Numerical simulation eesearch of coated composite penetrator
In order to enhance the damage effect of shaped charge on the back of the target,a coated composite penetrator charge structure was designed.Driven by detonation wave,the copper cover is turned back to cover the reactive material.After penetrating the target,the reactive material releases energy to carry out arson after-effect damage to the target.LS-DYNA finite element software was used to simulate the forming and penetrating process of the coated composite penetrator.The influence of reactive liner diameter,outer curvature radius and tip thickness ratio on the forming of the coated composite penetrator was analyzed.The results show that the coating of the reactive material can be realized by embedding the reactive material into the inner side of the copper liner under the drive of explosive.The coated composite penetrator can penetrate the 30 mm thick 45#steel target,and cause a large area of damage to the after-effect target,which is improves the after-effect damage ability of the composite penetrator.
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