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Study on the Formation of Reactive Material Shaped Charge Jet by Trans-Scale Discretization Method
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Study on the Formation of Reactive Material Shaped Charge Jet by Trans-Scale Discretization Method
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Journal Article
Study on the Formation of Reactive Material Shaped Charge Jet by Trans-Scale Discretization Method
2022
Overview
The formation process of reactive materials shaped charge is investigated by X-ray photographs and numerical simulation. In order to study the formation process, a trans-scale discretization method is proposed. A two-dimensional finite element model of shaped charge and reactive material liner is established and the jet formation process, granule size difference induced particle dispersion and granule distribution induced jet particle distribution are analyzed based on Autodyn-2D platform and Euler solver. The result shows that, under shock loading of shaped charge, the Al particle content decreases from the end to the tip of the jet, and increases as the particle size decreases. Besides, the quantity of Al particles at the bottom part of the liner has more prominent influence on the jet head density than that in the other parts, and the Al particle content in the high-speed section of jet shows inversely proportional relationship to the ratio of the particle quantity in the top area to that in the bottom area of liner.
Publisher
MDPI AG
Subject
