TY - JOUR
T1 - Study on the role of laser surface irradiation on damage and decohesion of Al/epoxy joints
AU - Alfano, Marco
AU - Lubineau, Gilles
AU - Furgiuele, Franco M.
AU - Paulino, Gláucio Hermogenes
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2012/12
Y1 - 2012/12
N2 - In this work we investigate the effect of laser irradiation on the bond toughness of aluminum/epoxy bonded joints. The evolution of substrate surface morphology and wettability, for various sets of laser process parameters (i.e. laser power, line spacing, scan speed), was investigated by means of Scanning Electron Microscopy (SEM) and contact angle measurements. A proper combination of power, line spacing and scan speed was then selected and adhesive bonded Al/epoxy T-peel joints were prepared and tested. For comparison, similar samples were produced using substrates with classical grit blasting surface treatment. Finally, post-failure SEM analyses of fracture surfaces were performed, and in order to typify the increase in bond toughness of the joints, finite element simulations were carried out using a potential based cohesive zone model of fracture. © 2012 Elsevier Ltd.
AB - In this work we investigate the effect of laser irradiation on the bond toughness of aluminum/epoxy bonded joints. The evolution of substrate surface morphology and wettability, for various sets of laser process parameters (i.e. laser power, line spacing, scan speed), was investigated by means of Scanning Electron Microscopy (SEM) and contact angle measurements. A proper combination of power, line spacing and scan speed was then selected and adhesive bonded Al/epoxy T-peel joints were prepared and tested. For comparison, similar samples were produced using substrates with classical grit blasting surface treatment. Finally, post-failure SEM analyses of fracture surfaces were performed, and in order to typify the increase in bond toughness of the joints, finite element simulations were carried out using a potential based cohesive zone model of fracture. © 2012 Elsevier Ltd.
UR - http://hdl.handle.net/10754/562428
UR - https://linkinghub.elsevier.com/retrieve/pii/S0143749612000449
UR - http://www.scopus.com/inward/record.url?scp=84864183498&partnerID=8YFLogxK
U2 - 10.1016/j.ijadhadh.2012.03.002
DO - 10.1016/j.ijadhadh.2012.03.002
M3 - Article
SN - 0143-7496
VL - 39
SP - 33
EP - 41
JO - International Journal of Adhesion and Adhesives
JF - International Journal of Adhesion and Adhesives
ER -