| 局部冲击作用下刚塑性平板的动力响应和失效模式 |
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| 引用本文： | 陈发育,樊福如.局部冲击作用下刚塑性平板的动力响应和失效模式[J].爆炸与冲击,1993,13(3):233-242. |
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| 作者姓名： | 陈发育 樊福如 |
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| 作者单位： | 北京应用物理与计算数学研究所，北京应用物理与计算数学研究所 北京8009信箱 100088，北京8009信箱 100088 |
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| 摘 要： | 基于理想刚塑性的材料模型假定,同时考虑靶板弯曲塑性变形和剪切滑动,完整地分析了平板受刚性体撞击或受局部压力脉冲冲击的动力响应和失效模式。得到了撞击物侵彻深度、靶板穿透条件、塑性变形范围等特征变形破坏参数的解析表达式。讨论了撞击物速度、压力脉冲的冲量和形状等参量对响应和破坏模式的影响。比较了刚塑性理论分析结果与相关的实验和弹塑性数值计算结果。
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| 关 键 词： | 刚塑性平板 动力响应 失效 |
DYNAMIC RESPONSE AND FAILURE MODES OF AN INFINITELY LARGE RIGID-PLASTIC PLATE IMPACTED BY A RIGID CYLINDER OR A LOCAL IMPULSE |
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| Chen Faliang Fan Furu.DYNAMIC RESPONSE AND FAILURE MODES OF AN INFINITELY LARGE RIGID-PLASTIC PLATE IMPACTED BY A RIGID CYLINDER OR A LOCAL IMPULSE[J].Explosion and Shock Waves,1993,13(3):233-242. |
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| Authors: | Chen Faliang Fan Furu |
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| Abstract: | The dynamic response and failure modes with the interaction of bending deformation and shear sliding of an infinitely large rigid-plastic plate impacted by a rigid cylinder or a local impulse is theoretically analyzed herein. The analytical expressions are obtained for the embedding depth of the striker,the condition of perforation and the dimension of plastic deformation region of the target plate;and the influence of the initial velocity of the striker or the impulse and time shape of the local loading pulse on the response and failure modes are discussed. Comparisons show the present rigid-plastc solution is in good agreement with the related experimental and e-lastoplastic numerical results. |
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| Keywords: | rigid-plastic plate dynamic response shear sliding perforation |
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