Residual stress and fatigue behavior of riveted lap joints with various riveting sequences, rivet patterns, and pitches

Yu, Haidong; Zheng, Bin; Xu, Xun; Lai, Xinmin

doi:10.1177/0954405419834481

Cited by 24 publications

(13 citation statements)

References 31 publications

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“…According to the analysis of the above riveting process, the main contact pairs in the model are as follows: (1) the contact between the bottom surface of the riveting die and the side face of the rivet rod; (2) the contact between the cylindrical surface of the rivet and the wall of the sheet siding hole; (3) the contact between the cylindrical surface and the countersunk surface of the rivet; (4) the contact between the wall of the sheet hole and the countersunk hole; (5) the contact between the sheets and the strap plate; (6) the contact between the pier head surface and the sheet surface after the rivet is deformed; (7) the contact between the left and right sheet. The above contact pairs are all set to general contact in ABAQUS, and there is friction between the contact surfaces.…”

Section: Stress Distribution After Rivetingmentioning

confidence: 99%

Effect of the Position of the Boundary Rivets on the Quality of Riveted Single Strap Butt Joints

et al. 2021

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Riveting is widely used in aircraft manufacturing. The strap butt joint is often used in the aircraft’s main bearing area such as the aircraft docking area. The connection quality affects the reliability and safety of the aircraft directly. To study the effect of the rivet position on the connection quality of the strap butt joints, this paper analyzed the distribution of stress around the rivet hole at different positions by the finite element method, and then further analyzed the influence of the different rivet layouts on the connection quality of the strap butt joints by experiments. The static load tensile failure test of the joints was carried out, and the obtained tensile strength and failure mode of the strap butt joints showed that the main static tensile failure form of the single strap butt joint is that the whole rivets is sheared and the connecting sheets are separated. By changing the layout of different rivets, the connection strength can be maximized by reducing the outer row spacing (ORSD) of rivets. The results can be used for reference in the design of the riveting structure of aircraft panels.

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Section: Stress Distribution After Rivetingmentioning

confidence: 99%

Effect of the Position of the Boundary Rivets on the Quality of Riveted Single Strap Butt Joints

et al. 2021

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“…Fatigue cracking in riveted joints 83 : (a) Original ROI, (b) fasteners detected within the ROI and zones identified based on the fasteners via clustering, and (c) cracks that are otherwise missed during the direct application of the crack detection model are elucidated after applying the crack detection model independently on each of the identified zones.…”

Section: Task 2: Damage Detection In Multi-joint-bolted Regionsmentioning

confidence: 99%

Augmented reality for enhanced visual inspection through knowledge-based deep learning

Wang

Zargar

Fang

2020

Structural Health Monitoring

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A two-stage knowledge-based deep learning algorithm is presented for enabling automated damage detection in real-time using the augmented reality smart glasses. The first stage of the algorithm entails the identification of damage prone zones within the region of interest. This requires domain knowledge about the damage as well as the structure being inspected. In the second stage, automated damage detection is performed independently within each of the identified zones starting with the one that is the most damage prone. For real-time visual inspection enhancement using the augmented reality smart glasses, this two-stage approach not only ensures computational feasibility and efficiency but also significantly improves the probability of detection when dealing with structures with complex geometric features. A pilot study is conducted using hands-free Epson BT-300 smart glasses during which two distinct tasks are performed: First, using a single deep learning model deployed on the augmented reality smart glasses, automatic detection and classification of corrosion/fatigue, which is the most common cause of failure in high-strength materials, is performed. Then, in order to highlight the efficacy of the proposed two-stage approach, the more challenging task of defect detection in a multi-joint bolted region is addressed. The pilot study is conducted without any artificial control of external conditions like acquisition angles, lighting, and so on. While automating the visual inspection process is not a new concept for large-scale structures, in most cases, assessment of the collected data is performed offline. The algorithms/techniques used therein cannot be implemented directly on computationally limited devices such as the hands-free augmented reality glasses which could then be used by inspectors in the field for real-time assistance. The proposed approach serves to overcome this bottleneck.

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“…Researchers have devoted much attention to the prediction of fatigue life and the fatigue performance of riveted joints. Yu et al [ 14 ] developed a fatigue life prediction model for multi-rivet structures considering the residual stress and cyclic load. The prediction results were compared with the experimental data and showed a good performance.…”

Section: Introductionmentioning

confidence: 99%

Influence of Rivet Diameter and Pitch on the Fatigue Performance of Riveted Lap Joints Based on Stress Distribution Analysis

Liu

Zhao

et al. 2020

Materials

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Interference-fit riveting is one of the most widely used mechanical joining ways in aircraft assembly. The fatigue performance of riveted joints has a significant impact on the service life and reliability of aircraft. In this paper, the fatigue performance of the riveted lap joints with various rivet diameters and pitches are studied based on stress distribution analysis under tensile load. First, a theoretical model of the riveted lap joint under tensile load is developed by using the spring-mass model. The rivet-load stress, bypass stress, and interference stress around the riveted hole are analyzed. Then, the finite element (FE) model of riveted lap joints are established. The influence of rivet diameter and pitch on stress distribution around the riveted hole are discussed. Finally, the fatigue tests are conducted with riveted lap joint specimens to verify the theoretical model and FE results, and a good agreement is observed. Based on the simulation and experimental results, a good combination of structural parameters of the riveted lap joint is found which can optimize the stress distribution around the riveted hole and improve the fatigue life of the riveted lap joint.

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Residual stress and fatigue behavior of riveted lap joints with various riveting sequences, rivet patterns, and pitches

Cited by 24 publications

References 31 publications

Effect of the Position of the Boundary Rivets on the Quality of Riveted Single Strap Butt Joints

Effect of the Position of the Boundary Rivets on the Quality of Riveted Single Strap Butt Joints

Augmented reality for enhanced visual inspection through knowledge-based deep learning

Influence of Rivet Diameter and Pitch on the Fatigue Performance of Riveted Lap Joints Based on Stress Distribution Analysis

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