compressible substances, which cells transform greatly (like air) generally is very difficult. In this research, we used LS-DYNA3D, an analysis code using a finite-element method. By analyzing the stress state of the air hole circumference, multilayer models such as air, water and structure are analyzed and it aims to get the propagation process of the shock wave. The multi-material Arbitrary Lagrangian Eulerian (MMALE) [1] method improves upon pure Eulerian formulation by allowing the reference fluid meshes to translate, rotate and deform, thus minimize the amount of flux transport, and reduce mesh size of the reference fluid meshes.

Keywords

Shock Wave Detonation Velocity High Explosive Arbitrary Lagrangian Eulerian Detonation Front 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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REFERENCES

  1. 1.
    K. Mahmadi, N. Aquelet and M. Souli (2002), ALE multi-material formulation of high explosive detonation using LS-DYNA3D. In: Emerging technologies in Fluids, Structures, and Fluid/Structure Interactions, PVP Vol. 446–1.Google Scholar
  2. 2.
    E.L. Lee, M. Finger and W. Collins (1973), JWL equation of state coefficients for high explosives. Lawrence Livermore Laboratory, UCID-16189.Google Scholar
  3. 3.
    S.P. Marsh (1980), LASL Shock Hugoniot Data. University of California Press, Berkeley, CA.Google Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • M. Otsuka
    • 1
  • S. Tanaka
    • 1
  • S. Itoh
    • 2
  1. 1.Graduate School of Science and TechnologyKumamoto UniversityKumamoto CityJapan
  2. 2.Shock Wave and Condensed Matter Research CenterKumamoto UniversityKumamoto CityJapan

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