Analytical and Numerical Analysis of Adhesive Joints for Vehicle Application
No Thumbnail Available
Date
2018-12
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
Adhesively joining technique becomes very important due to capability like joining dissimilar
material, lighter vehicle design, and composite material assembly than mechanical fastening.
During combining dissimilar or similar materials together there must be adequate understanding
of the behavior of multi-material adhesively bonded joints to ensure efficiency, safety and
reliability of such joints. This may include adhesive thickness, bond length, amount of load to be
applied, type material to be joined, type adhesive to be used and other factors used in analysis
parameters. Using Elastomeric adhesives such as polyurethanes Sikaflex 265 as adhesive and
steel, aluminum, glass and composite as adherend, analytical and numerical analysis has been
done on single lap joint for elastic limit. In analytical, derivation of analytical equation that
describe peel and shear stress profiles along adhesive length which is to be validated by
comparing to numerical analysis done by Finite Element commercial package ABAQUS for
metals. By varying the parameters used in stress equation derivation the effect they have on
strength of joint also shown on failure load determination for steel, glass and aluminum. For all
metals the analysis done is valid for elastic Range only. Effect of fiber orientation of glass fiber
reinforced polymer (GFRP) composite on the joint also analyzed. Selecting suitable failure
criteria then failure load for each combination of joint parameters are done.
Description
Keywords
Adhesive joint, single lap joint, GFRP, elastomeric adhesive, peel stress, shear stress, parametric study