| 微米铜丝的低温力学性能测试 |
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| 引用本文： | 喇世仁,张兴义,刘伟,周军,周又和.微米铜丝的低温力学性能测试[J].实验力学,2016,31(2):193-198. |
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| 作者姓名： | 喇世仁 张兴义 刘伟 周军 周又和 |
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| 作者单位： | 西部灾害与环境力学教育部重点实验室,兰州大学土木工程与力学学院,甘肃730000 |
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| 基金项目： | 国家自然科学基金(11372121, 11202089,), 国家自然科学基金委创新研究群体(11421062) |
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| 摘 要： | 针对纤维材料变温环境力学性能测试的需要,在华中科技大学研制的纤维材料试验机的基础上引入了温控装置,从而实现纤维材料在高低温环境下的力学性能测试。采用该装置对不同直径微米铜丝在不同温度、不同拉伸速率条件下的力学性能开展实验研究,测试结果表明弹性模量和抗拉强度随温度的降低而线性增加,屈服强度的变化不太明显。另外,低温环境下微米铜丝的力学性能表现出与其直径相关的尺度效应,而这一现象在常温下一直没有观测到。最后,还研究了拉伸速率对微米铜丝的力学性能影响,结果表明,在现有装置的许用范围之内,拉伸速率对其力学性能的影响不大。
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| 关 键 词： | 微米铜丝 不同温度 不同拉伸速率 尺度效应 |
Low Temperature Mechanical Performance Test of Micron Copper Wire |
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| LA Shi-ren,ZHANG Xing-yi,LIU Wei,ZHOU Jun and ZHOU You-he.Low Temperature Mechanical Performance Test of Micron Copper Wire[J].Journal of Experimental Mechanics,2016,31(2):193-198. |
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| Authors: | LA Shi-ren ZHANG Xing-yi LIU Wei ZHOU Jun and ZHOU You-he |
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| Institution: | Key Laboratory of Mechanics on Disaster and Environment in Western China Attached to the Ministry of Education of China, College of Civil Engineering and Mechanics, Lanzhou University, Gansu 730000, China;Key Laboratory of Mechanics on Disaster and Environment in Western China Attached to the Ministry of Education of China, College of Civil Engineering and Mechanics, Lanzhou University, Gansu 730000, China;Key Laboratory of Mechanics on Disaster and Environment in Western China Attached to the Ministry of Education of China, College of Civil Engineering and Mechanics, Lanzhou University, Gansu 730000, China;Key Laboratory of Mechanics on Disaster and Environment in Western China Attached to the Ministry of Education of China, College of Civil Engineering and Mechanics, Lanzhou University, Gansu 730000, China;Key Laboratory of Mechanics on Disaster and Environment in Western China Attached to the Ministry of Education of China, College of Civil Engineering and Mechanics, Lanzhou University, Gansu 730000, China |
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| Abstract: | |
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| Keywords: | micron copper wire different temperature different stretching rates scale effect |
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