In order to solve the problem of inadequate penetration of low-density jet penetrating shell charge, the low-density PTFE are modified by adding a certain fraction of copper powder in the matrix. This treatment helps to increase the material density and jet energy, as well as to improve the static and dynamic mechanical properties of the material. AUTODYN-2D finite element software is used to simulate the process in which the low-density jet forms and penetrates shell charge. The simulation and experiment results show that in comparison to PTFE, the mechanical properties of PTFE/Cu have been significantly improved, and the jet has strong penetration capability. Under the same structural conditions, the penetration diameter of PTFE/Cu jet is about enhanced by 70 % for the panel and 30 % for the back plate compared to that of PTFE jet. As an experimental result, the penetration depth of the main armour by PTFE/Cu jet is enhanced by 5.38 % compared with that of PTFE jet.
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