Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive Joints

This paper deals with the stress and failure characteristics of V-shaped epoxy adhesive joints. The effect of scarf angles upon failure morphology was investigated by tensile tests and monitoring using high speed cameras. V-shaped specimens were fabricated with three bond thicknesses, t (i.e. 0.2mm,...

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Main Authors: Mohd Afendi, Nur Athirah, M.S. Abdul Majid, R. Daud, Tokuo Teramoto
Format: Article
Language:English
Published: Universiti Malaysia Pahang Publishing 2014-06-01
Series:Journal of Mechanical Engineering and Sciences
Subjects:
Online Access:https://journal.ump.edu.my/jmes/article/view/8393
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author Mohd Afendi
Nur Athirah
M.S. Abdul Majid
R. Daud
Tokuo Teramoto
author_facet Mohd Afendi
Nur Athirah
M.S. Abdul Majid
R. Daud
Tokuo Teramoto
author_sort Mohd Afendi
collection DOAJ
description This paper deals with the stress and failure characteristics of V-shaped epoxy adhesive joints. The effect of scarf angles upon failure morphology was investigated by tensile tests and monitoring using high speed cameras. V-shaped specimens were fabricated with three bond thicknesses, t (i.e. 0.2mm, 0.6mm, and 1.0mm) and various scarf angles (i.e. θ = 30˚, 45˚, 60˚, 75˚, and 90˚). From failure surface observation, failure morphology can be divided into five types, consisting of interface failure and/or cohesive failure. Shear stress plays a major role in failure morphology where higher shear stress favors interface failure in the specimens tested. A simple failure criterion is also proposed based on the results obtained. It is found that the proposed criterion can approximately predict the failure stress of V-shaped epoxy adhesive joint specimens. For stress analysis, V-shaped epoxy adhesive joints having bond thicknesses t = 1.0mm, and with various scarf angles (i.e. θ = 30˚, 45˚, 60˚, 75˚, and 90˚), were modelled. Stress singularity observed in simulation plays a major role in failure morphology where higher singularity favors cohesive failure in the specimens tested in experiment.
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spelling doaj.art-d26a8390b66e43e28691717b03b007282023-09-03T11:18:43ZengUniversiti Malaysia Pahang PublishingJournal of Mechanical Engineering and Sciences2289-46592231-83802014-06-016 92993910.15282/jmes.6.2014.19.0089Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive JointsMohd Afendi0Nur Athirah1M.S. Abdul Majid2R. Daud3Tokuo Teramoto4School of Mechatronic Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, MalaysiaSchool of Mechatronic Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, MalaysiaSchool of Mechatronic Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, MalaysiaSchool of Mechatronic Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, MalaysiaGraduate School of Systems and Information Engineering, University of Tsukuba, 305-0821, Tsukuba, JapanThis paper deals with the stress and failure characteristics of V-shaped epoxy adhesive joints. The effect of scarf angles upon failure morphology was investigated by tensile tests and monitoring using high speed cameras. V-shaped specimens were fabricated with three bond thicknesses, t (i.e. 0.2mm, 0.6mm, and 1.0mm) and various scarf angles (i.e. θ = 30˚, 45˚, 60˚, 75˚, and 90˚). From failure surface observation, failure morphology can be divided into five types, consisting of interface failure and/or cohesive failure. Shear stress plays a major role in failure morphology where higher shear stress favors interface failure in the specimens tested. A simple failure criterion is also proposed based on the results obtained. It is found that the proposed criterion can approximately predict the failure stress of V-shaped epoxy adhesive joint specimens. For stress analysis, V-shaped epoxy adhesive joints having bond thicknesses t = 1.0mm, and with various scarf angles (i.e. θ = 30˚, 45˚, 60˚, 75˚, and 90˚), were modelled. Stress singularity observed in simulation plays a major role in failure morphology where higher singularity favors cohesive failure in the specimens tested in experiment.https://journal.ump.edu.my/jmes/article/view/8393v-shapedadhesive jointbond thicknessscarf anglefailure criterionfinite element
spellingShingle Mohd Afendi
Nur Athirah
M.S. Abdul Majid
R. Daud
Tokuo Teramoto
Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive Joints
Journal of Mechanical Engineering and Sciences
v-shaped
adhesive joint
bond thickness
scarf angle
failure criterion
finite element
title Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive Joints
title_full Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive Joints
title_fullStr Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive Joints
title_full_unstemmed Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive Joints
title_short Experimental and Numerical Investigation of V-Shaped Epoxy Adhesive Joints
title_sort experimental and numerical investigation of v shaped epoxy adhesive joints
topic v-shaped
adhesive joint
bond thickness
scarf angle
failure criterion
finite element
url https://journal.ump.edu.my/jmes/article/view/8393
work_keys_str_mv AT mohdafendi experimentalandnumericalinvestigationofvshapedepoxyadhesivejoints
AT nurathirah experimentalandnumericalinvestigationofvshapedepoxyadhesivejoints
AT msabdulmajid experimentalandnumericalinvestigationofvshapedepoxyadhesivejoints
AT rdaud experimentalandnumericalinvestigationofvshapedepoxyadhesivejoints
AT tokuoteramoto experimentalandnumericalinvestigationofvshapedepoxyadhesivejoints