Formulation of cohesive failure load for bonded single lap joints using coupled elasto-plastic stress-diffusion model

A constitutive elasto-plastic model with moisture diffusion is developed for determining the cohesive strength of adhesively bonded single lap joints with identical adherend materials and thicknesses under tensile-shear loading. Static maximum shear stress failure theory is used for determining the...

Full description

Saved in:
Bibliographic Details
Published in:Journal of adhesion science and technology 2020-02, Vol.34 (4), p.427-442
Main Authors: Mazhari, Emad, Nassar, Sayed A., Belingardi, Giovanni, Gerini-Romagnoli, Marco
Format: Article
Language:English
Subjects:
Adhesive bonding
Adhesive joints
Bonded joints
Bonding strength
Cohesion
cohesive failure
coupled elasto-plastic stress-diffusion
coupled stress diffusion
Diffusion
Failure load
Fickian diffusion model
Lap joints
Moisture
moisture diffusion
Plastic deformation
Shear modulus
Shear stress
Single lap joint
Time dependence
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A constitutive elasto-plastic model with moisture diffusion is developed for determining the cohesive strength of adhesively bonded single lap joints with identical adherend materials and thicknesses under tensile-shear loading. Static maximum shear stress failure theory is used for determining the cohesive strength. A Fickian diffusion model is utilized in order to formulate a time- and location-dependent shear modulus for the adhesive. The study shows that increased plastic strain due to moisture diffusion would increase the cohesive failure load of adhesively bonded single lap joints.
ISSN:0169-4243
1568-5616
DOI:10.1080/01694243.2019.1670594