Indentation Size Effect in Pressure-Sensitive Polymer Based on A Criterion for Description of Yield Differential Effects and Shear Transformation-Mediated Plasticity
Indentation size effects in poly(methyl methacrylate) (PMMA) were studied through nanoindentation. Two factors of indentation size effects in PMMA, namely yield criterion and shear transformation-mediated plasticity, were analysed in detail. The yield criterion that considers strength differential (...
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| Veröffentlicht in: | Polymers 2019-03, Vol.11 (3), p.412 |
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| creator | Lin, Hui Jin, Tao Lv, Lin Ai, Qinglin |
| description | Indentation size effects in poly(methyl methacrylate) (PMMA) were studied through nanoindentation. Two factors of indentation size effects in PMMA, namely yield criterion and shear transformation-mediated plasticity, were analysed in detail. The yield criterion that considers strength differential (SD) effects and pressure sensitivity was constructed by performing the combined shear-compression experiments. The relationship between hardness and normal stress can then be obtained based on Tabot's relation. Shear transformation-mediated plasticity was also applied to model the measured hardness as a function of the indentation depth at different strain rates. Results show that the yield criterion contains the terms of SD effects and pressure sensitivity gives the best description of the yielding of PMMA. Additionally, the volume of single shear transformation zone calculated through the presented criterion agrees well with simulation and exhibits increases with increasing strain rate. Indentation size effects in PMMA under different strain rates were discussed and an appropriate indentation depth range was suggested for calculating the hardness and modulus. |
| doi_str_mv | 10.3390/polym11030412 |
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Two factors of indentation size effects in PMMA, namely yield criterion and shear transformation-mediated plasticity, were analysed in detail. The yield criterion that considers strength differential (SD) effects and pressure sensitivity was constructed by performing the combined shear-compression experiments. The relationship between hardness and normal stress can then be obtained based on Tabot's relation. Shear transformation-mediated plasticity was also applied to model the measured hardness as a function of the indentation depth at different strain rates. Results show that the yield criterion contains the terms of SD effects and pressure sensitivity gives the best description of the yielding of PMMA. Additionally, the volume of single shear transformation zone calculated through the presented criterion agrees well with simulation and exhibits increases with increasing strain rate. Indentation size effects in PMMA under different strain rates were discussed and an appropriate indentation depth range was suggested for calculating the hardness and modulus.</description><identifier>ISSN: 2073-4360</identifier><identifier>EISSN: 2073-4360</identifier><identifier>DOI: 10.3390/polym11030412</identifier><identifier>PMID: 30960396</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Experiments ; Hardness ; Mechanical properties ; Nanoindentation ; Plastic properties ; Polymethyl methacrylate ; Pressure effects ; Sensitivity ; Shear ; Shear strength ; Shear stress ; Size effects ; Strain rate ; Transformations ; Yield criteria</subject><ispartof>Polymers, 2019-03, Vol.11 (3), p.412</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2019 by the authors. 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c481t-6bb81a36c4a315ca017da1c710d3db6ca122aac7746ad26f2b1e24179c4ec8fa3</citedby><cites>FETCH-LOGICAL-c481t-6bb81a36c4a315ca017da1c710d3db6ca122aac7746ad26f2b1e24179c4ec8fa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473928/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473928/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,724,777,781,882,27905,27906,53772,53774</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30960396$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lin, Hui</creatorcontrib><creatorcontrib>Jin, Tao</creatorcontrib><creatorcontrib>Lv, Lin</creatorcontrib><creatorcontrib>Ai, Qinglin</creatorcontrib><title>Indentation Size Effect in Pressure-Sensitive Polymer Based on A Criterion for Description of Yield Differential Effects and Shear Transformation-Mediated Plasticity</title><title>Polymers</title><addtitle>Polymers (Basel)</addtitle><description>Indentation size effects in poly(methyl methacrylate) (PMMA) were studied through nanoindentation. Two factors of indentation size effects in PMMA, namely yield criterion and shear transformation-mediated plasticity, were analysed in detail. The yield criterion that considers strength differential (SD) effects and pressure sensitivity was constructed by performing the combined shear-compression experiments. The relationship between hardness and normal stress can then be obtained based on Tabot's relation. Shear transformation-mediated plasticity was also applied to model the measured hardness as a function of the indentation depth at different strain rates. Results show that the yield criterion contains the terms of SD effects and pressure sensitivity gives the best description of the yielding of PMMA. Additionally, the volume of single shear transformation zone calculated through the presented criterion agrees well with simulation and exhibits increases with increasing strain rate. Indentation size effects in PMMA under different strain rates were discussed and an appropriate indentation depth range was suggested for calculating the hardness and modulus.