Phenomenological Modeling and Numerical Simulation of Relaxation in Bolted Composite Joints
The effects of various bolt preloads, viscoelasticity, and external applied static and dynamic loads on bolt load relaxation in a carbon/epoxy composite bolted joint have been studied. Both phenomenological modeling and finite element analysis (FEA) of bolt-connected three-point bending specimens we...
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| Veröffentlicht in: | Journal of composite materials 2008-09, Vol.42 (17), p.1709-1729 |
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| container_end_page | 1729 |
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| container_issue | 17 |
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| container_title | Journal of composite materials |
| container_volume | 42 |
| creator | Thoppul, Srinivasa D. Gibson, Ronald F. Ibrahim, Raouf A. |
| description | The effects of various bolt preloads, viscoelasticity, and external applied static and dynamic loads on bolt load relaxation in a carbon/epoxy composite bolted joint have been studied. Both phenomenological modeling and finite element analysis (FEA) of bolt-connected three-point bending specimens were employed in the studies. Relaxation of 1.25—4.25% over a period of 30 h was observed depending on the initial preload and applied external loads. Both static and dynamic applied loads were considered. It was observed that for any magnitude of external load the bolt load relaxation decreases with increasing initial preload. These findings emphasize the importance of the magnitude of the preload. Comparing the bolt load relaxation in steel and composite joints for the duration of 30 h, it was concluded that only about 1/3 of the relaxation in composite specimens is due to viscoelastic behavior of the polymer matrix in the composite, and the remaining 2/3 of the relaxation is due to other mechanisms such as bolt thread slip, plasticity and/ or external excitation. |
| doi_str_mv | 10.1177/0021998308092544 |
| format | Article |
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Both phenomenological modeling and finite element analysis (FEA) of bolt-connected three-point bending specimens were employed in the studies. Relaxation of 1.25—4.25% over a period of 30 h was observed depending on the initial preload and applied external loads. Both static and dynamic applied loads were considered. It was observed that for any magnitude of external load the bolt load relaxation decreases with increasing initial preload. These findings emphasize the importance of the magnitude of the preload. Comparing the bolt load relaxation in steel and composite joints for the duration of 30 h, it was concluded that only about 1/3 of the relaxation in composite specimens is due to viscoelastic behavior of the polymer matrix in the composite, and the remaining 2/3 of the relaxation is due to other mechanisms such as bolt thread slip, plasticity and/ or external excitation.</description><identifier>ISSN: 0021-9983</identifier><identifier>EISSN: 1530-793X</identifier><identifier>DOI: 10.1177/0021998308092544</identifier><identifier>CODEN: JCOMBI</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Applied sciences ; Composites ; Exact sciences and technology ; Forms of application and semi-finished materials ; Fundamental areas of phenomenology (including applications) ; Inelasticity (thermoplasticity, viscoplasticity...) ; Physics ; Polymer industry, paints, wood ; Solid mechanics ; Static elasticity (thermoelasticity...) ; Structural and continuum mechanics ; Technology of polymers</subject><ispartof>Journal of composite materials, 2008-09, Vol.42 (17), p.1709-1729</ispartof><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-dcdb8575f82bbdbf9b78af7ba556bd6c96ab0ead9f3669b7cbec4364ef16e3983</citedby><cites>FETCH-LOGICAL-c408t-dcdb8575f82bbdbf9b78af7ba556bd6c96ab0ead9f3669b7cbec4364ef16e3983</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/0021998308092544$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/0021998308092544$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,780,784,21819,27924,27925,43621,43622</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20625266$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Thoppul, Srinivasa D.</creatorcontrib><creatorcontrib>Gibson, Ronald F.</creatorcontrib><creatorcontrib>Ibrahim, Raouf A.</creatorcontrib><title>Phenomenological Modeling and Numerical Simulation of Relaxation in Bolted Composite Joints</title><title>Journal of composite materials</title><description>The effects of various bolt preloads, viscoelasticity, and external applied static and dynamic loads on bolt load relaxation in a carbon/epoxy composite bolted joint have been studied. Both phenomenological modeling and finite element analysis (FEA) of bolt-connected three-point bending specimens were employed in the studies. Relaxation of 1.25—4.25% over a period of 30 h was observed depending on the initial preload and applied external loads. Both static and dynamic applied loads were considered. It was observed that for any magnitude of external load the bolt load relaxation decreases with increasing initial preload. These findings emphasize the importance of the magnitude of the preload. Comparing the bolt load relaxation in steel and composite joints for the duration of 30 h, it was concluded that only about 1/3 of the relaxation in composite specimens is due to viscoelastic behavior of the polymer matrix in the composite, and the remaining 2/3 of the relaxation is due to other mechanisms such as bolt thread slip, plasticity and/ or external excitation.