Investigation of calculation method for anti-penetration of reactive power steel fiber concrete (RPC)

为了解决评估超高强活性粉末钢纤维混凝土的抗侵彻能力问题，根据混凝土在弹体侵彻过程中的介质状态及能量的分配关系，揭示了侵彻近区耗散能量结构与破碎区之间的比例尺度关系。由于近区介质的运动特性变形接近一维应变状态，受力类似于流体动力学状态，据此推导并简化了具有宽广的适用范围的侵彻计算公式，认为侵彻的深度主要由弹体的质量、形状、速度及靶体的强度、密度、断裂韧度、变形波速决定。通过多次的实弹试验，验证了公式的可靠性，得到了RPC的抗侵彻能力是普通混凝土的3倍的结论。

Investigation of calculation method for anti-penetration of reactive power steel fiber concrete (RPC)

In order to estimate the anti-penetrating power of reactive power steel fiber concrete,the deformation and failure model of media is presented according to the relation between state of media and energy distribution in the process of penetration of projectile,and the the scaling relation between near the penetration cavity that energy dissipated and crushing zone is uncovered.Deformation of the medium near the cavity is considered as one-dimension deformation state and similar to hydrokinetics state,accordingly the formulae on of wider applicable confines for calculating penetration is deduced and simplified.And it is considered that the penetration depth is determined by the mass,figure,velocity of the projectile and the strength,density,rupturing temper,deformation wave velocity of the target.The reliability of the formulae is proved by repeated test,and a conclusion is gained that the anti-penetrating ability of RPC is three times as that of general concrete.