Determination of the intrinsic behavior of polymers using digital image correlation combined with video-monitored testing
[Display omitted] Three methods for the determination of the large-strain behavior of ductile polymers are compared in both tension and compression. Each method relies on some (non-contact) measurement of the strain and some approximations in the calculation of stress. The strain measurement techniq...
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| Veröffentlicht in: | International journal of solids and structures 2013-06, Vol.50 (11-12), p.1869-1878 |
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| container_end_page | 1878 |
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| container_issue | 11-12 |
| container_start_page | 1869 |
| container_title | International journal of solids and structures |
| container_volume | 50 |
| creator | Poulain, X. Kohlman, L.W. Binienda, W. Roberts, G.D. Goldberg, R.K. Benzerga, A.A. |
| description | [Display omitted]
Three methods for the determination of the large-strain behavior of ductile polymers are compared in both tension and compression. Each method relies on some (non-contact) measurement of the strain and some approximations in the calculation of stress. The strain measurement techniques include digital image correlation (DIC) and two techniques of video-based extensometry: marker tracking and area variation monitoring. Since the specimens are inevitably subject to structural plastic instabilities (necking in tension, barreling in compression) the strain and stress states are no longer uniform in the gauge section after the peak load. Under such circumstances, it is demonstrated that the three experimental methods can lead to significant differences. It is inferred from the comparative analysis that the method based on vertical marker tracking is not reliable. Validated by DIC, video-based area variation is shown to be a simple alternative way to obtain an excellent estimate of the intrinsic true stress–strain behavior of the polymer. |
| doi_str_mv | 10.1016/j.ijsolstr.2013.01.041 |
| format | Article |
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Three methods for the determination of the large-strain behavior of ductile polymers are compared in both tension and compression. Each method relies on some (non-contact) measurement of the strain and some approximations in the calculation of stress. The strain measurement techniques include digital image correlation (DIC) and two techniques of video-based extensometry: marker tracking and area variation monitoring. Since the specimens are inevitably subject to structural plastic instabilities (necking in tension, barreling in compression) the strain and stress states are no longer uniform in the gauge section after the peak load. Under such circumstances, it is demonstrated that the three experimental methods can lead to significant differences. It is inferred from the comparative analysis that the method based on vertical marker tracking is not reliable. Validated by DIC, video-based area variation is shown to be a simple alternative way to obtain an excellent estimate of the intrinsic true stress–strain behavior of the polymer.</description><identifier>ISSN: 0020-7683</identifier><identifier>EISSN: 1879-2146</identifier><identifier>DOI: 10.1016/j.ijsolstr.2013.01.041</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Compressing ; Digital ; Large strain behavior ; Markers ; Plastic instability ; Polymers ; Stress-strain relationships ; Stresses ; Tension–compression asymmetry ; Tracking ; True stress–strain measurement</subject><ispartof>International journal of solids and structures, 2013-06, Vol.50 (11-12), p.1869-1878</ispartof><rights>2013 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c426t-25f2b6a7fd13816526dcf04df7ddb72241e36506193551c6942d27982612d44c3</citedby><cites>FETCH-LOGICAL-c426t-25f2b6a7fd13816526dcf04df7ddb72241e36506193551c6942d27982612d44c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijsolstr.2013.01.041$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids></links><search><creatorcontrib>Poulain, X.</creatorcontrib><creatorcontrib>Kohlman, L.W.</creatorcontrib><creatorcontrib>Binienda, W.</creatorcontrib><creatorcontrib>Roberts, G.D.</creatorcontrib><creatorcontrib>Goldberg, R.K.</creatorcontrib><creatorcontrib>Benzerga, A.A.</creatorcontrib><title>Determination of the intrinsic behavior of polymers using digital image correlation combined with video-monitored testing</title><title>International journal of solids and structures</title><description>[Display omitted]
