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Open AccessArticle

The Influence of Single Lap Geometry in Adhesive and Hybrid Joints on Their Load Carrying Capacity

Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 38, 20-618 Lublin, Poland
Author to whom correspondence should be addressed.
Materials 2019, 12(12), 1884;
Received: 30 April 2019 / Revised: 8 June 2019 / Accepted: 9 June 2019 / Published: 12 June 2019
(This article belongs to the Special Issue Behavior of Metallic and Composite Structures)
The manufacturing technology for adhesive joints is not yet fully optimized, as proved by a large number of papers that have been published in recent years. Future studies on innovative techniques for fabricating adhesive joints should investigate the influence of parameters such as: (1) The shape of adhesive protrusion, (2) lap dimensions, and (3) cohesive layer reduction in the most efforted regions of the joint. With the application of additional mechanical connectors (e.g., rivets, screws, and welds) in adhesive joints, new hybrid connections can be fabricated. The number of publications in this new field is still relatively small. To fill the gap, this paper presents the results of a numerical analysis of different single lap geometries in (1) pure adhesive and (2) hybrid joints. A total of 13 different models with the same surface area of the adhesive layer were considered. In the case of hybrid joints, the adhesive surface before the application of mechanical connectors was assumed to be the same in every tested case. The numerical analysis of pure adhesive and hybrid joints revealed that the differences in strength led to a 30% decrease in the load capacity of these joints. Therefore, when designing pure adhesive and hybrid joints, special attention should be paid to the shape of the lap between the joined elements. View Full-Text
Keywords: adhesive joints; hybrid joints; cohesive layer; FEM adhesive joints; hybrid joints; cohesive layer; FEM
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Golewski, P.; Sadowski, T. The Influence of Single Lap Geometry in Adhesive and Hybrid Joints on Their Load Carrying Capacity. Materials 2019, 12, 1884.

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