</description><subject>Applied sciences</subject><subject>Composites</subject><subject>Exact sciences and technology</subject><subject>Forms of application and semi-finished materials</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Inelasticity (thermoplasticity, viscoplasticity...)</subject><subject>Physics</subject><subject>Polymer industry, paints, wood</subject><subject>Solid mechanics</subject><subject>Static elasticity (thermoelasticity...)</subject><subject>Structural and continuum mechanics</subject><subject>Technology of polymers</subject><issn>0021-9983</issn><issn>1530-793X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp1UElLxDAUDqLgOHr3mIveqmnTps1RB1fGBRcQPJSsY4Y0GZMW9N-bseJB8PB4vPct8H0A7OfoKM_r-hihIqe0wahBtKjKcgNM8gqjrKb4ZRNM1nC2xrfBToxLhFCdl2QCXu_flPNdGusXRjALb7xU1rgFZE7C26FT4fv9aLrBst54B72GD8qyj_EyDp562ysJZ75b-Wh6Ba-9cX3cBVua2aj2fvYUPJ-fPc0us_ndxdXsZJ6JEjV9JoXkTVVXuik4l1xTXjdM15xVFeGSCEoYR4pJqjEhCRRciRKTUumcKJwiTcHh6LsK_n1QsW87E4Wyljnlh9hiTDGhFCUiGoki-BiD0u0qmI6FzzZH7brF9m-LSXLw481iqkEH5oSJv7oCkaIqCEm8bORFtlDt0g_Bpcj_-34BFhyAzg</recordid><startdate>20080901</startdate><enddate>20080901</enddate><creator>Thoppul, Srinivasa D.</creator><creator>Gibson, Ronald F.</creator><creator>Ibrahim, Raouf A.</creator><general>SAGE Publications</general><general>Technomic</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20080901</creationdate><title>Phenomenological Modeling and Numerical Simulation of Relaxation in Bolted Composite Joints</title><author>Thoppul, Srinivasa D. ; Gibson, Ronald F. ; Ibrahim, Raouf A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c408t-dcdb8575f82bbdbf9b78af7ba556bd6c96ab0ead9f3669b7cbec4364ef16e3983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Composites</topic><topic>Exact sciences and technology</topic><topic>Forms of application and semi-finished materials</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Inelasticity (thermoplasticity, viscoplasticity...)</topic><topic>Physics</topic><topic>Polymer industry, paints, wood</topic><topic>Solid mechanics</topic><topic>Static elasticity (thermoelasticity...)</topic><topic>Structural and continuum mechanics</topic><topic>Technology of polymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Thoppul, Srinivasa D.</creatorcontrib><creatorcontrib>Gibson, Ronald F.</creatorcontrib><creatorcontrib>Ibrahim, Raouf A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of composite materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Thoppul, Srinivasa D.</au><au>Gibson, Ronald F.</au><au>Ibrahim, Raouf A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phenomenological Modeling and Numerical Simulation of Relaxation in Bolted Composite Joints</atitle><jtitle>Journal of composite materials</jtitle><date>2008-09-01</date><risdate>2008</risdate><volume>42</volume><issue>17</issue><spage>1709</spage><epage>1729</epage><pages>1709-1729</pages><issn>0021-9983</issn><eissn>1530-793X</eissn><coden>JCOMBI</coden><abstract>The effects of various bolt preloads, viscoelasticity, and external applied static and dynamic loads on bolt load relaxation in a carbon/epoxy composite bolted joint have been studied. Both phenomenological modeling and finite element analysis (FEA) of bolt-connected three-point bending specimens were employed in the studies. Relaxation of 1.25—4.25% over a period of 30 h was observed depending on the initial preload and applied external loads. Both static and dynamic applied loads were considered. It was observed that for any magnitude of external load the bolt load relaxation decreases with increasing initial preload. These findings emphasize the importance of the magnitude of the preload. Comparing the bolt load relaxation in steel and composite joints for the duration of 30 h, it was concluded that only about 1/3 of the relaxation in composite specimens is due to viscoelastic behavior of the polymer matrix in the composite, and the remaining 2/3 of the relaxation is due to other mechanisms such as bolt thread slip, plasticity and/ or external excitation.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1177/0021998308092544</doi><tpages>21</tpages></addata></record> |
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| subjects | Applied sciences Composites Exact sciences and technology Forms of application and semi-finished materials Fundamental areas of phenomenology (including applications) Inelasticity (thermoplasticity, viscoplasticity...) Physics Polymer industry, paints, wood Solid mechanics Static elasticity (thermoelasticity...) Structural and continuum mechanics Technology of polymers |
| title | Phenomenological Modeling and Numerical Simulation of Relaxation in Bolted Composite Joints |
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