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Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends

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Bibliographic Details
Main Authors: Mohd Afendi, Teramoto, Tokuo, Hairul, Bakri
Other Authors: s0830194@u.tsukuba.ac.jp
Format: Article
Language:English
Published: Elsevier Ltd 2011
Subjects:
Bond thickness
Scarf angle
Dissimilar adherends
Interface mechanics
FEM
Singularity
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13155
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spelling my.unimap-131552011-07-14T03:13:38Z Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends Mohd Afendi Teramoto, Tokuo Hairul, Bakri s0830194@u.tsukuba.ac.jp Bond thickness Scarf angle Dissimilar adherends Interface mechanics FEM Singularity Link to publisher's homepage at www.elsevier.com/ In this study, strength of epoxy adhesively bonded scarf joints of dissimilar adherends, namely SUS304 stainless steel and YH75 aluminum alloy is examined on several scarf angles and various bond thicknesses under uniaxial tensile loading. Scarf angle, θ=45°, 60° and 75° are employed. The bond thickness, t between the dissimilar adherends is controlled to be ranged between 0.1 and 1.2 mm. Finite element (FE) analysis is also executed to investigate the stress distributions in the adhesive layer of scarf joints by ANSYS 11 code. As a result, the apparent Young's modulus of adhesive layer in scarf joints is found to be 1.5-5 times higher than those of bulk epoxy adhesive, which has been obtained from tensile tests. For scarf joint strength prediction, the existing failure criteria (i.e. maximum principal stress and Mises equivalent stress) cannot satisfactorily estimate the present experimental results. Though the measured stress multiaxiality of scarf joints proportionally increases as the scarf angle increases, the experimental results do not agree with the theoretical values. From analytical solutions, stress singularity exists most pronouncedly at the steel/adhesive interface corner of joint having 45-75° scarf angle. The failure surface observations confirm that the failure has always initiated at this apex. This is also in agreement with stress-y distribution obtained within FE analysis. Finally, the strength of scarf joints bonded with brittle adhesive can be best predicted by interface corner toughness, Hc parameter. 2011-07-14T03:13:38Z 2011-07-14T03:13:38Z 2011-09 Article International Journal of Adhesion and Adhesives, vol. 31(6), 2011, pages 402-411 0143-7496 http://www.sciencedirect.com/science/journal/01437496 http://hdl.handle.net/123456789/13155 en Elsevier Ltd
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Bond thickness
Scarf angle
Dissimilar adherends
Interface mechanics
FEM
Singularity
spellingShingle Bond thickness
Scarf angle
Dissimilar adherends
Interface mechanics
FEM
Singularity
Mohd Afendi
Teramoto, Tokuo
Hairul, Bakri
Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends
description Link to publisher's homepage at www.elsevier.com/
author2 s0830194@u.tsukuba.ac.jp
author_facet s0830194@u.tsukuba.ac.jp
Mohd Afendi
Teramoto, Tokuo
Hairul, Bakri
format Article
author Mohd Afendi
Teramoto, Tokuo
Hairul, Bakri
author_sort Mohd Afendi
title Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends
title_short Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends
title_full Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends
title_fullStr Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends
title_full_unstemmed Strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends
title_sort strength prediction of epoxy adhesively bonded scarf joints of dissimilar adherends
publisher Elsevier Ltd
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13155
_version_ 1643790303348391936
score 13.214268

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