From diffuse damage to discrete crack: A coupled failure model for multi-stage progressive damage of composites
The multi-stage failure process and the coupled failure mechanisms have posed great challenges to damage analyses of fibre-reinforced composite laminates. In this study, a coupled failure model (CFM) is proposed which incorporates both smeared crack model (SCM) and discrete crack model (DCM) through...
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| Veröffentlicht in: | Computer methods in applied mechanics and engineering 2021-06, Vol.379, p.113760, Article 113760 |
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| container_title | Computer methods in applied mechanics and engineering |
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| creator | Lu, X. Guo, X.M. Tan, V.B.C. Tay, T.E. |
| description | The multi-stage failure process and the coupled failure mechanisms have posed great challenges to damage analyses of fibre-reinforced composite laminates. In this study, a coupled failure model (CFM) is proposed which incorporates both smeared crack model (SCM) and discrete crack model (DCM) through an energy-consistent thermodynamic framework. While SCM is well suited for describing crack nucleation and diffuse damage at initial failure stage, DCM offers a great tool to model the subsequent crack growth and its interaction with other failure modes. A hybrid SCM/DCM formulation is developed for CFM, so that the progressive failure process from diffuse damage to propagation of major cracks is characterized. Furthermore, inherent limitations of each standalone model, such as convergence difficulty and computational inefficiency, are effectively resolved by the proposed approach. Performance of CFM is demonstrated through a few numerical examples, including element validation, Off-axis tensile and open-hole tension tests of composite laminates. |
| doi_str_mv | 10.1016/j.cma.2021.113760 |
| format | Article |
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In this study, a coupled failure model (CFM) is proposed which incorporates both smeared crack model (SCM) and discrete crack model (DCM) through an energy-consistent thermodynamic framework. While SCM is well suited for describing crack nucleation and diffuse damage at initial failure stage, DCM offers a great tool to model the subsequent crack growth and its interaction with other failure modes. A hybrid SCM/DCM formulation is developed for CFM, so that the progressive failure process from diffuse damage to propagation of major cracks is characterized. Furthermore, inherent limitations of each standalone model, such as convergence difficulty and computational inefficiency, are effectively resolved by the proposed approach. Performance of CFM is demonstrated through a few numerical examples, including element validation, Off-axis tensile and open-hole tension tests of composite laminates.</description><identifier>ISSN: 0045-7825</identifier><identifier>EISSN: 1879-2138</identifier><identifier>DOI: 10.1016/j.cma.2021.113760</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>A. Composite structures ; B. Adaptive modelling ; C. Discrete crack model ; Crack initiation ; Crack propagation ; D. Smeared crack model ; Damage ; E. 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In this study, a coupled failure model (CFM) is proposed which incorporates both smeared crack model (SCM) and discrete crack model (DCM) through an energy-consistent thermodynamic framework. While SCM is well suited for describing crack nucleation and diffuse damage at initial failure stage, DCM offers a great tool to model the subsequent crack growth and its interaction with other failure modes. A hybrid SCM/DCM formulation is developed for CFM, so that the progressive failure process from diffuse damage to propagation of major cracks is characterized. Furthermore, inherent limitations of each standalone model, such as convergence difficulty and computational inefficiency, are effectively resolved by the proposed approach. Performance of CFM is demonstrated through a few numerical examples, including element validation, Off-axis tensile and open-hole tension tests of composite laminates.