In situ three-dimensional X-ray microtomography of an auxetic foam under tension
X-ray microtomography has the potential to unambiguously identify the predominant deformation mechanisms responsible for the auxetic response of polymeric foams. It has been performed in situ on an auxetic polyurethane foam subjected to incremental uniaxial tensile loading. A Poisson’s ratio of −0.2...
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| Veröffentlicht in: | Scripta materialia 2009-02, Vol.60 (4), p.232-235 |
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| creator | McDonald, S.A. Ravirala, N. Withers, P.J. Alderson, A. |
| description | X-ray microtomography has the potential to unambiguously identify the predominant deformation mechanisms responsible for the auxetic response of polymeric foams. It has been performed in situ on an auxetic polyurethane foam subjected to incremental uniaxial tensile loading. A Poisson’s ratio of −0.20 measured from localized microstructural changes observed during the tomographic sequence compares well with the bulk value of −0.21 obtained by videoextensometry. Evidence obtained by digital image correlation for straightening of bent ribs and rotation of junctions connecting ribs during straining is presented. |
| doi_str_mv | 10.1016/j.scriptamat.2008.10.013 |
| format | Article |
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Evidence obtained by digital image correlation for straightening of bent ribs and rotation of junctions connecting ribs during straining is presented.</description><subject>Auxetic foams</subject><subject>Deformation mechanisms</subject><subject>Digital image correlation</subject><subject>Foams</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Ribs</subject><subject>Straightening</subject><subject>Three dimensional</subject><subject>X-ray microtomography</subject><issn>1359-6462</issn><issn>1872-8456</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEQxYMoWKvfISfxsjXZJLvpUYt_CgU9KHhb0mRiU3Y3a5IV--1NqeBND8MMM7_3YB5CmJIZJbS63s6iDm5IqlNpVhIi83pGKDtCEyrrspBcVMd5ZmJeVLwqT9FZjFtCSEVLOkHPyx5Hl0acNgGgMK6DPjrfqxa_FUHtcOd08Ml3_j2oYbPD3mLVYzV-QXIaW686PPYGAk4H4Tk6saqNcPHTp-j1_u5l8Visnh6Wi5tVoZksU0F5teZMa6EFo4YzTipDmazt2ig7p0pYy9VacqVrqoyA2tYETC00EQSEKNkUXR58h-A_Roip6VzU0LaqBz_GhmWIUznP4NWfICWyLAkTuaZIHtD8cowBbDME16mwy1CzT7vZNr9pN_u095ecdpbeHqSQf_50EDLooNdgXACdGuPd_ybf3weOlw</recordid><startdate>20090201</startdate><enddate>20090201</enddate><creator>McDonald, S.A.</creator><creator>Ravirala, N.</creator><creator>Withers, P.J.</creator><creator>Alderson, A.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>8BQ</scope></search><sort><creationdate>20090201</creationdate><title>In situ three-dimensional X-ray microtomography of an auxetic foam under tension</title><author>McDonald, S.A. ; Ravirala, N. ; Withers, P.J. ; Alderson, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c382t-146b43cc5c531d43406d1387fbdaf91a5ff4ab84ac71ad5e7f70ed75c050e5523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Auxetic foams</topic><topic>Deformation mechanisms</topic><topic>Digital image correlation</topic><topic>Foams</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Ribs</topic><topic>Straightening</topic><topic>Three dimensional</topic><topic>X-ray microtomography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>McDonald, S.A.</creatorcontrib><creatorcontrib>Ravirala, N.</creatorcontrib><creatorcontrib>Withers, P.J.</creatorcontrib><creatorcontrib>Alderson, A.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>METADEX</collection><jtitle>Scripta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>McDonald, S.A.</au><au>Ravirala, N.</au><au>Withers, P.J.</au><au>Alderson, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>In situ three-dimensional X-ray microtomography of an auxetic foam under tension</atitle><jtitle>Scripta materialia</jtitle><date>2009-02-01</date><risdate>2009</risdate><volume>60</volume><issue>4</issue><spage>232</spage><epage>235</epage><pages>232-235</pages><issn>1359-6462</issn><eissn>1872-8456</eissn><abstract>X-ray microtomography has the potential to unambiguously identify the predominant deformation mechanisms responsible for the auxetic response of polymeric foams. 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| identifier | ISSN: 1359-6462 |
| ispartof | Scripta materialia, 2009-02, Vol.60 (4), p.232-235 |
| issn | 1359-6462 1872-8456 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Auxetic foams Deformation mechanisms Digital image correlation Foams Mechanical properties Microstructure Ribs Straightening Three dimensional X-ray microtomography |
| title | In situ three-dimensional X-ray microtomography of an auxetic foam under tension |
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