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The effect of opposing notch geometry on the tensile strength of adhesively bonded single-lap joints

Salim Çam (Department of Mechanical Engineering, Erzincan University, Erzincan, Turkey)
Adnan Özel (Department of Mechanical Engineering, Erzincan University, Erzincan, Turkey)

Engineering Computations

ISSN: 0264-4401

Article publication date: 6 April 2020

Issue publication date: 31 August 2020

206

Abstract

Purpose

This study aims to investigate the effect of opposing notches formed on the adherends on the tensile strength of an adhesively bonded single-lap joint.

Design/methodology/approach

Different notch geometries were constructed on adherends and evaluated by using the Taguchi method to obtain optimum notch geometry. Then finite element analysis was conducted considering optimum notch geometries by using the cohesive zone model. Lastly, finite element analysis results were validated experimentally.

Findings

Experimental and numerical studies revealed that notches formed on adherends increased the tensile strength of the joint. The failure load of the Type-III joint, where the highest increase was observed, increased by 15 per cent. In addition, it was found that the notch shape, length, depth and distance to the overlap area had significant effects on the failure load of the joint.

Originality/value

This study shows that higher joint strengths can be accomplished by using the same joint configuration by notching adherends.

Keywords

Acknowledgements

This work was supported by the Research Fund of the Erzincan Binali Yıldırım University, Project Number: FEN-A-150615-0150.

Citation

Çam, S. and Özel, A. (2020), "The effect of opposing notch geometry on the tensile strength of adhesively bonded single-lap joints", Engineering Computations, Vol. 37 No. 8, pp. 2895-2911. https://doi.org/10.1108/EC-11-2019-0534

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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