| 卵形弹体斜侵彻金属薄板花瓣型穿孔模型研究 |
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| 引用本文： | 吴海军,张庆明,初哲,王可慧,龚柏林,周刚.卵形弹体斜侵彻金属薄板花瓣型穿孔模型研究[J].北京理工大学学报,2018,38(S2):41-45. |
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| 作者姓名： | 吴海军 张庆明 初哲 王可慧 龚柏林 周刚 |
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| 作者单位： | 北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081;西北核技术研究所 强动载与效应重点实验室, 陕西, 西安 710024,北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081,西北核技术研究所 强动载与效应重点实验室, 陕西, 西安 710024,西北核技术研究所 强动载与效应重点实验室, 陕西, 西安 710024,西北核技术研究所 强动载与效应重点实验室, 陕西, 西安 710024,西北核技术研究所 强动载与效应重点实验室, 陕西, 西安 710024 |
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| 摘 要： | 针对卵形弹体斜侵彻金属薄板的问题，推导了裂纹扩展应变能、花瓣动能和花瓣弯曲应变能的表达式，基于能量守恒原理建立了预测弹体剩余速度的理论模型，并讨论了其适用范围.经初步验证，本文花瓣型穿孔模型的预测结果优于德马尔和贝尔金经验公式，在弹体变形可以忽略时，能够较好地给出垂直撞靶或倾角不大时弹体的剩余速度.
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| 关 键 词： | 卵形弹体 金属薄板 斜穿甲 花瓣型穿孔 |
| 收稿时间： | 2019/1/15 0:00:00 |
Study on Petalling Model for Oblique Penetration of Thin Metallic Plates by Ogive-Nose Projectiles |
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| WU Hai-jun,ZHANG Qing-ming,CHU Zhe,WANG Ke-hui,GONG Bo-lin and ZHOU Gang.Study on Petalling Model for Oblique Penetration of Thin Metallic Plates by Ogive-Nose Projectiles[J].Journal of Beijing Institute of Technology(Natural Science Edition),2018,38(S2):41-45. |
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| Authors: | WU Hai-jun ZHANG Qing-ming CHU Zhe WANG Ke-hui GONG Bo-lin and ZHOU Gang |
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| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi''an, Shaanxi 710024, China,State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China,Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi''an, Shaanxi 710024, China,Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi''an, Shaanxi 710024, China,Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi''an, Shaanxi 710024, China and Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi''an, Shaanxi 710024, China |
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| Abstract: | By using the analytical method of conical projectile, a modified petalling perforation model of the ogive-nose projectile oblique penetrating thin metallic plate was established according to the energy conservation principle. The formulas for the energy of the propagation of radial cracks, petal dynamic power and petal bending were deduced on the basis of the ogive-nose projectile''s characteristic. The application range of the model was discussed as well. The model provided in this paper could give satisfied predictions of the projectiles'' residual velocity of the projectile for both vertical and oblique penetration which is precise than the results of empirical formula if the deformation of the projectile can be neglected. |
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| Keywords: | explosive mechanics ogive-nose projectiles thin metallic plate oblique penetration petalling |
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