Determination of the critical load and energy release rate in mode II delamination using a meshfree method

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dc.contributor.authorPekbey, Yeliz
dc.contributor.authorHesar, Goudarz Ghanizadeh
dc.contributor.authorYildiz, Hasan
dc.contributor.authorMaleki, Farshid Khosravi
dc.date.accessioned2019-10-27T22:16:40Z
dc.date.available2019-10-27T22:16:40Z
dc.date.issued2014
dc.departmentEge Üniversitesien_US
dc.description.abstractSimulation of fracture by using numerical methods is important to treat geometries that change in time. In this study, both numerical and experimental investigations are presented for the delamination under mode II loading, detailing the derivation of the formulations in numerical simulations of fracture. The simulation of the delamination under mode II loading based on the cohesive segments model was investigated by using a mesh-free method. Then, an experimental investigation was used to verify the meshfree method's results. For tests under mode II loading, three-point end-notched flexure specimens, which are made of carbon/epoxy laminate (AS4/3501-6) which consists of 10 plies in [0](10) and [0/90/0/90/0](s) lay-up with delamination inserted in the middle of the laminate, were used for the interlaminar fracture toughness tests. The problem was solved for [0] 10, [0/45/-45/90/0](s), [0/90/0/90/0](s), [0/90/0/90/30](s), [0/90/0/90/45](s) and [0/90/0/90/60](s) laminates with midplane delaminations, and the results were verified for different composite materials. The critical fracture force, which can be experimentally measured, was used to calculate the mode II delamination fracture toughness of the carbon/epoxy laminate. In addition, values of the integral for 209 (11x19) and 253 (11x23) background meshes with equivalent interval sizes were compared. For a relatively fine background mesh, the critical load was converged. Results obtained from the meshfree element-free Galerkin method showed very good agreement with experimental data for single-mode delamination under mode II loading. The results presented will help in the implementation of mesh design techniques that protect numerical accuracy while minimizing computational expense.en_US
dc.identifier.doi10.1515/secm-2013-0114
dc.identifier.endpage238en_US
dc.identifier.issn0792-1233
dc.identifier.issn2191-0359
dc.identifier.issn0792-1233en_US
dc.identifier.issn2191-0359en_US
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage223en_US
dc.identifier.urihttps://doi.org/10.1515/secm-2013-0114
dc.identifier.urihttps://hdl.handle.net/11454/50305
dc.identifier.volume21en_US
dc.identifier.wosWOS:000332226400011en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWalter De Gruyter Gmbhen_US
dc.relation.ispartofScience and Engineering of Composite Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectdelamination fracture toughnessen_US
dc.subjectenergy release rateen_US
dc.subjectmode II loadingen_US
dc.titleDetermination of the critical load and energy release rate in mode II delamination using a meshfree methoden_US
dc.typeArticleen_US

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