| UHMWPE背板铺层角度对陶瓷复合靶板抗弹性的影响 |
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| 引用本文： | 余毅磊,王晓东,任文科,马铭辉,蒋招绣,高光发.UHMWPE背板铺层角度对陶瓷复合靶板抗弹性的影响[J].北京理工大学学报,2022,42(6):612-619. |
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| 作者姓名： | 余毅磊 王晓东 任文科 马铭辉 蒋招绣 高光发 |
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| 作者单位： | 1.南京理工大学 机械工程学院, 江苏, 南京 210094 |
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| 基金项目： | 国家自然科学基金资助项目(11772160,11472008,11802001)；;冲击与安全工程教育部重点实验室开放基金资助项目(CJ202006)； |
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| 摘 要： | 由于背板强度对陶瓷/纤维复合装甲的抗弹性能存在明显影响，采用12.7 mm穿燃弹(刚脆性)冲击实验研究了不同UHMWPE背板铺层角度对陶瓷/纤维复合装甲弹道冲击性能的影响.通过观测回收的弹芯、靶体陶瓷及纤维背板宏观破坏特征，分析了陶瓷/纤维复合装甲的耗能机理及抗弹性能.试验结果表明，陶瓷锥是陶瓷面板的主要破坏模式，其宏观裂纹主要有:径向、环向及与锥形裂纹；纤维背板变形模式为动态锥形鼓包及边界褶皱，其破坏失效模式有:剪切失效及层间剥离.并且，背板强度对陶瓷/纤维复合靶板的抗弹性能有明显影响，随着UHMWPE背板铺层角度的减小，背板强度以及陶瓷/纤维靶板整体结构刚度随之增大，靶板对弹芯的破碎作用越明显，冲击后剩余弹芯最大碎片质量减小，小碎块数量增多，弹丸碎块穿透靶板后剩余侵彻能力减弱，复合靶板整体抗弹性能增加，同时背板鼓包高度减小，锥形鼓包所形成的角度增大，纤维层合板的破坏失效模式从剪切失效向层间剥离转变.
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| 关 键 词： | 陶瓷/纤维复合装甲 纤维铺层角度 抗弹性能 12.7 mm穿燃弹 |
| 收稿时间： | 2021-08-11 |
Effect of UHMWPE Back Plate Layering Angle on the Anti-Elasti-city of Ceramic Composite Target Plate |
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| YU Yilei,WANG Xiaodong,REN Wenke,MA Minghui,JIANG Zhaoxiu,GAO Guangfa.Effect of UHMWPE Back Plate Layering Angle on the Anti-Elasti-city of Ceramic Composite Target Plate[J].Journal of Beijing Institute of Technology(Natural Science Edition),2022,42(6):612-619. |
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| Authors: | YU Yilei WANG Xiaodong REN Wenke MA Minghui JIANG Zhaoxiu GAO Guangfa |
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| Affiliation: | 1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China2.Key Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China3.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | To study the influence of backplane strength on the anti-elastic properties of ceramic/fiber composite armor, a ballistic impact test of ceramic/fiber composite armor with different UHMWPE back plate angles was carried out by using 12.7 mm perforating projectiles (rigid brittle). The energy dissipation mechanism and anti-elastic energy of ceramic/fiber composite armor were analyzed by observing the macroscopic failure characteristics of the recovered projectile core, target ceramics and fiber backplane. The test results show that conical fracture is the main failure mode of ceramic panel, and the macroscopic cracks mainly include radial, annular and conical cracks. The deformation mode of the backplane is dynamic conical bulge and boundary fold, and its failure modes include shear failure and interlaminar stripping. The strength of the backplane has a great influence on the anti-elastic energy of ceramic/fiber composite target plate. With the stacking angle of UHMWPE back plate decreased, the strength of the backplane and the overall structural stiffness of ceramic/fiber target plate increase. The crushing effect of the target plate on the core becomes more obvious, and the mass of the maximum fragments in the residual core decreases after impact, while the number of small fragment increases. Penetrating the target plate, the residual penetration ability of the projectile fragments decreases, the anti-elastic energy of the target plate increases, the height of the backplane bulge decreases, and the angle formed by the conical bulge increases. The failure mode of fiber laminates changes from shear failure to interlaminar stripping. |
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