| 聚碳酸酯拉伸力学性能的应变率相关性实验 |
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| 引用本文： | 马新忠,汪洋,王宇. 聚碳酸酯拉伸力学性能的应变率相关性实验[J]. 高分子材料科学与工程, 2009, 0(9) |
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| 作者姓名： | 马新忠 汪洋 王宇 |
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| 作者单位： | 中国科学技术大学近代力学系;中国科学技术大学中科院材料力学行为和设计重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(10672155) |
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| 摘 要： | 在MTS809材料试验机和自行研制的旋转盘式间接杆杆型冲击拉伸试验机上,对聚碳酸酯板材进行了准静态0.001s-1、0.01s-1、0.1s-1和高应变率400s-1、800s-1、1700s-1加载条件下的单向拉伸试验,得到了不同应变率下聚碳酸酯板材的拉伸工程应力-工程应变曲线。试验结果表明:聚碳酸酯的拉伸力学行为呈现明显的非线性变形特征;在文中实施的0.001s-1～1700s-1应变率加载范围内,聚碳酸酯拉伸力学性能具有明显的应变率相关性,其屈服应力和与屈服应力相对应的失稳应变均随应变率的增加有显著的增大。
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| 关 键 词： | 聚碳酸酯 拉伸性能 应变率相关性 |
Experiment of the Tensile Properties of Polycarbonate at Different Strain Rates |
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| MA Xin-zhong,WANG Yang,WANG Yu. Experiment of the Tensile Properties of Polycarbonate at Different Strain Rates[J]. Polymer Materials Science & Engineering, 2009, 0(9) |
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| Authors: | MA Xin-zhong WANG Yang WANG Yu |
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| Affiliation: | MA Xin-zhong,WANG Yang,WANG Yu(Department of Modern Mechanics,CAS Key Laboratory of Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei 230027,China) |
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| Abstract: | Using MTS809 testing machine and self-designed rotating disk bar-bar tensile impact apparatus,unidirectional tensile tests for polycarbonate plate were carried out at quasi-static and high strain-rate ( 0.001 s-1,0.01 s-1,0.1 s-1,400 s-1,800 s-1 and 1700 s-1) loading conditions within the rate range of 0.001 s-1 to 1700 s-1. The tensile engineering stress-engineering strain curves were obtained at different strain rates. Experimental results show that the tensile behavior of polycarbonate plate exhibits non... |
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| Keywords: | polycarbonate tensile property strain-rate dependence |
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