Enhancement of laminate open-hole tensile strength by considering fiber waviness around holes

Basit Öğe Kaydı
dc.contributor.authorCinar, Kenan
dc.date.accessioned2024-10-29T17:58:27Z
dc.date.available2024-10-29T17:58:27Z
dc.date.issued2024
dc.departmentTekirdağ Namık Kemal Üniversitesi
dc.description.abstractBolted joints are widely used for joining laminated composites despite inducing stress concentrations and potential damage during drilling. This study explores an alternative approach using inserts embedded via vacuumassisted resin transfer molding (VARTM) to mitigate drilling-related issues. Mold-in cylindrical brass inserts were incorporated into the dry fabric and subsequently removed post-fabrication to assess their impact on open-hole tensile and bearing strength compared to drilled counterparts. Results show that non-drilled samples with various ply configurations exhibited significantly higher open-hole tensile loads-up to 54.8 %-compared to drilled samples, with similar bearing load values. A 3D progressive damage model incorporating fiber waviness around the hole was developed and validated by digital image correlation technique. Micro-CT images revealed improved fiber continuity around holes in non-drilled samples, supporting the observed strength improvements. Scanning electron microscope (SEM) images further elucidated failure mechanisms during bearing tests. The failure mechanism involves initial fiber kinking in the linear region (especially for drilled samples), followed by fiber crushing and fracture around the hole. Finally, fiber accumulation is disrupted by shearing. The non-drilling approach presents promising advancements in composite joint strength and durability.
dc.description.sponsorshipNamik Kemal University Research Fund [NKUBAP.00.17.AR.15.03]
dc.description.sponsorshipThe author acknowledges the support of the Namik Kemal University Research Fund under project code of NKUBAP.00.17.AR.15.03.
dc.identifier.doi10.1016/j.jmapro.2024.09.079
dc.identifier.endpage780
dc.identifier.issn1526-6125
dc.identifier.issn2212-4616
dc.identifier.scopus2-s2.0-85204703019
dc.identifier.scopusqualityQ1
dc.identifier.startpage766
dc.identifier.urihttps://doi.org/10.1016/j.jmapro.2024.09.079
dc.identifier.urihttps://hdl.handle.net/20.500.11776/14327
dc.identifier.volume131
dc.identifier.wosWOS:001324445500001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofJournal of Manufacturing Processes
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectLap-joint
dc.subjectFinite element model
dc.subjectMolding in insert
dc.subjectFiber waviness
dc.titleEnhancement of laminate open-hole tensile strength by considering fiber waviness around holes
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu