On the enhancement of bond toughness for Al/epoxy T-peel joints with laser treated substrates

Handle URI:
http://hdl.handle.net/10754/561895
Title:
On the enhancement of bond toughness for Al/epoxy T-peel joints with laser treated substrates
Authors:
Alfano, Marco; Lubineau, Gilles ( 0000-0002-7370-6093 ) ; Furgiuele, Franco M.; Paulino, Gláucio Hermogenes
Abstract:
The aim of the present work is to quantify the enhancement of bond toughness of Al/epoxy joints associated to substrates laser irradiation. For this reason a potential based cohesive model is employed and cohesive elements are implemented within the finite element framework. The influence of the cohesive properties on the predicted global response of the joints is firstly analyzed. The coupling between adherents plasticity and the cohesive properties is then discussed. It is shown that the global response is mainly affected by cohesive energy (the bond toughness) and cohesive strength. In turn, a proper cost function is defined which quantifies the deviation between numerical and experimental total dissipated energy. Based on a sensitivity analysis of the as-defined cost function, it is shown that an accurate estimation of the bond toughness can be expected from global data. The situation is different for the cohesive strength, whose estimation could require more advanced experimental observations or additional tests. The results reported in the present work allow us to conclude, in a reliable manner, that the laser surface treatment can lead to a large improvement of bond toughness. © 2011 Springer Science+Business Media B.V.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Publisher:
Springer Verlag
Journal:
International Journal of Fracture
Issue Date:
Oct-2011
DOI:
10.1007/s10704-011-9636-4
Type:
Article
ISSN:
03769429
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorAlfano, Marcoen
dc.contributor.authorLubineau, Gillesen
dc.contributor.authorFurgiuele, Franco M.en
dc.contributor.authorPaulino, Gláucio Hermogenesen
dc.date.accessioned2015-08-03T09:33:32Zen
dc.date.available2015-08-03T09:33:32Zen
dc.date.issued2011-10en
dc.identifier.issn03769429en
dc.identifier.doi10.1007/s10704-011-9636-4en
dc.identifier.urihttp://hdl.handle.net/10754/561895en
dc.description.abstractThe aim of the present work is to quantify the enhancement of bond toughness of Al/epoxy joints associated to substrates laser irradiation. For this reason a potential based cohesive model is employed and cohesive elements are implemented within the finite element framework. The influence of the cohesive properties on the predicted global response of the joints is firstly analyzed. The coupling between adherents plasticity and the cohesive properties is then discussed. It is shown that the global response is mainly affected by cohesive energy (the bond toughness) and cohesive strength. In turn, a proper cost function is defined which quantifies the deviation between numerical and experimental total dissipated energy. Based on a sensitivity analysis of the as-defined cost function, it is shown that an accurate estimation of the bond toughness can be expected from global data. The situation is different for the cohesive strength, whose estimation could require more advanced experimental observations or additional tests. The results reported in the present work allow us to conclude, in a reliable manner, that the laser surface treatment can lead to a large improvement of bond toughness. © 2011 Springer Science+Business Media B.V.en
dc.publisherSpringer Verlagen
dc.subjectBond toughnessen
dc.subjectCohesive zone modelen
dc.subjectLaser treatmenten
dc.titleOn the enhancement of bond toughness for Al/epoxy T-peel joints with laser treated substratesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentComposite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)en
dc.identifier.journalInternational Journal of Fractureen
dc.contributor.institutionDepartment of Mechanical Engineering, University of Calabria, Via P. Bucci 44C, Rende, Cosenza 87036, Italyen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 N. Matthew Avenue, Urbana, IL 61801, United Statesen
kaust.authorAlfano, Marcoen
kaust.authorLubineau, Gillesen
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