Research on the Mechanical Properties of Single-Lap Rivet-Bonded Hybrid Joint Considering the Rivet Forming Process

Background This paper investigates the mechanical properties and failure behaviours of rivet-bonded hybrid joints composed of aluminium adherends and steel rivets under quasi-static tensile loading. Objective The damage law of hybrid joints is studied to provide a reference for the design and manufa...

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Bibliographic Details
Published in:Experimental mechanics 2024-10, Vol.64 (8), p.1215-1227
Main Authors: Han, X., Ren, L. Z., Xu, X., Ying, L., Wu, C. W., Hou, W. B.
Format: Article
Language:English
Subjects:
Adhesive joints
Adhesives
Aluminum
Axial stress
Biomedical Engineering and Bioengineering
Bonded joints
Characterization and Evaluation of Materials
Control
Damage
Dynamical Systems
Engineering
Failure
Finite element method
Lasers
Mathematical models
Mechanical properties
Optical Devices
Optics
Peak load
Photonics
Research Paper
Riveted joints
Riveting
Rivets
Solid Mechanics
Tensile tests
Vibration
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Summary:Background This paper investigates the mechanical properties and failure behaviours of rivet-bonded hybrid joints composed of aluminium adherends and steel rivets under quasi-static tensile loading. Objective The damage law of hybrid joints is studied to provide a reference for the design and manufacture of hybrid joints. Methods Tensile tests were conducted on aluminium and steel specimens at various triaxial stress levels. The corresponding finite element model (FEM) was developed to verify the Johnson–Cook damage parameters of the studied metals. The hybrid joint considering the rivet forming process was constructed through FE modelling using the Johnson–Cook failure criterion and Cohesive Zone Model (CZM), which was then validated with the experimental results. Results Experimental results of the hybrid joint showed that a typical two-stage failure: 1) the adhesive layer bears the majority of the load during the initial loading stage, and 2) the adhesive layer completely fails after reaching the peak load and the rivet solely bears the load subsequently. Conclusions The riveting process did not cause damage to the adhesive layer, which ensured the reliability of the manufacturing techniques of the hybrid joint. And the yielding of rivets may buffer the immediate failure of hybrid joints.
ISSN:0014-4851
1741-2765
DOI:10.1007/s11340-024-01093-7