The behaviour of single lap joints under bending loading

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Karachalios, EF (Author) Other; Adams, RD (Author) Other; Lucas F M da Silva (Author) FEUP

Journal

Title: Journal of Adhesion Science and Technology

Vol. 27

Pages: 1811-1827

ISSN: 0169-4243

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 15 Citations

Scopus - 29 Citations

Scientific classification

FOS: Engineering and technology > Chemical engineering

Other information

Authenticus ID: P-006-904

DOI: 10.1080/01694243.2012.761926

Abstract (EN): Four-point bend tests were performed on single lap joints with hard steel adherends and a structural epoxy adhesive. The effect of the overlap, the adherend thickness and the adhesive thickness was studied. It was found that the length of the overlap has no significant effect on the strength of the joints. This is because the load transfer is occurring in a very localised area around the edges of the overlap, being the failure governed by peel mechanisms. The thickness of the adherends strongly affects the strength of the joints. The thicker the adherend, the stronger is the joint. The experimental results are compared with a finite element model and reinforce the fact that the failure takes place due to local strains at the ends of the overlap in tension. An analytical model is also given to predict in a simple but effective way the joint strength and its dependence on the adherend thickness.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17