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); Zhang, TH (reprint author), LNM, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
发表期刊	POLYMER TESTING
	2013-12
卷号	32 期号:8 页码:1358–1367
ISSN	0142-9418
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.
关键词	Viscoelasticity Creep Compliance Yield Strength Instrumented Indentation Upvc
学科领域	实验固体力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000329143700010
项目资助者	National Natural Science Foundation of China [11025212, 11272318, 11302231, 11372323]
课题组名称	LNM实验平台
论文分区	一类
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47562
专题	非线性力学国家重点实验室
通讯作者	Zhang, TH (reprint author), LNM, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
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,&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.

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