</description><subject>Experiments</subject><subject>Hardness</subject><subject>Mechanical properties</subject><subject>Nanoindentation</subject><subject>Plastic properties</subject><subject>Polymethyl methacrylate</subject><subject>Pressure effects</subject><subject>Sensitivity</subject><subject>Shear</subject><subject>Shear strength</subject><subject>Shear stress</subject><subject>Size effects</subject><subject>Strain rate</subject><subject>Transformations</subject><subject>Yield criteria</subject><issn>2073-4360</issn><issn>2073-4360</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkk9P3DAQxSPUChDlyLWy1Esvaf1vnc2lEl1oi0TVlZYeOFkTe1KMEntrO0jL9-n3rBe2CDoXW_J7v3kjT1WdMPpBiJZ-XIdhMzJGBZWM71WHnDailkLRV8_uB9VxSre0lJwpxZr96kDQVlHRqsPqz4W36DNkFzxZuXsk532PJhPnyTJiSlPEeoU-uezukCy3DTGSz5DQkmI5JYvoMsatvQ-RnGEy0a0fcKEn1w4HS85cYcbSxsGw4ycC3pLVDUIkVxF8KubxIUX9Ha2DXPDLAVJ2xuXNm-p1D0PC4915VP38cn61-FZf_vh6sTi9rI2cs1yrrpszEMpIEGxmgLLGAjMNo1bYThlgnAOYppEKLFc97xhyyZrWSDTzHsRR9emRu566Ea0pkSMMeh3dCHGjAzj98sW7G_0r3GklG9HyeQG83wFi-D1hynp0yeAwgMcwJc05VZwLyVmRvvtPehum6Mt4ms9mDS_VyqKqH1UmhpQi9k9hGNXbHdAvdqDo3z6f4En978fFXxH8sWc</recordid><startdate>20190304</startdate><enddate>20190304</enddate><creator>Lin, Hui</creator><creator>Jin, Tao</creator><creator>Lv, Lin</creator><creator>Ai, Qinglin</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20190304</creationdate><title>Indentation Size Effect in Pressure-Sensitive Polymer Based on A Criterion for Description of Yield Differential Effects and Shear Transformation-Mediated Plasticity</title><author>Lin, Hui ; Jin, Tao ; Lv, Lin ; Ai, Qinglin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c481t-6bb81a36c4a315ca017da1c710d3db6ca122aac7746ad26f2b1e24179c4ec8fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Experiments</topic><topic>Hardness</topic><topic>Mechanical properties</topic><topic>Nanoindentation</topic><topic>Plastic properties</topic><topic>Polymethyl methacrylate</topic><topic>Pressure effects</topic><topic>Sensitivity</topic><topic>Shear</topic><topic>Shear strength</topic><topic>Shear stress</topic><topic>Size effects</topic><topic>Strain rate</topic><topic>Transformations</topic><topic>Yield criteria</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Hui</creatorcontrib><creatorcontrib>Jin, Tao</creatorcontrib><creatorcontrib>Lv, Lin</creatorcontrib><creatorcontrib>Ai, Qinglin</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lin, Hui</au><au>Jin, Tao</au><au>Lv, Lin</au><au>Ai, Qinglin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Indentation Size Effect in Pressure-Sensitive Polymer Based on A Criterion for Description of Yield Differential Effects and Shear Transformation-Mediated Plasticity</atitle><jtitle>Polymers</jtitle><addtitle>Polymers (Basel)</addtitle><date>2019-03-04</date><risdate>2019</risdate><volume>11</volume><issue>3</issue><spage>412</spage><pages>412-</pages><issn>2073-4360</issn><eissn>2073-4360</eissn><abstract>Indentation size effects in poly(methyl methacrylate) (PMMA) were studied through nanoindentation. Two factors of indentation size effects in PMMA, namely yield criterion and shear transformation-mediated plasticity, were analysed in detail. The yield criterion that considers strength differential (SD) effects and pressure sensitivity was constructed by performing the combined shear-compression experiments. The relationship between hardness and normal stress can then be obtained based on Tabot's relation. Shear transformation-mediated plasticity was also applied to model the measured hardness as a function of the indentation depth at different strain rates. Results show that the yield criterion contains the terms of SD effects and pressure sensitivity gives the best description of the yielding of PMMA. Additionally, the volume of single shear transformation zone calculated through the presented criterion agrees well with simulation and exhibits increases with increasing strain rate. Indentation size effects in PMMA under different strain rates were discussed and an appropriate indentation depth range was suggested for calculating the hardness and modulus.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>30960396</pmid><doi>10.3390/polym11030412</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Experiments Hardness Mechanical properties Nanoindentation Plastic properties Polymethyl methacrylate Pressure effects Sensitivity Shear Shear strength Shear stress Size effects Strain rate Transformations Yield criteria |
| title | Indentation Size Effect in Pressure-Sensitive Polymer Based on A Criterion for Description of Yield Differential Effects and Shear Transformation-Mediated Plasticity |
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