Numerical study of lap joints with composite adhesives and composite adherends subjected to in-plane and transverse loads

In this paper, single lap joints for joining fibre composites were modeled and a three-dimensional finite element method was used to study the joint strength under in-plane tensile and out-of-plane loadings. The behaviour of all the members was assumed to be linear elastic. The adherends were consid...

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Bibliographic Details
Published inInternational journal of adhesion and adhesives Vol. 28; no. 8; pp. 411 - 418
Main Authors Khalili, S.M.R., Khalili, S., Pirouzhashemi, M.R., Shokuhfar, A., Mittal, R.K.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Kidlington Elsevier Ltd 01.12.2008
Elsevier
Subjects
Application fields
Applied sciences
B. Composites
C. Finite element stress analysis
Exact sciences and technology
Lap joints
Polymer industry, paints, wood
Technology of polymers
B. Composites
C. Finite element stress analysis
Lap joints
Lap joint
Mechanical model
Fiber reinforced material
Epoxy resin
Theoretical study
Mechanical properties
Shear strength
Tensile property
Mineral fiber
Modeling
Composite material
Finite element method
Concentration effect
Numerical simulation
Glass fiber
Adhesive
Fracture mode
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Summary:In this paper, single lap joints for joining fibre composites were modeled and a three-dimensional finite element method was used to study the joint strength under in-plane tensile and out-of-plane loadings. The behaviour of all the members was assumed to be linear elastic. The adherends were considered to be orthotropic materials while the adhesive could be neat resin or reinforced one. The largest values of shear and peel stresses occurred near the ends of the adhesive region, as expected. The values and the rate of variation in peel stress was more than that of shear stress. By changing the properties and behaviour of adhesive from neat epoxy (isotropic) to fibre composite adhesive (orthotropic) and with various fibre volume fractions of glass fibre, the ultimate bond strength increased as the fibre volume fraction increased, in both tensile and transverse loadings. Also, changing the orientation of fibres in the adhesive region with respect to the global axes influenced the bond strength.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0143-7496
1879-0127
DOI:10.1016/j.ijadhadh.2008.04.010