高超声速钻地弹对混凝土靶体的毁伤机理及工程防护研究

For the development of the high-strength alloy materials and the propellant technologies as well as the ever deeper and harder of the defense engineering constructed underground, the investigations of the terminal ballistic properties of the hypersonic velocity EPWs (Earth Penetrating Weapons) penetrating into concrete target has been becoming a heated topic for both weapon designers and experts in the defense engineering area. For the demands of the national defense and the interdisciplinary research frontier, based on the experimental, theoretical and numerical simulation approaches, this project will focus on the stability of the EPW during the hypersonic velocity penetration (the attacking velocity ranges from 1km/s to 1.7km/s) into concrete target as well as the engineering defense. The variation laws of resistance force, mass loss and nose-blunting effects of the projectile during the hypersonic velocity penetration on concrete target will be presented, the predicted approaches of the limit penetration velocity and the critical criteria for the structural destruction and ballistic instability will be obtained, the damage mechanism of the hypersonic velocity EPWs penetrating into concrete target will be revealed, and the design and optimization methods of the structural configuration and material chosen of the EPWs as well as the engineering design codes of the high-strength concrete filled blocks bursting layer will be proposed. The expected achievement can fulfill and complete the domestic investigations on the hypersonic velocity penetration area, which have both the theoretical and military application meanings for the development of the hypersonic EPWs (structural design, nosed geometric optimization and etc.) as well as the security defense of the important military and civil constructions (structural configuration and materials of the bursting layer, yaw-inducing approaches and etc.).

新型高强合金材料和推进技术的发展以及防护工程的日益深地下化和坚固化，促使钻地弹高超声速侵彻混凝土靶体的终点效应研究从本世纪初开始成为武器研发和工程防护领域共同关注的热点问题。本课题紧密围绕国防战略需求和交叉学科研究前沿，拟针对高超声速钻地弹（着靶速度介于1km/s-1.7km/s）侵彻混凝土靶体的稳定性及工程防护进行实验、理论和数值模拟研究。揭示高超声速弹体侵彻阻力、质量损失和头形钝化规律，提出弹体结构和弹道失稳的临界判据以及极限侵彻速度的预测方法，揭示高超声速钻地弹对混凝土靶体的毁伤机理，提出高超声速战斗部结构与材料的优化设计方法以及高强混凝土浆砌块石遮弹层的工程设计方法。预期成果将有效补充和完善国内在混凝土介质高超声速侵彻与防护领域的研究不足，对于我国高速钻地武器的研发（结构设计、头形优化等）和军、民用重要工程的安全防护（遮弹层结构类型与材料、偏航措施等）具有重要的研究价值和军事意义。

新型高强合金材料和推进技术的发展以及防护工程的日益深地下化和坚固化，促使钻地弹高超声速侵彻混凝土靶体的终点效应研究从本世纪初开始成为武器研发和工程防护领域共同关注的热点问题。本课题围绕高超声速钻地弹（着靶速度介于1km/s-1.7km/s）侵彻混凝土靶体的稳定性及工程防护进行实验、理论和数值模拟研究。揭示了高超声速弹体侵彻阻力、质量损失和头形钝化规律，提出弹体结构和弹道失稳的临界判据以及极限侵彻速度的预测方法。揭示了高超声速钻地弹对混凝土靶体的毁伤机理，提出了新型超高性能混凝土防护材料与结构抗侵彻计算方法。研究成果对于我国高速钻地武器的研发和军、民用重要工程的安全防护具有重要的研究价值和军事意义。研究成果出版英文专著1部，发表论文25篇，其中SCI收录15篇（其中7篇发表于本领域著名期刊International Journal of Impact Engineering，影响因子IF=2.9），EI收录9篇。获2014年国家科技进步二等奖，排名第7。