| Stability analyses of the mass abrasive projectile high-speed penetrating into concrete target. Part Ⅰ： Engineering model for the mass loss and nose-blunting of ogive-nosed projectiles |
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| 作者姓名： | Hao Wu ;Xiao-Wei Chen ;Li-Lin He ;Qin Fang |
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| 作者单位： | [1]Institute of Systems Engineering,China Academy of Engineering Physics,621900 Mianyang, China; [2]State Key Laboratory for Disaster Prevention &Mitigation of Explosion & Impact,PLA University of Science and Technology,210007 Nanjing, China |
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| 基金项目： | supported by the National Outstanding Young Scientists Foundation of China（11225213）; the Funds for Creative Research Groups of China（51321064）; the National Natural Science Foundation of China（11172282 and 51378015） |
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| 摘 要： | The mass loss and nose blunting of a projectile during high-speed deep penetration into concrete target may cause structural destruction and ballistic trajectory instability of the penetrator,obviously reducing the penetration efficiency of penetrator.Provided that the work of friction between projectile and target is totally transformed into the heat to melt penetrator material at its nose surface,an engineering model is established for the mass loss and nose-blunting of the ogive-nosed projectile.A dimensionless formula for the relative mass loss of projectile is obtained by introducing the dimensionless impact function I and geometry function N of the projectile.The critical value V c0of the initial striking velocity is formulated,and the mass loss of projectile tends to increase weakly nonlinearly with I/N when V0〉V c0,whilst the mass loss is proportional to the initial kinetic energy of projectile when V0
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| 关 键 词： | 质量损失 工程模型 混凝土 稳定性分析 鼻子 高速侵彻 磨料 大众 |
Stability analyses of the mass abrasive projectile high-speed penetrating into concrete target. Part Ⅰ： Engineering model for the mass loss and nose-blunting of ogive-nosed projectiles |
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| Hao Wu,;Xiao-Wei Chen,;Li-Lin He,;Qin Fang.Stability analyses of the mass abrasive projectile high-speed penetrating into concrete target. Part Ⅰ： Engineering model for the mass loss and nose-blunting of ogive-nosed projectiles[J].Acta Mechanica Sinica,2014(6):933-942. |
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| Authors: | 《Acta Mechanica Sinica》 |
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| Abstract: | Projectile High-speed penetration Concrete Mass loss Nose-blunting |
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| Keywords: | Projectile High-speed penetration Concrete Mass loss Nose-blunting |
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