| 不同失效模式下轴压管状结构的吸能特性比较 |
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| 引用本文： | 邱信明,潘明乐,虞晓欢,王伟,刘雨喆.不同失效模式下轴压管状结构的吸能特性比较[J].力学与实践,2016,38(5):477-492. |
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| 作者姓名： | 邱信明 潘明乐 虞晓欢 王伟 刘雨喆 |
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| 作者单位： | 1. 清华大学航天航空学院, 北京 100084;
2. 中国核动力研究设计院核反应堆系统设计技术重点实验室, 成都 610041 |
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| 基金项目： | 国家自然科学基金资助项目(11372163) |
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| 摘 要： | 圆管、方管等管状结构受轴向的压缩作用,是工程上常见的一种结构受力形式.由于几何尺寸、边界条件和材料特性的不同,管状结构可以发生5种不同的失效模式:渐进屈曲、整体失稳、翻转、膨胀和劈裂.本文综述了近年来管状结构在轴压作用下不同失效模式的理论建模、实验测试和数值仿真研究结果,并对5种失效模式的力学响应、能量吸收特性进行了对比与分析.
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| 关 键 词： | 圆管 方管 渐进屈曲 整体失稳 翻转 膨胀 劈裂 |
| 收稿时间： | 2016-07-22 |
ANALYSIS OF THE ENERGY ABSORPTION PROPERTIES FOR TUBULAR STRUCTURE UNDER AXIAL COMPRESSION OF DIFFERENT FAILURE MODELS |
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| QIU Xinming,PAN Mingle,YU Xiaohuan,WANG Wei,LIU Yuzhe.ANALYSIS OF THE ENERGY ABSORPTION PROPERTIES FOR TUBULAR STRUCTURE UNDER AXIAL COMPRESSION OF DIFFERENT FAILURE MODELS[J].Mechanics and Engineering,2016,38(5):477-492. |
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| Authors: | QIU Xinming PAN Mingle YU Xiaohuan WANG Wei LIU Yuzhe |
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| Institution: | 1. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;
2. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610041, China |
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| Abstract: | Tubular structures such as circular tubes and square tubes under axial compression, are widely used as structural components in engineering applications. Considering the difference of tube geometries, boundary conditions and material properties, we classify the failure of tubes under axial compression into 5 different mechanisms: progressive buckling, global buckling, inversion, expansion and splitting. In this paper, the theoretical, experimental and numerical studies about the different failure modes of tubes under axial compression are reviewed, and the mechanical responses and energy absorption properties are compared and discussed. |
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| Keywords: | circular tube square tube progressive buckling global buckling inversion expansion splitting |
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