| 爆炸载荷作用下单向加筋方板的大挠度塑性动力响应分析 |
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| 引用本文： | 刘敬喜,刘尧,汤皓泉,李威.爆炸载荷作用下单向加筋方板的大挠度塑性动力响应分析[J].振动与冲击,2011,30(4):182-187. |
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| 作者姓名： | 刘敬喜 刘尧 汤皓泉 李威 |
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| 作者单位： | 1.华中科技大学船舶与海洋工程学院，武汉，430074；2.中国舰船研究设计中心 武汉 430064 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助项目 |
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| 摘 要： | 从分别列出加筋板面板以及加强筋的运动方程出发,详细分析了爆炸载荷作用下单向加筋固支方板的大挠度塑性动力响应.分析表明:取决于加强筋的相对刚度以及载荷峰值的大小,加筋板的运动将呈现三种不同的模式.限于讨论加筋板的总体变形模式.首先讨论了同时计及弯矩和面力(轴力)作用的解析解,在此基础上进一步讨论了忽略弯矩影响的薄膜解以及能量解.理论结果与已有的试验结果在多数情况下符合良好,表明提出的简化理论分析方法能对爆炸载荷下单向加筋固支方板的永久变形做出较为合理的预报.
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| 关 键 词： | 加筋板 爆炸载荷 失效模式 大变形 动力塑性响应 |
| 收稿时间： | 2009-12-7 |
| 修稿时间： | 2010-8-10 |
Plastic and large deflection dynamic response analysis of a one way stiffened square plate subjected to blast loads |
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| LIU Jing-xi,LIU Yao,TANG Hao-quan,LI Wei.Plastic and large deflection dynamic response analysis of a one way stiffened square plate subjected to blast loads[J].Journal of Vibration and Shock,2011,30(4):182-187. |
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| Authors: | LIU Jing-xi LIU Yao TANG Hao-quan LI Wei |
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| Affiliation: | 1.School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074,China;2.China Ship Development and Design Center, Wuhan 430064,China |
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| Abstract: | The plastic and large deflection dynamic response of a built-in square plate with one way stiffener under blast loading was discussed based on the motion equations of both the panel and stiffener herein.The analysis indicated that there are three models for the stiffened plate,depending on the relative rigidity of the stiffener and the peak of the load applied.Here,the global deflection model was discussed only.First,the motion equations and calculation formulas for the permanent transverse deflection were ... |
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| Keywords: | stiffened plates blast load failure mode large deflections plastic dynamic response |
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