中文摘要：

地球穿入武器(EPW ) 为攻击增强的水泥和岩石保护的地下的目标是适用的。与增加影响速度， penetrator 的集体损失 / 磨损由于鼻子形状的变化增加穿入效率，它显著地减少。磨损可以导致 penetrator 的不稳定性，并且导致它的结构的失败。普通劣势，即相应试验性的结果上的依赖，在所有可得到的公式存在，它在估计 penetrator 的集体损失限制他们申请的范围。在这份报纸，我们在 penetrator 的集体损失上进行参量的研究，并且显示 penetrator 的集体损失能被七个变量决定，即，起始的影响速度，起始的鼻子形状，融化的热，目标的射弹以及目标的总数坚硬的胫直径。在 penetrator 的集体磨损主导的因素的进一步的讨论被给，它可能对分别地为防御或令人不快的目的优化目标或射弹有用。关键词 Penetrator - 集体损失 - 穿入的深度 - 参量的学习工程被中国(10672152 ) 的国家自然科学基金会支持，设计物理(2009A0201009 ) 和结构的力学的研究所的革新资金的中国学院的科学基金会， CAEP (09CXJ05 ) 。

英文摘要：

Earth penetration weapon （EPW） is applicable for attacking underground targets protected by reinforced concrete and rocks. With increasing impact velocity, the mass loss/abrasion of penetrator increases, which significandy decreases the penetration efficiency due to the change of nose shape. The abrasion may induce instability of the penetrator, and lead to failure of its structure. A common disadvantage, i.e. dependence on corresponding experimen- tal results, exists in all the available formulae, which limits their ranges of application in estimating the mass loss of penetrator. In this paper, we conduct a parametric study on the mass loss of penetrator, and indicate that the mass loss of penetrator can be determined by seven variables, i.e., the initial impact velocity, initial nose shape, melting heat, shank diameter of projectile and density and strength of target as well as the aggregate hardness of target. Further discussion on factors dominant in the mass abrasion of penetrator are given, which may be helpful for optimizing the target or the projectile for defensive or offensive objectives, respectively.