Damage evolution modeling of CFRP/Al single-lap screw type blind riveted joints during realistic installation process

Feng, Jiaming; Zhang, Jingdong; Jin, Wanjun; Liao, Ridong

doi:10.1016/j.compstruct.2024.118023

Composite Structures

2024

DOI: 10.1016/j.compstruct.2024.118023

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Damage evolution modeling of CFRP/Al single-lap screw type blind riveted joints during realistic installation process

Jiaming Feng,

Jingdong Zhang,

Wanjun Jin

et al.

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Cited by 3 publications

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Optimization of blind riveting process parameters of aluminum alloy based on finite element simulation

Wang,

Bao,

Gao

et al. 2024

Materials Today Communications

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Optimization of blind riveting process parameters of aluminum alloy based on finite element simulation

Wang,

Bao,

Gao

et al. 2024

Materials Today Communications

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Experimental and numerical investigation on the effect of process parameters on joint strength and failure behavior of self-piercing riveted steel/aluminium hybrid joints

Yu,

Wang,

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part L:

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To further improve the joint strength and identify the potential failure behavior of self-piercing riveted (SPR) steel/aluminium hybrid joints under shear and cross-tension loading conditions, a simplified 2D-to-3D simulation process chain is proposed. The finite element models (FEM) for the failure process of SPR joints are established in LS-DYNA and verified against experimental results. The effects of rivet strength, sheet material and thickness, and riveting direction on the joint strength and failure behavior of SPR joints are investigated. The results show that when the rivet strength is less than 1.3 GPa, increasing the rivet strength can improve the joint strength of AS joints under shear load and SA joints under cross-tension load. The joint strength of two types of SPR joints increases gradually and then decreases with an increase in thickness ratio Rt. When the steel/aluminium sheet thickness ratio Rsa exceeds 1.47, the aluminium-to-steel direction should be chosen. Increasing material strength can improve the joint strength of two types of SPR joints, while their sensitivities to the material strength vary under different loading conditions. The sheet material, sheet thickness, and riveting direction can change the failure behavior of the joints, while the rivet strength does not alter the failure behavior. This work contributes to understanding the mechanism of joint strength improvement and enhances riveting quality in industrial practice.

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Effect of Bushing Structure on Mechanical Properties and Failure Mechanism of CFRP Laminated Titanium Nail Riveting

Wang,

Zhu,

Wang

et al. 2024

Coatings

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In the aerospace field, the riveting process is one of the main methods for connecting the Carbon Fiber Reinforced Polymer/Plastic (CFRP). During the riveting process, components are prone to problems such as damage to CFRP hole walls and reduction in joint strength. To this end, this paper proposes two new bushing structures based on riveting. The riveting damage behavior and mechanical properties of composite materials under three riveting methods: non-bushing, non-boss bushing, and boss bushing were compared. Furthermore, the tensile and hysteretic mechanical properties of CFRP under different riveting structures were studied. The results show that the stress distribution around the hole is more uniform than that of the non-bushing riveting method, and the delamination damage at the hole wall is significantly reduced. In the tensile test, the maximum tensile loads of the non-boss bushing and the boss bushing increased by 2.49% and 5.03% compared to the non-boss bushing schemes. In addition, the tensile failure modes of the three schemes also showed different failure modes due to different riveting forms. The failure mode of the non-bushing riveting scheme is rivet shear failure, and the failure mode of the bushing riveting scheme is rivet pull-off failure. In the hysteretic test, the maximum tensile loads of the non-boss bushing and the boss bushing increased by 5.49% and 12.03% compared to the non-bushing scheme. The failure mode of the three schemes is rivet pull-off failure. The bushing structure not only enhances the connection strength, but also improves the damage to the CFRP hole wall. This study provides a new understanding of the design and optimization of CFRP riveted connection structures.

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Damage evolution modeling of CFRP/Al single-lap screw type blind riveted joints during realistic installation process

Cited by 3 publications

References 40 publications

Optimization of blind riveting process parameters of aluminum alloy based on finite element simulation

Optimization of blind riveting process parameters of aluminum alloy based on finite element simulation

Experimental and numerical investigation on the effect of process parameters on joint strength and failure behavior of self-piercing riveted steel/aluminium hybrid joints

Effect of Bushing Structure on Mechanical Properties and Failure Mechanism of CFRP Laminated Titanium Nail Riveting

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