INFLUENCE OF ADIABATIC SHEAR SENSITIVITIES OF STEEL PROJECTILES ON THEIR BALLISTIC PERFORMANCES
In ballistic penetration, one main failure mode for a projectile is adiabatic shear localization which results in macro cracks developing along ASBs which lead to the projectiles fracture. In the conventional designations and selections of projectile materials, high strength and high toughness are two major considerations. Relatively few considerations have been given to the projectile materials sensitivity to adiabatic shear localization. In this paper, the adiabatic shear sensitivity and ballistic performances of two high strength steels, 30CrMnSi and 35CrWMo, with similar static mechanical properties were investigated. Split Hopkinson Pressure Bar (SHPB) for compression loading and ballistic experiments above the velocity 1000m/s against thick concrete targets were performed. The SHPB and ballistic experimental results have shown that 30CrMnSi steel exhibits more adiabatic shear sensitivity than 35CrWMo steel. Even though these two steels have similar mechanical properties, 35CrWMo steel projectile exhibits better penetration performance than 30CrMnSi projectile due to different adiabatic shear sensitivity.
WANG Lin LI Sbu-kui LI Yun-kai HU Xian-feng WANG Fu-chi
School of Materials Science & Engineering 5 South Zhongguancun Street, Haidian District, Beijing 100081, P. R. China
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
1253-1259
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）