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research-article

A Coupled Peel and Shear Stress-Diffusion Model for Adhesively Bonded Single Lap Joints

[+] Author and Article Information
Emad Mazhari

Fastening and Joining Research Institute (FAJRI) Department of Mechanical Engineering Oakland University, Rochester, Michigan 48309 USA
emazhari@oakland.edu

Sayed A. Nassar

Fastening and Joining Research Institute (FAJRI) Department of Mechanical Engineering Oakland University, Rochester, Michigan 48309 USA
nassar@oakland.edu

1Corresponding author.

ASME doi:10.1115/1.4036786 History: Received December 19, 2016; Revised May 02, 2017

Abstract

In this study, the Fickian diffusion formulation is extended to the adhesive layer of a single lap joint model, in order to develop a coupled peel and shear stress-diffusion model. Constitutive equations are formulated for shear and peel stresses in terms of adhesive material properties that are time and location-dependent. Numerical solution is provided for the effect of diffusion on shear and peel stresses distribution. Detailed discussion of the results is presented. Keywords: adhesive bonding, constitutive modeling, moisture diffusion, peel stress

Copyright (c) 2017 by ASME
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