| 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
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| Source Publication | POLYMER TESTING
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| 2013-12 | |
| Volume | 32Issue:8Pages:1358–1367 |
| ISSN | 0142-9418 |
| Abstract | 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. |
| Keyword | Viscoelasticity Creep Compliance Yield Strength Instrumented Indentation Upvc |
| Subject Area | 实验固体力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000329143700010 |
| Funding Organization | National Natural Science Foundation of China [11025212, 11272318, 11302231, 11372323] |
| Department | LNM实验平台 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47562 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Zhang, 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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