Evaluation of the fatigue load, the rivet squeezing force, the velocity of rivet close up and the hole diameter before sizing (after drilling) effect on the fatigue life of specimens with sized and riveted hole was presented in this paper. The work contains two parts. Design of experiment and the results of the fatigue tests performed by the described experiment plan was presented in the first part. The statistical analyses and examples of using the mathematical model of the experimental unit were presented in the second part.
Evaluation of the fatigue load, the rivet squeezing force, the velocity of rivet close up and the hole diameter before sizing (after drilling) effect on the fatigue life of specimens with sized and riveted hole was presented in this paper. The work contains two parts. Design of experiment and the results of the fatigue tests performed by the described experiment plan was presented in the first part. The statistical analyses and examples of using the mathematical model of the experimental unit were presented in the second part.
This paper presents results of research on improvement of riveted joints fatigue life. That improvement was achieved using the rivet hole sizing process. The diagrams of sizing forces as the function of the hole sizing degree were analysed. Results of fatigue tests performed by the authors confirmed that the rivet hole sizing degree significantly influences fatigue life, and the improvement is proportional to the sizing degree.
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