钢球侵彻不同靶标的相似性分析

Similarity Law Analysis of Steel Ball Penetrating into Different Targets

为研究相同弹丸侵彻不同靶标所造成损伤之间的相似性,以钢球侵彻明胶造成的瞬时空腔的最大直径为研究对象,基于相似理论推导出瞬时空腔最大直径的相似准则方程,利用钢球侵彻明胶的实验数据求解出准则方程的系数和指数,最后通过钢球侵彻猪后腿实验验证了所得到的准则方程可用于不同靶标之间的相似性分析,并具有准确性和合理性。

To investigate the damage similarity when same projectile penetrates into different targets,by taking the maximum diameters of the temporary cavity as the research object,which is produced by the steel ball penetrating into the gelatin. Based on the similar theory,the similarity criterion equation of the maximum temporary cavity diameter is deduced. The experimental data of steel ball penetrating into gelatin are used to solve the criterion equation coefficient and index. The experimental data of steel ball penetrating into pork validated that the criterion equation can be used for the analysis of the similarity between different targets,and has accuracy and rationality.