黄民荣, 顾晓辉, 高永宏. 混凝土复合靶结构参数对侵彻过载的影响[J]. 力学与实践, 2010, 32(5): 55-61. DOI: 10.6052/1000-0879-lxysj2010-034
引用本文: 黄民荣, 顾晓辉, 高永宏. 混凝土复合靶结构参数对侵彻过载的影响[J]. 力学与实践, 2010, 32(5): 55-61. DOI: 10.6052/1000-0879-lxysj2010-034
THE INFLUENCE OF THE CONFIGURATED PARAMETERS OF CONCRETE COMPOSITE TARGET ON THE PENETRATION DECELERATION[J]. MECHANICS IN ENGINEERING, 2010, 32(5): 55-61. DOI: 10.6052/1000-0879-lxysj2010-034
Citation: THE INFLUENCE OF THE CONFIGURATED PARAMETERS OF CONCRETE COMPOSITE TARGET ON THE PENETRATION DECELERATION[J]. MECHANICS IN ENGINEERING, 2010, 32(5): 55-61. DOI: 10.6052/1000-0879-lxysj2010-034

混凝土复合靶结构参数对侵彻过载的影响

THE INFLUENCE OF THE CONFIGURATED PARAMETERS OF CONCRETE COMPOSITE TARGET ON THE PENETRATION DECELERATION

  • 摘要: 混凝土复合靶基体靶板的层数和中间粘结层厚度是复合靶能否模拟单一靶的两个重要影响因素, 利用AUTODYN2D仿真软件, 重点研究了这两个因素对弹体侵彻过载的影响. 首先通过已有的实验和理论公式验证了初始仿真模型和材料参数的合理性. 在此基础上, 通过改变基体靶板的层数和中间粘结层厚度建立了多组侵彻复合靶的仿真算例. 通过弹体侵彻速度、过载曲线的对比, 结果表明: 全尺寸深侵彻过载实验中复合靶能够代替单一靶, 但复合靶中间粘结层的厚度不要大于1/2弹头部长度; 当中间粘结层厚度超过弹头部长度1/2时, 弹体侵彻复合靶过载与侵彻单一靶的偏离程度随基体靶板层数的增加而增大, 上述结论可为实验中构建混凝土复合靶提供参考.

     

    Abstract: The important parameters for the concretecomposite target to simulate the monolithic target include the number ofmatrix layers and thicknesses of adhesive layers of the concrete compositetarget. The influence of the two parameters on the penetration decelerationis studied by using AUTODYN2D hydrocode. The calibration andvalidation for the initial simulation model and materialparameters are done through a comparison of numerical simulationresults with the experimental results and the analytical model inliterature. Multi-group simulation models of the concrete compositetargets subjected to projectile impact are configured based on the number of matrix layers and thicknesses of adhesive layers ofcomposite targets. The results of penetration velocity anddeceleration-time histories show that the composite target can simulate themonolithic target in the deceleration penetration experiments, but thethicknesses of adhesive layers should not be more than half of theprojectile nose length, the deviation between them increases as thenumber of matrix layers of composite target increases when the thicknessesof adhesive layers are more than half of the projectile nose length. Thesimulation results provide references for the configuration of concretecomposite targets in trials.

     

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