The University of Southampton
University of Southampton Institutional Repository

On axisymmetric adhesive joints with graded interface stiffness

On axisymmetric adhesive joints with graded interface stiffness
On axisymmetric adhesive joints with graded interface stiffness
An improved analytical model is presented for the stress analysis of interface stiffness graded axisymmetric adhesive joints. The governing integro-differential equation of the problem is obtained through a variational method which minimizes the complementary energy of the bonded assembly. The joint is composed of similar or dissimilar polar anisotropic and/or isotropic adherends and a functionally modulus graded bondline (FMGB) adhesive. The elastic modulus of the adhesive is functionally graded along the bondlength by assuming smooth modulus profiles which reflect the behavior of practically producible graded bondline. Influence of non-zero radial stresses in the bonded system on shear and normal stresses is evaluated. The stress distribution predicted by this refined model is compared with that of mono-modulus bondline (MMB) model for the same axial tensile load in order to estimate reduction in shear and normal stress peaks in the bondline and the adherends. A systematic parametric study indicates that an optimum joint strength can be achieved by employing a stiffness graded bondline with an appropriate combination of geometrical and material properties of the adherends. This model can also be applied to examine the effects of loss of interface stiffness due to an existing defect and/or damage in the bondline
adhesive joint, graded interface, stress analysis, material tailoring
0143-7496
57-72
Kumar, S.
5cb24a9c-a32b-4afc-8048-6d7517d1a7a0
Scanlan, J.P.
7ad738f2-d732-423f-a322-31fa4695529d
Kumar, S.
5cb24a9c-a32b-4afc-8048-6d7517d1a7a0
Scanlan, J.P.
7ad738f2-d732-423f-a322-31fa4695529d

Kumar, S. and Scanlan, J.P. (2013) On axisymmetric adhesive joints with graded interface stiffness. International Journal of Adhesion and Adhesives, 41, 57-72. (doi:10.1016/j.ijadhadh.2012.09.001).

Record type: Article

Abstract

An improved analytical model is presented for the stress analysis of interface stiffness graded axisymmetric adhesive joints. The governing integro-differential equation of the problem is obtained through a variational method which minimizes the complementary energy of the bonded assembly. The joint is composed of similar or dissimilar polar anisotropic and/or isotropic adherends and a functionally modulus graded bondline (FMGB) adhesive. The elastic modulus of the adhesive is functionally graded along the bondlength by assuming smooth modulus profiles which reflect the behavior of practically producible graded bondline. Influence of non-zero radial stresses in the bonded system on shear and normal stresses is evaluated. The stress distribution predicted by this refined model is compared with that of mono-modulus bondline (MMB) model for the same axial tensile load in order to estimate reduction in shear and normal stress peaks in the bondline and the adherends. A systematic parametric study indicates that an optimum joint strength can be achieved by employing a stiffness graded bondline with an appropriate combination of geometrical and material properties of the adherends. This model can also be applied to examine the effects of loss of interface stiffness due to an existing defect and/or damage in the bondline

Text
Kumar paper published.pdf - Version of Record
Restricted to Repository staff only
Request a copy

More information

e-pub ahead of print date: 5 October 2012
Published date: March 2013
Keywords: adhesive joint, graded interface, stress analysis, material tailoring
Organisations: Computational Engineering & Design Group

Identifiers

Local EPrints ID: 204035
URI: http://eprints.soton.ac.uk/id/eprint/204035
ISSN: 0143-7496
PURE UUID: 181be353-8378-472c-8856-b929263a9f0a

Catalogue record

Date deposited: 23 Nov 2011 11:41
Last modified: 14 Mar 2024 04:29

Export record

Altmetrics

Contributors

Author: S. Kumar
Author: J.P. Scanlan

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×