Interface fracture assessment on honeycomb sandwich composite DCB specimens
► Modified elastic foundation model to analyse sandwich DCB specimens. ► Validation of the model by performing the complex 3D finite element analysis. ► Improved procedure is proposed for evaluating the interface fracture toughness. ► Failure load estimates of sandwich DCB specimens match well with...
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| Veröffentlicht in: | Engineering fracture mechanics 2012-10, Vol.93, p.108-118 |
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| container_title | Engineering fracture mechanics |
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| creator | Pradeep, K.R. Nageswara Rao, B. Srinivasan, S.M. Balasubramaniam, Krishnan |
| description | ► Modified elastic foundation model to analyse sandwich DCB specimens. ► Validation of the model by performing the complex 3D finite element analysis. ► Improved procedure is proposed for evaluating the interface fracture toughness. ► Failure load estimates of sandwich DCB specimens match well with existing test results.
This paper deals with the fracture analysis on the honeycomb sandwich composite double cantilever beam (DCB) specimens. Analytical expression for the strain energy release rate (GI) of the specimen is derived from modified elastic foundation model utilising the compliance derivative method. The results obtained from 3D finite element analysis for various delamination lengths compare well with the analytical results. A simple and improved procedure is suggested for evaluation of the interface fracture toughness (GIC), which takes into account the scatter in fracture data, and demonstrates its validity through comparison of existing test results with estimated failure loads. |
| doi_str_mv | 10.1016/j.engfracmech.2012.06.011 |
| format | Article |
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This paper deals with the fracture analysis on the honeycomb sandwich composite double cantilever beam (DCB) specimens. Analytical expression for the strain energy release rate (GI) of the specimen is derived from modified elastic foundation model utilising the compliance derivative method. The results obtained from 3D finite element analysis for various delamination lengths compare well with the analytical results. A simple and improved procedure is suggested for evaluation of the interface fracture toughness (GIC), which takes into account the scatter in fracture data, and demonstrates its validity through comparison of existing test results with estimated failure loads.</description><identifier>ISSN: 0013-7944</identifier><identifier>EISSN: 1873-7315</identifier><identifier>DOI: 10.1016/j.engfracmech.2012.06.011</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Assessments ; DCB specimen ; Exact solutions ; Face sheet delamination ; Failure ; Fracture mechanics ; Fracture toughness ; Honeycomb ; Honeycomb construction ; Honeycomb sandwich panel ; Mathematical analysis ; Strain energy release rate ; Three dimensional</subject><ispartof>Engineering fracture mechanics, 2012-10, Vol.93, p.108-118</ispartof><rights>2012 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c354t-59c86dc95b9b962904faf08a4d1ea61802eb4bc9cec436abbfc5cd439c8168f93</citedby><cites>FETCH-LOGICAL-c354t-59c86dc95b9b962904faf08a4d1ea61802eb4bc9cec436abbfc5cd439c8168f93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.engfracmech.2012.06.011$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids></links><search><creatorcontrib>Pradeep, K.R.</creatorcontrib><creatorcontrib>Nageswara Rao, B.</creatorcontrib><creatorcontrib>Srinivasan, S.M.</creatorcontrib><creatorcontrib>Balasubramaniam, Krishnan</creatorcontrib><title>Interface fracture assessment on honeycomb sandwich composite DCB specimens</title><title>Engineering fracture mechanics</title><description>► Modified elastic foundation model to analyse sandwich DCB specimens. ► Validation of the model by performing the complex 3D finite element analysis. ► Improved procedure is proposed for evaluating the interface fracture toughness. ► Failure load estimates of sandwich DCB specimens match well with existing test results.
