Numerical Study on Dispersion Characteristics and Damage Results of Pre-Fragment Warhead

Nan Zhou; Jin Xiang Wang; Rui Yang

doi:10.4028/www.scientific.net/AMM.152-154.775

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 152-154Numerical Study on Dispersion Characteristics and...

Numerical Study on Dispersion Characteristics and Damage Results of Pre-Fragment Warhead

Abstract:

The dispersion characteristics, damage region and destroy results of typical defending materials by pre-fragment warhead using explosively driven were numerical studied by non-linear finite code of LS-DYNA with fluid-structure interaction algorithm, meanwhile, the influence of different detonation types and explosive properties on dispersion characteristics and damage results of kinetic energy rod were analysed. Results show that: 1.fragments disperse symmetrically with greater damage region when center detonation and line detonate are adopted, and the dispersion velocity of fragments reach the maximum when line detonate is used; 2.explosive of higher detonation velocity in favour of improving the initial velocity of fragments, strengthing the damage ability; 3.the penetration kinetic energy of fragments increase with the decrease of axial angle between fragment and damage target.

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Periodical:

Applied Mechanics and Materials (Volumes 152-154)

Pages:

775-780

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.152-154.775

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Online since:

January 2012

Authors:

Nan Zhou, Jin Xiang Wang, Rui Yang

Keywords:

Damage Characteristic, Dispersion Characteristic, Fluid Structure Interaction (FSI), Numerical Simulation, Pre-Fragment Warhead

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