| 钨合金球形破片侵彻低碳钢的弹道极限速度计算模型 |
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| 引用本文： | 刘铁磊,徐豫新,王晓锋,张鹏,张健.钨合金球形破片侵彻低碳钢的弹道极限速度计算模型[J].兵工学报,2022,43(4):768-779. |
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| 作者姓名： | 刘铁磊 徐豫新 王晓锋 张鹏 张健 |
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| 作者单位： | （1.北京理工大学 爆炸科学与技术国家重点实验室， 北京 100081; 2.北京理工大学 重庆创新中心， 重庆 401120； 3.中北大学 机电工程学院， 山西 太原 030051） |
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| 基金项目： | 重庆市自然科学基金项目(cstc2020jcyj-msxmX0722)； |
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| 摘 要： | 为得到更大速度适用范围的钨合金球形破片侵彻低碳钢板弹道极限速度计算模型,分析不同着靶速度下钨合金球形破片侵彻低碳钢板的侵彻破坏特征,建立了包含弹、靶主要力学参数的弹道极限速度计算模型,模型系统考虑破片刚性、塑性、侵蚀以及破碎侵彻等情况;根据模型求解需要,针对钨合金破坏特征建立对应速度阈值的计算方法;基于已有试验数据,应...
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| 关 键 词： | 钨合金球形破片 低碳钢 弹道极限速度 冲击动力学 |
Ballistic Limit Calculation Model of Tungsten Alloy Spherical Fragments Penetrating into Low Carbon Steel Plate |
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| LIU Tielei,XU Yuxin,WANG Xiaofen,ZHANG Peng,ZHANG Jian.Ballistic Limit Calculation Model of Tungsten Alloy Spherical Fragments Penetrating into Low Carbon Steel Plate[J].Acta Armamentarii,2022,43(4):768-779. |
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| Authors: | LIU Tielei XU Yuxin WANG Xiaofen ZHANG Peng ZHANG Jian |
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| Affiliation: | (1.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2.Chongqing Innovation Center, Beijing Institude of Technology, Chongqing 401120, China; 3.College of Mechatronic Engineering, North University of China, Taiyuan 030051, Shanxi, China) |
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| Abstract: | The penetration failure characteristics of tungsten alloy spherical fragments penetrating into low-carbon steel plate at different target speeds are analyzed to obtain a ballistic limit calculation model of tungsten alloy spherical fragments penetrating into low-carbon steel plate in a wider speed range. A ballistic limit calculation model including the main mechanical parameters of projectile and target is proposed. The fragment rigidity，plasticity, erosion and fragmentation penetration iare considered in the proposed model. A calculation method of velocity threshold for different failure characteristics of tungsten alloy is established for the need of solving the model. Based on the existing experimental data, the model coefficients are obtained by using trust region method. In addition, the ballistic limit of fragments penetrating into Q235 and Q345E steel plates is test，and the calculation accuracy of the model is analyzed according to the test results. The results show that the calculated average error and maximum error of the model are 10% lower than those of the test results，and the average error of the model is reduced by 60% compared with the existing ballistic limit calculation model. |
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| Keywords: | tungstenalloyfragment lowcarbonsteel ballisticlimit impactdynamics |
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