Failure modes in open-cell foams with hollow struts
Failure modes in open-cell foams with hollow struts are analyzed. As the walls of the struts become thin, the failure mode of the foam can change from plastic collapse of struts loaded in bending to plastic collapse of struts loaded in direct compression. For very thin strut walls an elastic strut w...
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Veröffentlicht in: | Materials letters 2008-11, Vol.62 (28), p.4319-4321 |
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description | Failure modes in open-cell foams with hollow struts are analyzed. As the walls of the struts become thin, the failure mode of the foam can change from plastic collapse of struts loaded in bending to plastic collapse of struts loaded in direct compression. For very thin strut walls an elastic strut wrinkling failure mode is possible. Expressions for the failure modes are derived, and a failure mode map is presented to clarify when the various modes are expected. The analysis suggests that a hollow strut foam can be substantially stronger than a solid strut foam with the same relative density. |
doi_str_mv | 10.1016/j.matlet.2008.07.007 |
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As the walls of the struts become thin, the failure mode of the foam can change from plastic collapse of struts loaded in bending to plastic collapse of struts loaded in direct compression. For very thin strut walls an elastic strut wrinkling failure mode is possible. Expressions for the failure modes are derived, and a failure mode map is presented to clarify when the various modes are expected. The analysis suggests that a hollow strut foam can be substantially stronger than a solid strut foam with the same relative density.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2008.07.007</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Buckling ; Deformation and fracture ; Foams ; Mechanical properties</subject><ispartof>Materials letters, 2008-11, Vol.62 (28), p.4319-4321</ispartof><rights>2008 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-795da68e1437b4c8575b52881cfe3584e0123a425a7bf5ef45f73f473056fb53</citedby><cites>FETCH-LOGICAL-c337t-795da68e1437b4c8575b52881cfe3584e0123a425a7bf5ef45f73f473056fb53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matlet.2008.07.007$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Andrews, E.W.</creatorcontrib><creatorcontrib>Tashi, T.</creatorcontrib><creatorcontrib>Jun, S.</creatorcontrib><title>Failure modes in open-cell foams with hollow struts</title><title>Materials letters</title><description>Failure modes in open-cell foams with hollow struts are analyzed. As the walls of the struts become thin, the failure mode of the foam can change from plastic collapse of struts loaded in bending to plastic collapse of struts loaded in direct compression. For very thin strut walls an elastic strut wrinkling failure mode is possible. Expressions for the failure modes are derived, and a failure mode map is presented to clarify when the various modes are expected. The analysis suggests that a hollow strut foam can be substantially stronger than a solid strut foam with the same relative density.</description><subject>Buckling</subject><subject>Deformation and fracture</subject><subject>Foams</subject><subject>Mechanical properties</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kLFOwzAURS0EEqXwBwyZ2BLs2O5LFiRUUUCqxNKBzXKcZ9VVEhfboeLvSRVmprece3XfIeSe0YJRtno8FL1OHaaipLQqKBSUwgVZsAp4LmqoL8liwiCXAJ_X5CbGA6VU1FQsCN9o140Bs963GDM3ZP6IQ26w6zLrdR-zk0v7bO-7zp-ymMKY4i25srqLePd3l2S3edmt3_Ltx-v7-nmbG84h5VDLVq8qZIJDI0wlQTayrCpmLHJZCaSs5FqUUkNjJVohLXArgFO5so3kS_Iw1x6D_xoxJtW7eB6mB_RjVFxADZSxCRQzaIKPMaBVx-B6HX4Uo-osSB3ULEidBSkKahI0xZ7mGE4_fDsMKhqHg8HWBTRJtd79X_ALqERv2w</recordid><startdate>20081115</startdate><enddate>20081115</enddate><creator>Andrews, E.W.</creator><creator>Tashi, T.</creator><creator>Jun, S.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20081115</creationdate><title>Failure modes in open-cell foams with hollow struts</title><author>Andrews, E.W. ; Tashi, T. ; Jun, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-795da68e1437b4c8575b52881cfe3584e0123a425a7bf5ef45f73f473056fb53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Buckling</topic><topic>Deformation and fracture</topic><topic>Foams</topic><topic>Mechanical properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Andrews, E.W.</creatorcontrib><creatorcontrib>Tashi, T.</creatorcontrib><creatorcontrib>Jun, S.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Andrews, E.W.</au><au>Tashi, T.</au><au>Jun, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Failure modes in open-cell foams with hollow struts</atitle><jtitle>Materials letters</jtitle><date>2008-11-15</date><risdate>2008</risdate><volume>62</volume><issue>28</issue><spage>4319</spage><epage>4321</epage><pages>4319-4321</pages><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>Failure modes in open-cell foams with hollow struts are analyzed. As the walls of the struts become thin, the failure mode of the foam can change from plastic collapse of struts loaded in bending to plastic collapse of struts loaded in direct compression. For very thin strut walls an elastic strut wrinkling failure mode is possible. Expressions for the failure modes are derived, and a failure mode map is presented to clarify when the various modes are expected. The analysis suggests that a hollow strut foam can be substantially stronger than a solid strut foam with the same relative density.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2008.07.007</doi><tpages>3</tpages></addata></record> |
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subjects | Buckling Deformation and fracture Foams Mechanical properties |
title | Failure modes in open-cell foams with hollow struts |
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