Spallation of steel tube driven by sliding detonation

XIONG Jun; ZHOU Hai-bing; LIU Wen-tao; ZHANG Shu-dao; SUN Jin-shan

doi:10.11883/1001-1455(2008)02-0105-05

Volume 28 Issue 2

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XIONG Jun, ZHOU Hai-bing, LIU Wen-tao, ZHANG Shu-dao, SUN Jin-shan. Spallation of steel tube driven by sliding detonation[J]. Explosion And Shock Waves, 2008, 28(2): 105-109. doi: 10.11883/1001-1455(2008)02-0105-05

Citation:

XIONG Jun, ZHOU Hai-bing, LIU Wen-tao, ZHANG Shu-dao, SUN Jin-shan. Spallation of steel tube driven by sliding detonation[J]. Explosion And Shock Waves, 2008, 28(2): 105-109. doi: 10.11883/1001-1455(2008)02-0105-05

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Spallation of steel tube driven by sliding detonation

doi: 10.11883/1001-1455(2008)02-0105-05

1.
Beijing Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

Publish Date: 2008-03-25

Abstract

Abstract

VG(void growth) damage model is generalized to the 2D situations, which counts in the effect of the principal stress direction on the evolution of damage, and is used in the 2D numerical simulations of spallation of steel tube driven by sliding detonation of high explosive GI-920, as well as the explicit fracture algorithm. The different pressure profiles on the outer surface of steel tube between the 1D implosion case and the 2D sliding detonation case are analyzed. Especially the influence of the thickness of high explosive on the pressure profiles is investigated in detail. The numerical results present the distribution and evolution of damage in the steel tube, as well as the initialization and extending of the spalled crack. The initial thicknesses of spalled layer obtained numerically conform to the experiments.
- mechanics of explosion,
- spallation,
- numerical simulation,
- sliding detonation,
- damage