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工程力学  2015 

聚碳酸酯的单轴棘轮行为研究

DOI: 10.6052/j.issn.1000-4750.2013.05.0458, PP. 204-209

Keywords: 聚碳酸酯,单轴循环加载,棘轮行为,加载历史,时相关

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Abstract:

在常温常湿下,对聚碳酸酯(PC)材料进行了一系列单轴应变循环和非对称应力循环实验。讨论了PC材料在不同加载水平、加载历史、应力率和峰值保持时间下的循环变形特征。结果表明:PC材料在应变循环过程中体现出了一定程度的循环软化特性,其响应应力幅值在应变循环中随着循环周次的增加而下降,但不是很明显;PC材料在非对称应力循环加载过程中产生明显的棘轮行为,棘轮应变随着平均应力和应力幅值的增加而增加,并且平均应力的影响大于应力幅值的影响;加载历史对于棘轮变形行为的影响较为明显,但对应变循环特性影响不大;PC材料的棘轮变形随着应力率的减小和峰值保持时间的增加而增加,体现明显的时相关性。

References

[1]  Ohno N. Recent progress in constitutive modeling for ratcheting [J]. Materials Science Research International, 1997, 3(1): 1―10.
[2]  Kang G Z. Ratchetting: Recent progresses in phenomenon observation, constitutive modeling and application [J]. International Journal of Fatigue, 2008, 30(8): 1448―1472.
[3]  陈旭, 焦荣, 田涛. 棘轮效应预测及其循环本构模型研究进展[J]. 力学进展, 2003, 33(4): 461―470. Chen Xu, Jiao Rong, Tian Tao. Research advances of ratcheting effects and cyclic constitutive models [J]. Advances in Mechanics, 2003, 33(4): 461―470. (in Chinese)
[4]  刘宇杰, 康国政, 高庆, 李钊. 循环软化材料单轴时相关循环变形行为的实验研究[J]. 工程力学, 2008, 25(3): 68―72, 79.
[5]  Liu Yujie, Kang Guozheng, Gao Qing, Li Zhao. Experimental studies on uniaxial time-dependent cyclic deformations of cyclic softening material at room temperature [J]. Engineering Mechanics, 2008, 25(3): 68―72, 79. (in Chinese)
[6]  徐伟, 康国政, 刘宇杰, 王艳锋, 陈茁玮. 不饱和聚酯树脂的单轴应变循环特性和棘轮行为实验研究[J]. 工程力学, 2010, 27(8): 211―216. Xu Wei, Kang Guozheng, Liu Yujie, Wang Yanfeng, Chen Zhuowei. Experimental study on uniaxial strain cyclic characteristics and ratcheting behavior of unsaturated polyester resin [J]. Engineering Mechanics, 2010, 27(8): 211―216. (in Chinese)
[7]  Xia Z H, Shen X H, Ellyin F. Biaxial cyclic deformation of an epoxy resin: experiments and constitutive modeling [J]. Journal of Materials Science, 2005, 40(3): 643―654.
[8]  Chen X, Hui S. Ratcheting behavior of PTFE under cyclic compression [J]. Polymer Testing, 2005, 24(7): 829―833.
[9]  Zhang Zhe, Chen Xu, Wang Yanping. Uniaxial ratcheting behavior of polytetrafluoroethylene at elevated temperature [J]. Polymer Testing, 2010, 29(3): 352―357.
[10]  Lin Y C, Chen X M, Zhang J. Uniaxial ratcheting behavior of anisotropic conductive adhesive film under cyclic tension [J]. Polymer Testing, 2011, 30(1): 8―15.
[11]  Ghorbel E. A viscoplastic constitutive model for polymeric materials [J]. International Journal of Plasticity, 2008, 24(11): 2032―2058.
[12]  Hasan O A Boyce M C. A Constitutive model for the viscoelastic viscoplastic behavior of nonlinear glassy polymers [J]. Polymer Engineering and Science, 1995, 35(4): 331―344.
[13]  Drozdov A D. Cyclic thermo-viscoplasticity of high density polyethylene [J]. International Journal of Solids and Structures, 2010, 47(11): 1592―1602.
[14]  Drozdov A D, Christiansen J C. Cyclic viscoplasticity of high-density polyethylene: Experiments and modeling [J]. Computational Materials Science, 2007, 39(2): 465―480.
[15]  Cao K, Wang Y, Wang Y. Effects of strain rate and temperature on the tension behavior of polycarbonate [J]. Materials and Design, 2012, 38(1): 53―58.
[16]  Kitagawa M, Zhou D X. Stress-strain curves for solid polymers [J]. Polymer engineering and science, 1995, 35(22): 1725―1732.
[17]  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, 25(9): 131―134. Ma Xinzhong, Wang Yang, Wang Yu. Experiment of the tensile properties of polycarbonate at different strain rates [J]. Polymer Materials Science and Engineering, 2009, 25(9): 131―134. (in Chinese)
[18]  张定国, 张官理, 郭新涛, 厉蕾, 颜悦. 聚碳酸酯板材高-低温拉伸力学行为[J]. 现代塑料加工应用, 2011, 23(1): 5―7. Zhang Dingguo, Zhang Guanli, Guo Xintao, Li Lei, Yan Yue. Tensile mechanical behavior of PC sheet at high-low temperature [J]. Modern Plastics Processing and Applications. 2011, 23(1): 5―7. (in Chinese)
[19]  Fang Q Z, Wang T J, Beom H G, Li H M. Effect of cyclic loading on tensile properties of PC and PC/ABS [J]. Polymer Degradation and Stability, 2008, 93(8): 1422―1432.
[20]  Mindel M D, Brown N. The relationship of creep, recovery and fatigue in polycarbonate [J]. Journal of Materials Science, 1974, 9(10): 1661―1669.
[21]  Liu L B, Yee A F, Lewis J C, Gidley D W. Structural changes in glassy polycarbonate induced by cyclic stresses [J]. Journal of Non-Crystalline Solids, 1991, (131/132/133): 492―496.
[22]  GB/T 1040.1-2006, 塑料-拉伸性能的测定-第一部分: 总则[S]. 北京: 中国标准出版社, 2006. GB/T 1040.1-2006, Plastics-Determination of tensile properties-part 1: General principles [S]. Beijing: China Standards Press, 2006. (in Chinese)

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