| 偏心率效应对金属圆柱管轴压性能的影响 |
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| 引用本文： | 宋宏伟,杜星文,范子杰. 偏心率效应对金属圆柱管轴压性能的影响[J]. 力学与实践, 2004, 26(6): 22-25 |
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| 作者姓名： | 宋宏伟 杜星文 范子杰 |
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| 作者单位： | 清华大学汽车系,汽车安全与节能国家重点实验室,北京,100084;哈尔滨工业大学复合材料研究所,哈尔滨,150001 |
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| 基金项目： | 中国博士后科学基金项目(2002-17)资助. |
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| 摘 要： | 用含有偏心率因子的直链塑性铰叠缩模型来分析金属圆柱管轴向压缩能量吸收，根据能量原理推导了瞬时载荷，从而获得压缩过程的载荷-位移曲线．讨论了偏心率对平均压缩载荷和载荷-位移曲线形貌的影响．实验结果与模型分析符合得很好．
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| 关 键 词： | 金属管 轴向压缩 能量吸收 刚塑性 偏心率 |
| 修稿时间： | 2003-09-16 |
Effect of eccentricity on the axial crushing behavior of round metal tubes |
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| SONG Hongwei DU Xingwen FAN Zijie. Effect of eccentricity on the axial crushing behavior of round metal tubes[J]. Mechanics and Engineering, 2004, 26(6): 22-25 |
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| Authors: | SONG Hongwei DU Xingwen FAN Zijie |
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| Abstract: | The classical problem of a round metal tube subjected to axial compressive loading was reexamined with the straight plastic hinge model including an eccentricity factor. Based on the energy equilibrium, the instantaneous load-displacement history was obtained. The influence of eccentricity on the configuration of load-displacement and mean crush load was discussed. The model reproduces enough experimental information. |
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| Keywords: | metal tube axial crushing energy absorption rigid plastic eccentricity |
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