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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
Source PublicationPOLYMER TESTING
2013-12
Volume32Issue:8Pages:1358–1367
ISSN0142-9418
AbstractThe 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.
KeywordViscoelasticity Creep Compliance Yield Strength Instrumented Indentation Upvc
Subject Area实验固体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000329143700010
Funding OrganizationNational Natural Science Foundation of China [11025212, 11272318, 11302231, 11372323]
DepartmentLNM实验平台
Classification一类
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47562
Collection非线性力学国家重点实验室
Corresponding AuthorZhang, TH (reprint author), LNM, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
Recommended Citation
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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