垫块结构对PELE横向效应的影响

Influence of Block Structure on Lateral Effect of PELE

为了研究垫块结构对PELE侵彻钢筋混凝土靶开孔尺寸的影响,在分析侵彻过程受力情况的基础上建立了工程模型,利用数值仿真和试验研究的方法分析了具有不同压力角垫块结构的PELE侵彻钢筋混凝土靶,与未添加垫块结构PELE侵彻钢筋混凝土靶进行了对比分析,工程模型对垫块压力角的计算结果与试验结果吻合较好。结果表明:垫块的压力角大小对PELE侵彻钢筋混凝土靶的横向效应影响显著,且存在最优压力角;添加垫块并且改变压力角大小可以增强PELE的横向效应;具有45°压力角的垫块结构和未添加垫块的PELE侵彻钢筋混凝土的作用机理相差较大。

To study the influence of block structure on PELE penetrating reinforced concrete targets,the stress in the process of penetration was analyzed,and the theoretical model was established. By utilizing the methods of numerical simulation and test,PELE added with block of different pressure-angles penetrating reinforced concrete targets was analyzed,which was compared with the PELE without block. The pressure-angle obtained by theoretical model agrees well with test results. The results show that the different pressure-angles of the block significantly influence the lateral effect of PELE penetrating reinforced concrete targets,and there exists the optimum pressure angle. The lateral effect of PELE can be enhanced by adding a block and changing the pressure angle. The mechanism of penetrating reinforced concrete targets of PELE with block at 45° angle is very different from that of PELE without block.