摘要
为更深入研究钻地弹对钢纤维混凝土介质的侵彻与贯穿问题,根据钢纤维混凝土在弹体侵彻过程中的介质状态及能量的分配关系,提出了介质抗侵彻的变形和破坏模型;通过表征破碎区与径向裂缝区的能量传输关系,分析得出弹体直径与强度特征参数的比例关系是揭示侵彻与贯穿问题的重要特征量,推导了具有宽广比例尺度关系的锥形弹体侵彻公式,并应用于钢纤维混凝土介质.通过试验数据验证了公式的可靠性.
In order to study penetration and perforation of the projectile into steel fiber concrete （SFC）, the deformation and damage model of SFC medium was presented according to the medium state and the distribution relationship of energy in the process of penetration. The relationship of the energy transmission between pulverized zone and radial cracking zone was analyzed. The result shows that the scale relation of the projectile diameter and the character parameters of the strength is the main characteristic value which reveals the problem of penetration and perforation. A formula of penetration depth of cone-shaped projectile was proposed with broad scale relation. The formula can be applied to SFC medium and agrees well with the data of experiments.
出处
《弹道学报》
CSCD
北大核心
2007年第2期51-54,共4页
Journal of Ballistics
基金
国家自然科学基金项目(50179038)
