Double lap adhesive joint with reduced stress concentration:effect of slot

Hou, Xiaonan and Yousefi Kanani, Armin and Ye, Jianqiao (2018) Double lap adhesive joint with reduced stress concentration:effect of slot. Composite Structures, 202. pp. 635-642. ISSN 0263-8223

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Stress distributions at interfaces of adhesive lap joints have been widely studied to optimize overall structural strength. However, these studies focussed mainly on the mechanics of adhesive layers. In this paper, a novel concept for a double lap adhesive joint is proposed by introducing a slot in its inner adherend. Numerical simulations employing a finite-element method are used to validate the proposed concept. The results show that the introduction of the slots can smooth the stress distributions along the edges of the interfaces between adhesive and adherend and reduce stress concentration near the cut-off ends of the joint. The results also show that the height of the slots has significant effects on alternating the interfacial stresses. Thus, the proposed concept provides a promising way to optimize double lap adhesive joints for enhanced strength with reduced weight.

Item Type:
Journal Article
Journal or Publication Title:
Composite Structures
Additional Information:
This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 202, 2018 DOI: 10.1016/j.compstruct.2018.03.026
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Deposited On:
28 Mar 2018 10:42
Last Modified:
20 Sep 2023 01:09