Experimental and Numerical Studies on the Failure Mechanism of the Composite Scarf Joints with Bonding Flaws
Bonded composite scarf joints with bonding flaws were tested to study their tensile behaviors. Based on the failure modes obtained by various observation methods, an improved numerical methodology with appropriate model width was developed, considering the marginal low stiffness regions in ± 45° pli...
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| Veröffentlicht in: | Applied composite materials 2021-10, Vol.28 (5), p.1399-1425 |
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| container_title | Applied composite materials |
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| creator | Su, Yuru Guan, Zhidong Wang, Xin Wang, Xiaodong Li, Zengshan Guo, Xia |
| description | Bonded composite scarf joints with bonding flaws were tested to study their tensile behaviors. Based on the failure modes obtained by various observation methods, an improved numerical methodology with appropriate model width was developed, considering the marginal low stiffness regions in ± 45° plies. The results show that the modelling approach provides accurate predictions on the strength, stiffness, and the failure modes considering variations in scarf angle, flaw size, and flaw location. Marginal low stiffness regions in ± 45° plies influence the stress distributions in the adhesive layer and the failure mode. Adhesive layer failure is the main cause of the final fracture of the pristine and the defective scarf joints, and damages within composite adherend especially interlaminar delamination, may accelerate the growth of the bondline stress at an early stage. The traditional damage tolerance design approach for bonded composite joints needs to be improved to avoid confusing and adventurous results. |
| doi_str_mv | 10.1007/s10443-021-09921-y |
| format | Article |
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Based on the failure modes obtained by various observation methods, an improved numerical methodology with appropriate model width was developed, considering the marginal low stiffness regions in ± 45° plies. The results show that the modelling approach provides accurate predictions on the strength, stiffness, and the failure modes considering variations in scarf angle, flaw size, and flaw location. Marginal low stiffness regions in ± 45° plies influence the stress distributions in the adhesive layer and the failure mode. Adhesive layer failure is the main cause of the final fracture of the pristine and the defective scarf joints, and damages within composite adherend especially interlaminar delamination, may accelerate the growth of the bondline stress at an early stage. The traditional damage tolerance design approach for bonded composite joints needs to be improved to avoid confusing and adventurous results.</description><identifier>ISSN: 0929-189X</identifier><identifier>EISSN: 1573-4897</identifier><identifier>DOI: 10.1007/s10443-021-09921-y</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Adhesives ; Bonded joints ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Classical Mechanics ; Composite materials ; Damage tolerance ; Failure mechanisms ; Failure modes ; Industrial Chemistry/Chemical Engineering ; Investigations ; Layers ; Materials Science ; Mathematical models ; Numerical analysis ; Numerical methods ; Polymer Sciences ; Scarf joints ; Stiffness ; Tensile strength</subject><ispartof>Applied composite materials, 2021-10, Vol.28 (5), p.1399-1425</ispartof><rights>The Author(s), under exclusive licence to Springer Nature B.V. 2021</rights><rights>The Author(s), under exclusive licence to Springer Nature B.V. 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-2561314e341fcae25826d5d040b2e857407f87086b6073030df5cb2ce2a1bff53</citedby><cites>FETCH-LOGICAL-c319t-2561314e341fcae25826d5d040b2e857407f87086b6073030df5cb2ce2a1bff53</cites><orcidid>0000-0002-5069-3306</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10443-021-09921-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10443-021-09921-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27922,27923,41486,42555,51317</link.rule.ids></links><search><creatorcontrib>Su, Yuru</creatorcontrib><creatorcontrib>Guan, Zhidong</creatorcontrib><creatorcontrib>Wang, Xin</creatorcontrib><creatorcontrib>Wang, Xiaodong</creatorcontrib><creatorcontrib>Li, Zengshan</creatorcontrib><creatorcontrib>Guo, Xia</creatorcontrib><title>Experimental and Numerical Studies on the Failure Mechanism of the Composite Scarf Joints with Bonding Flaws</title><title>Applied composite materials</title><addtitle>Appl Compos Mater</addtitle><description>Bonded composite scarf joints with bonding flaws were tested to study their tensile behaviors. Based on the failure modes obtained by various observation methods, an improved numerical methodology with appropriate model width was developed, considering the marginal low stiffness regions in ± 45° plies. The results show that the modelling approach provides accurate predictions on the strength, stiffness, and the failure modes considering variations in scarf angle, flaw size, and flaw location. Marginal low stiffness regions in ± 45° plies influence the stress distributions in the adhesive layer and the failure mode. Adhesive layer failure is the main cause of the final fracture of the pristine and the defective scarf joints, and damages within composite adherend especially interlaminar delamination, may accelerate the growth of the bondline stress at an early stage. 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Guan, Zhidong ; Wang, Xin ; Wang, Xiaodong ; Li, Zengshan ; Guo, Xia</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-2561314e341fcae25826d5d040b2e857407f87086b6073030df5cb2ce2a1bff53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adhesives</topic><topic>Bonded joints</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Classical Mechanics</topic><topic>Composite materials</topic><topic>Damage tolerance</topic><topic>Failure mechanisms</topic><topic>Failure modes</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Investigations</topic><topic>Layers</topic><topic>Materials Science</topic><topic>Mathematical models</topic><topic>Numerical analysis</topic><topic>Numerical methods</topic><topic>Polymer Sciences</topic><topic>Scarf joints</topic><topic>Stiffness</topic><topic>Tensile strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Su, Yuru</creatorcontrib><creatorcontrib>Guan, Zhidong</creatorcontrib><creatorcontrib>Wang, Xin</creatorcontrib><creatorcontrib>Wang, Xiaodong</creatorcontrib><creatorcontrib>Li, Zengshan</creatorcontrib><creatorcontrib>Guo, Xia</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>DELNET Engineering & Technology Collection</collection><jtitle>Applied composite materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Su, Yuru</au><au>Guan, Zhidong</au><au>Wang, Xin</au><au>Wang, Xiaodong</au><au>Li, Zengshan</au><au>Guo, Xia</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental and Numerical Studies on the Failure Mechanism of the Composite Scarf Joints with Bonding Flaws</atitle><jtitle>Applied composite materials</jtitle><stitle>Appl Compos Mater</stitle><date>2021-10-01</date><risdate>2021</risdate><volume>28</volume><issue>5</issue><spage>1399</spage><epage>1425</epage><pages>1399-1425</pages><issn>0929-189X</issn><eissn>1573-4897</eissn><abstract>Bonded composite scarf joints with bonding flaws were tested to study their tensile behaviors. Based on the failure modes obtained by various observation methods, an improved numerical methodology with appropriate model width was developed, considering the marginal low stiffness regions in ± 45° plies. The results show that the modelling approach provides accurate predictions on the strength, stiffness, and the failure modes considering variations in scarf angle, flaw size, and flaw location. Marginal low stiffness regions in ± 45° plies influence the stress distributions in the adhesive layer and the failure mode. Adhesive layer failure is the main cause of the final fracture of the pristine and the defective scarf joints, and damages within composite adherend especially interlaminar delamination, may accelerate the growth of the bondline stress at an early stage. 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| subjects | Adhesives Bonded joints Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Composite materials Damage tolerance Failure mechanisms Failure modes Industrial Chemistry/Chemical Engineering Investigations Layers Materials Science Mathematical models Numerical analysis Numerical methods Polymer Sciences Scarf joints Stiffness Tensile strength |
| title | Experimental and Numerical Studies on the Failure Mechanism of the Composite Scarf Joints with Bonding Flaws |
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