| 非对称质量磨蚀导致正侵彻弹体的弯曲屈服 |
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| 引用本文： | 赵军,陈小伟,金丰年,徐迎.非对称质量磨蚀导致正侵彻弹体的弯曲屈服[J].爆炸与冲击,2011,30(2):119-126. |
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| 作者姓名： | 赵军 陈小伟 金丰年 徐迎 |
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| 作者单位： | 解放军理工大学工程兵工程学院,江苏南京,210007;中国工程物理研究院总体工程研究所,四川 绵阳,621900 |
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| 基金项目： | 国家自然科学基金项目(51021001); 中国工程物理研究院学科发展基金重点项目(2009A0201009);中国工程物理研究院“双百人才”基金项目(ZX04001)~~ |
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| 摘 要： | 给出了在一定的非对称质量磨蚀条件下垂直于弹体侵彻方向的横向荷载,并结合考虑质量磨蚀的弹体轴向阻力计算方法,得到了正侵彻弹体在压弯联合作用下的屈服分析方法.讨论了影响弹体由于非对称质量磨蚀而弯曲屈服的主要因素.分析表明,弹体的危险截面在承受较大的轴向荷载时,对由非对称质量磨蚀导致的横向荷载极为敏感.
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| 关 键 词： | 爆炸力学 弯曲 非对称质量磨蚀 正侵彻弹体 屈服 混凝土靶 |
Bending of normal penetrating projectiles induced by asymmetrical mass abrasion |
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| ZHAO Jun,CHEN Xiao-wei,JIN Feng-nian,XU Ying.Bending of normal penetrating projectiles induced by asymmetrical mass abrasion[J].Explosion and Shock Waves,2011,30(2):119-126. |
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| Authors: | ZHAO Jun CHEN Xiao-wei JIN Feng-nian XU Ying |
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| Affiliation: | 1.EngineeringInstituteofEngineeringCorps,PLAUniversityofScienceandTechnology,2.Nanjing 210007,Jiangsu,China; |
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| Abstract: | Asymmetrical mass abrasion is one of the dominant reasons to cause a projectile bending,yawing and break when it strikes a concrete target normally at high velocity.The spherical cavity-expansion model is employed to construct the transverse load in the case of asymmetrical mass abrasion.With considering the axis drag force that can reflect the continuous varying of projectile nose shape,a method is proposed to analyze the yielding of a normal penetrating projectile under the combination of compression and ... |
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| Keywords: | mechanics of explosion bending asymmetrical mass abrasion normal penetration projectile yielding concrete target |
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