Author(s):
Alpendre, João M. B. ; Rosado, Pedro M. S. ; Sampaio, Rui F. V. ; Pragana, João P. M. ; Bragança, Ivo ; Silva, Carlos M. A. ; Martins, Paulo A. F.
Date: 2025
Persistent ID: http://hdl.handle.net/10400.21/21971
Origin: Repositório Científico do Instituto Politécnico de Lisboa
Subject(s): Joining by forming; Double-flush riveting; Adhesive bonding; Hybrid lap joints; Finite element modelling; Experimentation; Joining by forming; Joining by forming; Double-flush riveting; Double-flush riveting; Adhesive bonding; Adhesive bonding; Hybrid lap joints; Hybrid lap joints; Finite element modelling; Finite element modelling; Experimentation; Experimentation
Description
This paper explores the potential to enhance the mechanical performance of joints created through a new joining-by-forming technique called hybrid double-flush riveting. To achieve this, adhesive bonding is used to form hybrid lap joints with superior mechanical properties. The study focuses on high-strength steel sheets and starts by identifying the appropriate surface conditions necessary for producing strong adhesive-bonded joints. A similar strategy is applied to construct double-flush riveted joints, focusing on the geometric variables involved in the process. Hybrid joints are then created by integrating adhesive bonding with double-flush riveting, with the second carried out before or after curing is completed. The experimental development is supported by finite element analysis conducted with an in-house computer program. The mechanical performance of the hybrid joints is compared to that of purely adhesive-bonded and conventionally double-flush riveted joints through shear and peel destructive testing. Results demonstrate that hybrid joints ultimately provide greater joint strength for both solicitations. This allows showcasing the hybridization of double-flush riveting with adhesive bonding as an effective solution for applications where joint strength and continuity are essential.
