Effect of adhesive thickness and overlap on the behavior of composite single-lap joints

The effect of adhesive thickness and adherent overlap on behavior of composite single-lap joints (SLJ) under tensile load is studied by using a 3D finite-element model. A bilinear Cohesive Zone Model (CZM) law is used to represent the adhesive behavior and its parameters are determined as a function...

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Bibliographic Details
Published in:Mechanics of advanced materials and structures 2021-06, Vol.28 (11), p.1111-1120
Main Authors: Fernández-Cañadas, Lorena M., Ivañez, Ines, Sanchez-Saez, Sonia, Barbero, Ever J.
Format: Article
Language:English
Subjects:
Adhesive joints
Adhesive thickness
Adhesives
Cantilever beams
cohesive zone model
experimental test
Finite element method
finite element model
Flexing
Lap joints
Mathematical models
overlap length
Peak load
Tensile stress
Thickness
Three dimensional models
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Summary:The effect of adhesive thickness and adherent overlap on behavior of composite single-lap joints (SLJ) under tensile load is studied by using a 3D finite-element model. A bilinear Cohesive Zone Model (CZM) law is used to represent the adhesive behavior and its parameters are determined as a function of adhesive thickness by carrying out Double Cantilever Beam and End-Notched Flexure tests. The performance of SLJ is defined by peak load, maximum shear, and peel stresses. For the range of adhesive thicknesses considered, both maximum shear and peel stresses decrease with increasing adhesive thickness, while they increase with increasing overlap length.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2019.1639086