Simplified formula of penetration depth for yaw-inducing bursting layer impacted by projectile
Bursting layer with irregular barriers on surface was a new composite bursting layer that had already caused people”s attentions about protective engineerings all over the world.A simplified computation formula of penetration depth for yaw-inducing bursting layer with irregular barriers on surface impacted projectile with probability was presented on the basis of computation method of penetration depth for normal impact or oblique impact.The influencing factors such as the attack angle, angular velocity, impact attitude of projectile and the uncontrolled free surface of target were synthetically considered for the computation formula by introducing the influencing coefficient of oblique impact and the influencing coefficient of yaw-inducing layer with normal impact.It was shown that the value of influencing coefficient of oblique impact was decreased with both impact angle and initial attacking angle increased, and also increased with impact velocity increased.The value of influencing coefficient of yaw-inducing layer was decreased with impact velocity increased.Computation results of the simplified formula were in good agreement with the test datum, it was indicated that the simplified computation formula could be used to accurately estimate the penetration depth for yaw-inducing bursting layer with irregular barriers on surface impacted by projectile.
solid mechanics penetration depth contact mechanics computation method influencing coefficient
CHEN Wan-xiang YE Jun-hua GUO Zhi-kun Dai Xiao-qing Lin Ke-xin
State Key Laboratory for Disaster Prevention & Mitigation of Explosion, PLA Univ.of Sci.& Teeh., Nan State Key Laboratory for Disaster Prevention & Mitigation of Explosion, PLA Univ.of Sci.& Teeh., Nan Airport and Barracks Office of Air Force Logistice Department in Guangzhou Military Region, Guangzho
国内会议
南京
英文
69-76
2013-07-01（万方平台首次上网日期，不代表论文的发表时间）