Analysis of influence parameters on mass loss of projectiles based on Jones abrasion model

During the high speed penetration into concrete targets, the head of projectiles will suffer different degrees of mass abrasion which affect the property of penetration. Based on Jones Model of mass abrasion, the effect of shear and wear causing mass loss is uniformly considered as friction per unit. Through the analysis of penetration experiment data, parameters of friction are discussed, and an empirical equation is imposed through linear fit of the relations between f and parameters for ratio of the yielding strength and hardness of target materials and projectile materials. Limiting the size scope Young Equation, calculating results are used for modifying the shear stress relating to the diameter of projectiles. A prediction formula of projectile mass abrasion is imposed with different scope of size.