When a penetrator with enhanced lateral effect (PELE) impacts on a reinforced concrete (RC) target, the target is damaged with a large opening. An understanding of how PELE projectile parameters affect the opening dimension, is essential for effective design of the PELE projectile. In this study, under the condition that the impact velocity and target parameters (strength and thickness) were fixed values, the important influence factors of the PELE (jacket wall thickness B, jacket material strength $Y_1$, filling material strength $Y_2$ and angle of monolithic jacket θ) were determined by a dimensional analysis. Tests and simulations of the PELE penetrating the RC target were conducted to analyze the influence of these factors on opening diameter ($\overline{D}$, an equivalent diameter under relative kinetic energy). Based on the test and simulation results, it is found that the influence of these factors B, Y₁ and θ on the deformation mode of the jacket shows a similar trend: as values of the three factors decrease, the jacket deforms from small bending deformation to large one, and then to curling deformation. This causes the opening diameter to first increase with the decrease of these three factors, and then decreases. It is well known that the bending resistance of the jacket is related to these factors B, Y₁ and θ. Therefore, a plastic limit bending moment (M₀) of the jacket was quoted to characterize the influence of these factors on the bending deformation of the jacket and the opening diameter of the target. The influence factor $Y_2$ causes $\overline{D}$ to first increase with the increase of $Y_2$, and then decreases. A formula was developed to predict the opening diameter, whose influence parameters were considered in a dimensionless way. It has been shown that the dimensionless opening diameter $\overline{D}/d_1$ is dependent on two dimensionless parameters $Q=\sqrt{\frac{d_1^3{f}_{\text{c}}}{M_0}}$ and $G=\sqrt{\frac{f_{\text{c}}}{Y_2}}$, where $d_1$ and $f_{\text{c}}$ are the outer diameter of the projectile and the compressive strength of the target, respectively.

当具有增强的横向效应（PELE）的穿透器撞击钢筋混凝土（RC）目标时，目标会被大开口损坏。了解PELE弹丸参数如何影响开口尺寸，对于有效设计PELE弹丸至关重要。在本研究中，在冲击速度和目标参数（强度和厚度）为固定值的条件下，PELE的重要影响因素（夹克壁厚B，夹克材料强度）${ÿ}_{\mathrm{1个}}$，填充材料强度 ${ÿ}_{\mathrm{2个}}$通过尺寸分析确定整体外套的角θ（θ）。对穿透RC目标的PELE进行了测试和模拟，以分析这些因素对开口直径的影响（$\overline{d}$，相对动能下的等效直径）。根据测试和仿真结果，发现这些因素B，Y ₁和θ对护套变形模式的影响呈现出相似的趋势：随着三个因素值的减小，护套会因较小的弯曲变形而变形。到大一个，然后到卷发变形。这导致开孔直径首先随着这三个因素的减小而增大，然后减小。众所周知，护套的抗弯曲性与这些因素B，Y ₁和θ有关。因此，塑性极限弯矩（M ₀引用护套的）来表征这些因素对护套的弯曲变形和靶的开口直径的影响。影响因素${ÿ}_{\mathrm{2个}}$ 原因 $\overline{d}$ 首先随着增加而增加 ${ÿ}_{\mathrm{2个}}$，然后减少。开发了一个公式来预测开口直径，并以无量纲的方式考虑了其影响参数。已经表明，无量纲的开口直径$\overline{d}/d_{\mathrm{1个}}$ 取决于两个无量纲参数 $问=\sqrt{\frac{d_{\mathrm{1个}}^3{F}_{\text{C}}}{{\mathrm{中号}}_0}}$ 和 $G=\sqrt{\frac{F_{\text{C}}}{{ÿ}_{\mathrm{2个}}}}$， 在哪里 $d_{\mathrm{1个}}$ 和 $F_{\text{C}}$ 分别是弹丸的外径和目标的抗压强度。