Three methods for the determination of the large-strain behavior of ductile polymers are compared in both tension and compression. Each method relies on some (non-contact) measurement of the strain and some approximations in the calculation of stress. The strain measurement techniques include digital image correlation (DIC) and two techniques of video-based extensometry: marker tracking and area variation monitoring. Since the specimens are inevitably subject to structural plastic instabilities (necking in tension, barreling in compression) the strain and stress states are no longer uniform in the gauge section after the peak load. Under such circumstances, it is demonstrated that the three experimental methods can lead to significant differences. It is inferred from the comparative analysis that the method based on vertical marker tracking is not reliable. Validated by DIC, video-based area variation is shown to be a simple alternative way to obtain an excellent estimate of the intrinsic true stress–strain behavior of the polymer.</description><subject>Compressing</subject><subject>Digital</subject><subject>Large strain behavior</subject><subject>Markers</subject><subject>Plastic instability</subject><subject>Polymers</subject><subject>Stress-strain relationships</subject><subject>Stresses</subject><subject>Tension–compression asymmetry</subject><subject>Tracking</subject><subject>True stress–strain measurement</subject><issn>0020-7683</issn><issn>1879-2146</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFkU-P0zAQxS0EEmXhKyAfuSTMOI6T3EDLX2mlvSxnK7Un7VSJXWy3qN-eVIXznkaaee-NZn5CvEeoEdB8PNR8yHHOJdUKsKkBa9D4Qmyw74ZKoTYvxQZAQdWZvnkt3uR8AADdDLARly9UKC0cxsIxyDjJsifJoSQOmZ3c0n48c0zXyTHOl4VSlqfMYSc977iMs-Rl3JF0MSWabykuLlsO5OUfLnt5Zk-xWmLgEtPaLJTL6n8rXk3jnOndv3onfn37-nT_o3p4_P7z_vND5bQypVLtpLZm7CaPTY-mVca7CbSfOu-3nVIaqTEtGByatkVnBq286oZeGVRea9fciQ-33GOKv0_rbrtwdjTPY6B4yhZb00GvB22el2qjW9No7FapuUldijknmuwxrY9IF4tgr1jswf7HYq9YLKBdsazGTzcjrTefmZLNjik48pzIFesjPxfxF6wim7Q</recordid><startdate>20130601</startdate><enddate>20130601</enddate><creator>Poulain, X.</creator><creator>Kohlman, L.W.</creator><creator>Binienda, W.</creator><creator>Roberts, G.D.</creator><creator>Goldberg, R.K.</creator><creator>Benzerga, A.A.</creator><general>Elsevier Ltd</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>20130601</creationdate><title>Determination of the intrinsic behavior of polymers using digital image correlation combined with video-monitored testing</title><author>Poulain, X. ; Kohlman, L.W. ; Binienda, W. ; Roberts, G.D. ; Goldberg, R.K. ; Benzerga, A.A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c426t-25f2b6a7fd13816526dcf04df7ddb72241e36506193551c6942d27982612d44c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Compressing</topic><topic>Digital</topic><topic>Large strain behavior</topic><topic>Markers</topic><topic>Plastic instability</topic><topic>Polymers</topic><topic>Stress-strain relationships</topic><topic>Stresses</topic><topic>Tension–compression asymmetry</topic><topic>Tracking</topic><topic>True stress–strain measurement</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Poulain, X.</creatorcontrib><creatorcontrib>Kohlman, L.W.</creatorcontrib><creatorcontrib>Binienda, W.</creatorcontrib><creatorcontrib>Roberts, G.D.</creatorcontrib><creatorcontrib>Goldberg, R.K.</creatorcontrib><creatorcontrib>Benzerga, A.A.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>International journal of solids and structures</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Poulain, X.</au><au>Kohlman, L.W.</au><au>Binienda, W.</au><au>Roberts, G.D.</au><au>Goldberg, R.K.</au><au>Benzerga, A.A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of the intrinsic behavior of polymers using digital image correlation combined with video-monitored testing</atitle><jtitle>International journal of solids and structures</jtitle><date>2013-06-01</date><risdate>2013</risdate><volume>50</volume><issue>11-12</issue><spage>1869</spage><epage>1878</epage><pages>1869-1878</pages><issn>0020-7683</issn><eissn>1879-2146</eissn><abstract>[Display omitted]
Three methods for the determination of the large-strain behavior of ductile polymers are compared in both tension and compression. Each method relies on some (non-contact) measurement of the strain and some approximations in the calculation of stress. The strain measurement techniques include digital image correlation (DIC) and two techniques of video-based extensometry: marker tracking and area variation monitoring. Since the specimens are inevitably subject to structural plastic instabilities (necking in tension, barreling in compression) the strain and stress states are no longer uniform in the gauge section after the peak load. Under such circumstances, it is demonstrated that the three experimental methods can lead to significant differences. It is inferred from the comparative analysis that the method based on vertical marker tracking is not reliable. Validated by DIC, video-based area variation is shown to be a simple alternative way to obtain an excellent estimate of the intrinsic true stress–strain behavior of the polymer.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.ijsolstr.2013.01.041</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | International journal of solids and structures, 2013-06, Vol.50 (11-12), p.1869-1878 |
| issn | 0020-7683 1879-2146 |
| language | eng |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; ScienceDirect Journals (5 years ago - present) |
| subjects | Compressing Digital Large strain behavior Markers Plastic instability Polymers Stress-strain relationships Stresses Tension–compression asymmetry Tracking True stress–strain measurement |
| title | Determination of the intrinsic behavior of polymers using digital image correlation combined with video-monitored testing |
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