Characterization of the viscoelastic-plastic properties of UPVC by instrumented sharp indentation

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	Characterization of the viscoelastic-plastic properties of UPVC by instrumented sharp indentation
	Peng GJ(彭光健); Feng YH(冯义辉); Huan Y(郇勇); Zhang TH(张泰华)
刊名	POLYMER TESTING
	2013-12
通讯作者邮箱	zhangth@zjut.edu.cn
卷号	32 期号:8 页码:1358–1367
关键词	Viscoelasticity Creep compliance Yield strength Instrumented indentation UPVC
ISSN号	0142-9418
通讯作者	Zhang, TH (reprint author), LNM, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
产权排序	[Peng, Guangjian; Zhang, Taihua] Zhejiang Univ Technol, Key Lab E&M, Minist Educ & Zhejiang Prov, Hangzhou 310014, Zhejiang, Peoples R China; [Feng, Yihui; Huan, Yong; Zhang, Taihua] Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	The yielding behavior of glassy polymers may be sensitive to the hydrostatic pressure and also be influenced by the strain rate. Thus, the yield strength is a function of hydrostatic pressure and strain rate instead of a constant. In this paper, using dimensional analysis and finite element simulations, we established a method to estimate the yield strength of glassy polymers by instrumented indentation. Together with the method for determining shear creep compliance proposed in our previous work, the viscoelastic-plastic properties of glassy polymers can be extracted from a single indentation load-depth curve. Applications were illustrated on unplasticized polyvinyl chloride (UPVC). The shear creep compliance and yield strength of UPVC were successfully determined by a single indentation test. Using these parameters, the true stress–strain curves of UPVC under different strain rates were approximately predicted according to a linear viscoelastic-perfectly plastic constitutive description.
学科主题	实验固体力学
分类号	一类
收录类别	SCI ; EI
资助信息	National Natural Science Foundation of China [11025212, 11272318, 11302231, 11372323]
原文出处	http://dx.doi.org/10.1016/j.polymertesting.2013.08.016
语种	英语
WOS记录号	WOS:000329143700010
公开日期	2013-12-08
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47562]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Peng GJ,Feng YH,Huan Y,et al. Characterization of the viscoelastic-plastic properties of UPVC by instrumented sharp indentation[J]. POLYMER TESTING,2013,32(8):1358–1367.
APA	Peng GJ,Feng YH,Huan Y,&Zhang TH.(2013).Characterization of the viscoelastic-plastic properties of UPVC by instrumented sharp indentation.POLYMER TESTING,32(8),1358–1367.
MLA	Peng GJ,et al."Characterization of the viscoelastic-plastic properties of UPVC by instrumented sharp indentation".POLYMER TESTING 32.8(2013):1358–1367.