Research Of Capacity For Penetrating Resistance Of SiC Ceramic

In the light of the development in the research of ceramic composite armor, this dissertation studies the capacity for penetrating resistance of SiC ceramic composite armor by the way of actual ballistic experiment and numerical simulation which are based on the working conditions in the laboratory such as the equipments and software.According to the experience of designing and researching for the ceramic composite armor, the hardness, bending strength and density of the ceramic material are the factors which have the most important effect on the capacity for penetrating resistance of ceramic composite armor. In the dissertation, we measured the hardness, bending strength, density of the SiC ceramic which was used in the next experiment by the testing equipment in laboratory. This will provide accumulation of data for the following works.In the actual ballistic experiment, the structure of the SiC ceramic composite target plates were designed for the test purpose. First, through the actual ballistic experiments by using simulated105mm AP, we obtained the regular pattern about the capacity for penetrating resistance of SiC ceramic composite target plates under various conditions which includes the thickness effect, the obliquity effect, the position effect, the gap effect. Second, according to the conclusion of actual ballistic experiments by using12.7mm API and SiC ceramic composite target plates which is6mm thick, we could ensure that the manufacturing process of SiC ceramic composite target plates which were used in the experiments possess the capacity for resisting multi-projectile.Finally, we used the LS-DYNA program to simulate the process of12.7mm API penetrating into the SiC ceramic composite target plates which is6mm thick. The conclusion of simulation showed that the JH-2model could simulate the distortion of fragility material such as SiC ceramic. The numerical simulated conclusion compared with the conclusion of actual ballistic experiment, they were consistent with each other dasically.