| 不同应变率下PC,ABS和PC/ABS合金拉伸变形行为研究 |
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| 引用本文： | 尹征南,王铁军.不同应变率下PC,ABS和PC/ABS合金拉伸变形行为研究[J].应用数学和力学,2012,33(4):434-443. |
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| 作者姓名： | 尹征南 王铁军 |
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| 作者单位： | 1. 上海大学;上海市应用数学和力学研究所;上海市力学在能源工程中的应用重点实验室,上海200072
2. 西安交通大学工程力学系;强度与振动教育部重点实验室,西安710049 |
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| 摘 要： | 采用实验方法研究了PC(聚碳酸酯)、ABS(丙烯腈-丁二烯-苯乙烯)和PC/ABS合金(PC与ABS共混率为80∶20,60∶40,50∶50和40∶60),在不同应变率条件下的拉伸变形行为.采用MTS-810万能材料试验机和分离式Hopkinson拉杆实验系统分别进行了PC,ABS和PC/ABS合金室温条件下的准静态和冲击拉伸实验,得到了上述材料在不同应变率条件下的真应力-真应变曲线;通过对其变形特点的详细分析,讨论了应变率和ABS含量对拉伸变形的影响,并且给出了10-4s-1～103s-1应变率范围内屈服应力与应变率的线性关系式.
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| 关 键 词： | 高分子 PC/ABS合金 SHTP 应变率 |
Investigation of Tensile Deformation Behavior of PC,ABS and PC/ABS Blends From Low to High Strain Rates |
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| YIN Zheng-nan
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WANG Tie-jun.Investigation of Tensile Deformation Behavior of PC,ABS and PC/ABS Blends From Low to High Strain Rates[J].Applied Mathematics and Mechanics,2012,33(4):434-443. |
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| Authors: | YIN Zheng-nan WANG Tie-jun |
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| Institution: | 1.Shanghai Institute of Applied Mathematics and Mechanics,Shanghai Key Laboratory of Mechanics in Energy Engineering,Shanghai University,Shanghai 200072,P.R.China; 2.MOE Key Laboratory for Strength and Vibration,Department of Engineering Mechanics, Xi’an Jiaotong University,Xi’an 71004,P.R.China) |
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| Abstract: | The objective is to experimentally study the tensile deformation behavior of the polycarbonate(PC),acrylonitrile-butadiene-styrene(ABS) and PC/ABS blends(with the blending ratio of PC to ABS being 80∶20,60∶40,50∶50 and 40∶60) from low to high strain rates.Using universal MTS-810 machine and split Hopkinson Tension bar(SHTB) testing system,the quasi-static and impact tension tests were carried out at room temperature.The curves of true stress and true strain were obtained and the deformation behavior of PC,ABS and PC/ABS blends were characterized in detail.And the effects of strain rate on the yield stress from low to high strain rates were described with a linear relationship. |
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| Keywords: | polymer PC/ABS blend SHTP stain rate |
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