This paper deals with the fracture analysis on the honeycomb sandwich composite double cantilever beam (DCB) specimens. Analytical expression for the strain energy release rate (GI) of the specimen is derived from modified elastic foundation model utilising the compliance derivative method. The results obtained from 3D finite element analysis for various delamination lengths compare well with the analytical results. A simple and improved procedure is suggested for evaluation of the interface fracture toughness (GIC), which takes into account the scatter in fracture data, and demonstrates its validity through comparison of existing test results with estimated failure loads.</description><subject>Assessments</subject><subject>DCB specimen</subject><subject>Exact solutions</subject><subject>Face sheet delamination</subject><subject>Failure</subject><subject>Fracture mechanics</subject><subject>Fracture toughness</subject><subject>Honeycomb</subject><subject>Honeycomb construction</subject><subject>Honeycomb sandwich panel</subject><subject>Mathematical analysis</subject><subject>Strain energy release rate</subject><subject>Three dimensional</subject><issn>0013-7944</issn><issn>1873-7315</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNkM1OwzAQhC0EEqXwDuHGJWEdJ258hPBXUYkLnC1ns6GumqR4U1DfnpRy4MhpZqWZT9oR4lJCIkHq61VC3XsTHLaEyyQFmSagE5DySExkMVPxTMn8WEwA5OhNlp2KM-YVAMx0ARPxPO8GCo1DivaUYRsocszE3FI3RH0XLfuOdti3VcSuq788LqPx2vTsB4ruytuIN4R-TPO5OGncmuniV6fi7eH-tXyKFy-P8_JmEaPKsyHODRa6RpNXpjI6NZA1roHCZbUkp2UBKVVZhQYJM6VdVTWYY52psSZ10Rg1FVcH7ib0H1viwbaekdZr11G_ZSul0iov0lGnwhyiGHrmQI3dBN-6sLMS7H5Au7J_BrT7AS1oCz_d8tCl8ZdPT8EyeuqQah8IB1v3_h-Ub016gNk</recordid><startdate>201210</startdate><enddate>201210</enddate><creator>Pradeep, K.R.</creator><creator>Nageswara Rao, B.</creator><creator>Srinivasan, S.M.</creator><creator>Balasubramaniam, Krishnan</creator><general>Elsevier Ltd</general><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>201210</creationdate><title>Interface fracture assessment on honeycomb sandwich composite DCB specimens</title><author>Pradeep, K.R. ; Nageswara Rao, B. ; Srinivasan, S.M. ; Balasubramaniam, Krishnan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c354t-59c86dc95b9b962904faf08a4d1ea61802eb4bc9cec436abbfc5cd439c8168f93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Assessments</topic><topic>DCB specimen</topic><topic>Exact solutions</topic><topic>Face sheet delamination</topic><topic>Failure</topic><topic>Fracture mechanics</topic><topic>Fracture toughness</topic><topic>Honeycomb</topic><topic>Honeycomb construction</topic><topic>Honeycomb sandwich panel</topic><topic>Mathematical analysis</topic><topic>Strain energy release rate</topic><topic>Three dimensional</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pradeep, K.R.</creatorcontrib><creatorcontrib>Nageswara Rao, B.</creatorcontrib><creatorcontrib>Srinivasan, S.M.</creatorcontrib><creatorcontrib>Balasubramaniam, Krishnan</creatorcontrib><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>Engineering fracture mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pradeep, K.R.</au><au>Nageswara Rao, B.</au><au>Srinivasan, S.M.</au><au>Balasubramaniam, Krishnan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interface fracture assessment on honeycomb sandwich composite DCB specimens</atitle><jtitle>Engineering fracture mechanics</jtitle><date>2012-10</date><risdate>2012</risdate><volume>93</volume><spage>108</spage><epage>118</epage><pages>108-118</pages><issn>0013-7944</issn><eissn>1873-7315</eissn><abstract>► Modified elastic foundation model to analyse sandwich DCB specimens. ► Validation of the model by performing the complex 3D finite element analysis. ► Improved procedure is proposed for evaluating the interface fracture toughness. ► Failure load estimates of sandwich DCB specimens match well with existing test results.
This paper deals with the fracture analysis on the honeycomb sandwich composite double cantilever beam (DCB) specimens. Analytical expression for the strain energy release rate (GI) of the specimen is derived from modified elastic foundation model utilising the compliance derivative method. The results obtained from 3D finite element analysis for various delamination lengths compare well with the analytical results. A simple and improved procedure is suggested for evaluation of the interface fracture toughness (GIC), which takes into account the scatter in fracture data, and demonstrates its validity through comparison of existing test results with estimated failure loads.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.engfracmech.2012.06.011</doi><tpages>11</tpages></addata></record> |
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| ispartof | Engineering fracture mechanics, 2012-10, Vol.93, p.108-118 |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Assessments DCB specimen Exact solutions Face sheet delamination Failure Fracture mechanics Fracture toughness Honeycomb Honeycomb construction Honeycomb sandwich panel Mathematical analysis Strain energy release rate Three dimensional |
| title | Interface fracture assessment on honeycomb sandwich composite DCB specimens |
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