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陶瓷复合靶板的抗侵彻模型

DOI: 10.11858/gywlxb.2014.05.007, PP. 551-556

Keywords: 陶瓷,复合靶板,侵彻,空腔膨胀,损伤

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Abstract:

为了研究陶瓷复合靶的抗侵彻性能,在陶瓷的空腔膨胀理论中,提出了一个表征陶瓷损伤的损伤因子。基于考虑损伤的陶瓷空腔膨胀理论和金属空腔膨胀理论,并忽略靶板侧向边界的影响,根据陶瓷材料和金属材料的特点,按照弹-靶交界面处材料的不同应力状态,分4种情况进行了讨论。分别求得了4种分区下的陶瓷靶板的抗侵彻阻力,分析了影响陶瓷靶板抗侵彻阻力的材料性质。结果表明:(1)在陶瓷靶板的材料参数中,陶瓷失效后的压剪系数对靶板阻力的影响较大,而抗拉强度和抗压强度对靶板阻力的影响较小;(2)当陶瓷靶板近似为一个无限大的靶板时,其裂纹区的相对尺寸及空腔膨胀压力是一个常数。

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