Effects of Steel Case on Underwater Shock Wave

Ji Li Rong; Da Lin Xiang; Jian Li

doi:10.4028/www.scientific.net/AMM.52-54.943

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 52-54Effects of Steel Case on Underwater Shock Wave

Effects of Steel Case on Underwater Shock Wave

Abstract:

The effects of steel case confinement for the aluminized explosive on underwater explosion(UNDEX) were experimentally and numerically investigated. The experimental results using 1kg cylindrical charge cased 6mm steel shell, show that steel case enhance the peak pressure, impulse, shock wave energy and decay time relative to the bare charge. The effect of different thickness of steel case was analyzed. With the increase of the case thickness, the shock wave were enhanced first and weaken later, and there is a lag-effect for the peak pressure of shock wave. There is an optimal case thickness which could maximum enhance the peak pressure. According to dimensional analysis, it's found that the ratio of case mass and charge mass( ) is a better dimensionless parameter to estimate UNDEX for a cased charge.

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Periodical:

Applied Mechanics and Materials (Volumes 52-54)

Pages:

943-948

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.52-54.943

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Online since:

March 2011

Authors:

Ji Li Rong, Da Lin Xiang, Jian Li

Keywords:

Aluminized Explosive, Peak Pressure, Shock Wave, Steel Case, UNDEX

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