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Article

Evaluation of Fatigue Characteristics of Aluminum Alloys and Mechanical Components Using Extreme Value Statistics and C-Specimens

School of Mechanical Engineering, College of Engineering, Korea University, Seoul 02841, Korea
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Academic Editor: Francesco Iacoviello
Metals 2021, 11(12), 1915; https://doi.org/10.3390/met11121915
Received: 22 October 2021 / Revised: 21 November 2021 / Accepted: 23 November 2021 / Published: 27 November 2021
In this study, the fatigue characteristics of aluminum alloys and mechanical components were investigated. To evaluate the effect of forging, fatigue specimens with the same chemical compositions were prepared from billets and forged mechanical components. To evaluate the cleanliness of the aluminum alloys, the cross-sectional area of specimens was observed, and the maximum inclusion sizes were obtained using extreme value statistics. Rotary bending fatigue tests were performed, and the fracture surfaces of the specimens were analyzed. The results show that the forging process not only elevated the fatigue strength but also reduced the scatter of the fatigue life of aluminum alloys. The fatigue characteristics of C-specimens were obtained to develop finite-element method (FEM) models. With the intrinsic fatigue properties and strain–life approach, the FEM analysis results agreed well with the test results. View Full-Text
Keywords: wrought aluminum; forging; fatigue; extreme value statistics; finite-element method analysis wrought aluminum; forging; fatigue; extreme value statistics; finite-element method analysis
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MDPI and ACS Style

Lee, J.; Park, S.-Y.; Choi, B.-H. Evaluation of Fatigue Characteristics of Aluminum Alloys and Mechanical Components Using Extreme Value Statistics and C-Specimens. Metals 2021, 11, 1915. https://doi.org/10.3390/met11121915

AMA Style

Lee J, Park S-Y, Choi B-H. Evaluation of Fatigue Characteristics of Aluminum Alloys and Mechanical Components Using Extreme Value Statistics and C-Specimens. Metals. 2021; 11(12):1915. https://doi.org/10.3390/met11121915

Chicago/Turabian Style

Lee, Jungsub, Sang-Youn Park, and Byoung-Ho Choi. 2021. "Evaluation of Fatigue Characteristics of Aluminum Alloys and Mechanical Components Using Extreme Value Statistics and C-Specimens" Metals 11, no. 12: 1915. https://doi.org/10.3390/met11121915

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