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dc.contributor.authorBello, Idris
dc.contributor.authorAlowayed, Yasir
dc.contributor.authorAlbinmousa, Jafar
dc.contributor.authorLubineau, Gilles
dc.contributor.authorMerah, Nesar
dc.date.accessioned2020-12-22T10:52:44Z
dc.date.available2020-12-22T10:52:44Z
dc.date.issued2020-12-04
dc.identifier.citationBello, I., Alowayed, Y., Albinmousa, J., Lubineau, G., & Merah, N. (2021). Fatigue crack growth in laser-treated adhesively bonded composite joints: An experimental examination. International Journal of Adhesion and Adhesives, 105, 102784. doi:10.1016/j.ijadhadh.2020.102784
dc.identifier.issn0143-7496
dc.identifier.doi10.1016/j.ijadhadh.2020.102784
dc.identifier.urihttp://hdl.handle.net/10754/666590
dc.description.abstractCarbon fiber-reinforced polymers (CFRPs) are commonly used in structures in which weight and strength determine energy efficiency, such as automobiles and aircraft. CFRPs are light in weight, and they provide design flexibility, low thermal expansion, and high specific strength. Bonding CFRPs to make larger structures, however, is problematic. Recently, laser pretreatment has been used to improve bonding of CFRPs. This study investigates the effects of uniform surface pretreatment with a laser on the resistance of secondary bonded carbon fiber reinforced structures to mode-I fatigue crack growth. The joint fatigue limit was characterized by carrying out displacement-controlled cyclic testing on treated double cantilever beam specimens. A mid-infrared-range CO2 pulse laser with a 10.6 μm wavelength was used to treat the CFRP substrates with the aim to increase the substrates’ fatigue limit and thereby expand the design envelope for secondary bonding. The cured substrates were treated uniformly with either high (laser-ablated) or low (laser-cleaned) CO2 laser irradiation and compared with specimens that were treated with a baseline Teflon film treatment such that their bonding surfaces were smooth. Our results show that uniform laser treatment increased the fatigue limit evaluated at a threshold crack growth rate of 10−5 mm/cycle. Furthermore, the laser-ablated specimens, in which the carbon fibers were totally exposed, achieved triple the strain energy release rate threshold value of the laser-cleaned samples.
dc.description.sponsorshipThis research was supported by King Fahd University of Petroleum and Minerals (KFUPM) and funded by King Abdullah University of Science and Technology (KAUST) Baseline Research Funds, under the award number BAS/1/1315-01-01.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0143749620302475
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Adhesion and Adhesives. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Adhesion and Adhesives, [105, , (2020-12-04)] DOI: 10.1016/j.ijadhadh.2020.102784 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleFatigue crack growth in laser-treated adhesively bonded composite joints: An experimental examination
dc.typeArticle
dc.contributor.departmentMechanical Engineering
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentMechanical Engineering Program
dc.identifier.journalInternational Journal of Adhesion and Adhesives
dc.rights.embargodate2022-12-08
dc.eprint.versionPost-print
dc.contributor.institutionKing Fahd University of Minerals and Petroleum (KFUPM), Dhahran, Saudi Arabia
dc.identifier.volume105
dc.identifier.pages102784
kaust.personAlowayed, Yasir
kaust.personLubineau, Gilles
kaust.grant.numberBAS/1/1315-01-01
dc.identifier.eid2-s2.0-85097580043
refterms.dateFOA2022-01-03T05:26:14Z
kaust.acknowledged.supportUnitBaseline Research Funds
dc.date.published-online2020-12-04
dc.date.published-print2021-03


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