| 有机玻璃板材高低温力学行为试验研究 |
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| 引用本文： | 张官理,张振,张定国,郭新涛,胡平.有机玻璃板材高低温力学行为试验研究[J].材料导报,2011(Z1):360-361,364. |
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| 作者姓名： | 张官理 张振 张定国 郭新涛 胡平 |
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| 作者单位： | 北京航空材料研究院;空军驻沈飞军代表室;大连理工大学汽车工程学院; |
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| 摘 要： | 在温度为80～130℃、应变率为0.001～0.01/s的范围内通过WDW万能试验机对PMMA板材进行了恒应变率下的单轴拉伸试验。结果表明,PMMA板材力学行为具有明显的温度和应变率效应,玻璃态时其真应力-真应变曲线存在明显的非线性;玻璃化转变区以上时其真应力-真应变曲线近似呈线性关系。
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| 关 键 词： | PMMA 单轴拉伸试验 力学行为 |
Experimental Study on Mechanical Behavior of PMMA at High-low Temperature |
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| ZHANG Guanli,ZHANG Zhen,ZHANG Dingguo,GUO Xintao,HU Ping.Experimental Study on Mechanical Behavior of PMMA at High-low Temperature[J].Materials Review,2011(Z1):360-361,364. |
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| Authors: | ZHANG Guanli ZHANG Zhen ZHANG Dingguo GUO Xintao HU Ping |
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| Affiliation: | ZHANG Guanli~1,ZHANG Zhen~2,ZHANG Dingguo~1,GUO Xintao~1,HU Ping~3 (1 Beijing Institute of Aeronautical Materials,Beijing 100095,2 Military Representative Office of Airforce in Shenfei,Shenyang 110034,3 School of Automotive Engineering,Dalian University of Technology,Dalian 116024) |
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| Abstract: | Uniaxial tensile tests for PMMA at high-low temperature were performed on the WDW mechanics experiment machine.Tests were conducted for constant strain rates varying from 0.001/s to 0.01/s,and temperature varying from 80℃to 130℃.The results show that the mechanical behavior of PMMA is obviously affected by the strain rate and temperature,and its true stress-true strain curves exhibit nonlinear characteristics obviously below T_g while linear characteristics above T_g. |
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| Keywords: | PMMA uniaxial tensile tests mechanical behavior |
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