</description><subject>A. Composite structures</subject><subject>B. Adaptive modelling</subject><subject>C. Discrete crack model</subject><subject>Crack initiation</subject><subject>Crack propagation</subject><subject>D. Smeared crack model</subject><subject>Damage</subject><subject>E. Progressive damage</subject><subject>Failure analysis</subject><subject>Failure mechanisms</subject><subject>Failure modes</subject><subject>Fiber composites</subject><subject>Fracture mechanics</subject><subject>Laminates</subject><subject>Nucleation</subject><subject>Tension tests</subject><issn>0045-7825</issn><issn>1879-2138</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LAzEQxYMoWKsfwFvA865J9r-eSrEqFLzoOWRnJyXrbrMm2YLf3pSKR-cyMLzfm8cj5JazlDNe3vcpjCoVTPCU86wq2RlZ8LpqEsGz-pwsGMuLpKpFcUmuvO9ZnJqLBbEbZ0faGa1nj7RTo9ohDTZePDgMSMEp-HygKwp2ngbsqFZmmB3S0XY4UG0dHechmMSHIzo5u3PovTn8uVkd2XGy3gT01-RCq8Hjze9eko_N0_v6Jdm-Pb-uV9sEMlGEpGMsE21TtkxDjVAKUUOT16opclZ1SkPVIooWct3wpmGQgSoFthyLFqHQKluSu5NvDPQ1ow-yt7Pbx5dSFIJznueijCp-UoGz3jvUcnJmVO5bciaPvcpexl7lsVd56jUyjycGY_yDQSc9GNwDdsYhBNlZ8w_9A82vgcc</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Lu, X.</creator><creator>Guo, X.M.</creator><creator>Tan, V.B.C.</creator><creator>Tay, T.E.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><orcidid>https://orcid.org/0000-0003-1074-7522</orcidid><orcidid>https://orcid.org/0000-0002-2846-1947</orcidid></search><sort><creationdate>20210601</creationdate><title>From diffuse damage to discrete crack: A coupled failure model for multi-stage progressive damage of composites</title><author>Lu, X. ; Guo, X.M. ; Tan, V.B.C. ; Tay, T.E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-d0032b96b0fc8ec6228c948a95407dafc7bee2bc4f91990c3ca62eb1e5bec5fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>A. Composite structures</topic><topic>B. Adaptive modelling</topic><topic>C. Discrete crack model</topic><topic>Crack initiation</topic><topic>Crack propagation</topic><topic>D. Smeared crack model</topic><topic>Damage</topic><topic>E. Progressive damage</topic><topic>Failure analysis</topic><topic>Failure mechanisms</topic><topic>Failure modes</topic><topic>Fiber composites</topic><topic>Fracture mechanics</topic><topic>Laminates</topic><topic>Nucleation</topic><topic>Tension tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lu, X.</creatorcontrib><creatorcontrib>Guo, X.M.</creatorcontrib><creatorcontrib>Tan, V.B.C.</creatorcontrib><creatorcontrib>Tay, T.E.</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Computer methods in applied mechanics and engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lu, X.</au><au>Guo, X.M.</au><au>Tan, V.B.C.</au><au>Tay, T.E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>From diffuse damage to discrete crack: A coupled failure model for multi-stage progressive damage of composites</atitle><jtitle>Computer methods in applied mechanics and engineering</jtitle><date>2021-06-01</date><risdate>2021</risdate><volume>379</volume><spage>113760</spage><pages>113760-</pages><artnum>113760</artnum><issn>0045-7825</issn><eissn>1879-2138</eissn><abstract>The multi-stage failure process and the coupled failure mechanisms have posed great challenges to damage analyses of fibre-reinforced composite laminates. In this study, a coupled failure model (CFM) is proposed which incorporates both smeared crack model (SCM) and discrete crack model (DCM) through an energy-consistent thermodynamic framework. While SCM is well suited for describing crack nucleation and diffuse damage at initial failure stage, DCM offers a great tool to model the subsequent crack growth and its interaction with other failure modes. A hybrid SCM/DCM formulation is developed for CFM, so that the progressive failure process from diffuse damage to propagation of major cracks is characterized. Furthermore, inherent limitations of each standalone model, such as convergence difficulty and computational inefficiency, are effectively resolved by the proposed approach. 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| ispartof | Computer methods in applied mechanics and engineering, 2021-06, Vol.379, p.113760, Article 113760 |
| issn | 0045-7825 1879-2138 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | A. Composite structures B. Adaptive modelling C. Discrete crack model Crack initiation Crack propagation D. Smeared crack model Damage E. Progressive damage Failure analysis Failure mechanisms Failure modes Fiber composites Fracture mechanics Laminates Nucleation Tension tests |
| title | From diffuse damage to discrete crack: A coupled failure model for multi-stage progressive damage of composites |
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