Effect of fiber angle orientation on a laminated composite single-lap adhesive joint

In the case of composite laminates with lap joints, one of the factors acting on the bonded joint behavior is the stacking sequence, most of research presented in the literature do not separate global effects (membrane and bending stiffness modification) and local effect (ply orientation near the ad...

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Bibliographic Details
Published in:Advanced composite materials 2013-06, Vol.22 (3), p.139-149
Main Authors: Purimpat, Satthumnuwong, Jérôme, Rousseau, Shahram, Aivazzadeh
Format: Article
Language:English
Subjects:
adhesive bonding
Adhesive joints
Anisotropy
Bend tests
Carbon
composite laminates
delamination
Laminates
Orientation
Stacking
stacking sequence
Stiffness
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Summary:In the case of composite laminates with lap joints, one of the factors acting on the bonded joint behavior is the stacking sequence, most of research presented in the literature do not separate global effects (membrane and bending stiffness modification) and local effect (ply orientation near the adhesive layer). This study deals with the characterization of such effects in the case of single-lap joints of carbon/epoxy laminates. In order to isolate the local effects, specific quasi-isotropic quasi-homogeneous stacking sequences are used. When the stiffness properties are maintained constant, strength variations of more than 30% are observed with respect to remoteness position of 0°-ply orientation. Tests performed with a symmetric laminate with bending anisotropy show that the bending stiffness also plays an important role in the joint behavior. Fracture behavior of delamination occurs between these plies and also depends on an out-of-plane position of 0°-ply laminate near the adhesive layer.
ISSN:0924-3046
1568-5519
DOI:10.1080/09243046.2013.782805