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Rapid evaluation of fatigue limit on thermographic data analysis

Huang, Jia and Pastor, Marie-Laetitia and Garnier, Christian and Gong, Xiao-Jing Rapid evaluation of fatigue limit on thermographic data analysis. (2017) International Journal of Fatigue, 104. 293-301. ISSN 0142-1123

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Official URL: http://dx.doi.org/10.1016/j.ijfatigue.2017.07.029

Abstract

Based on infrared thermography, the graphic methods such as Luong’s method and Risitano’s method are proved to be rapid and efficient for fatigue limit determination comparing to conventional methods. However, the determination procedure involves visual inspection so contains man-made uncertainties, which restricts their usage. In the present paper, we propose three new treatment methods in terms of relation curve between experimental temperature response (or dissipated energy) and the applied stress amplitude so as to determine the fatigue limit with uniqueness. Those three methods were all evaluated by applying to the experimental data from literature and the error of results were discussed and analyzed. In addition, numerical experiments were carried out to investigate the influence of loading stepped length and random error on each new treatment method.

Item Type:Article
HAL Id:hal-01924946
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: Pascale Lalot
Deposited On:23 Oct 2018 14:58

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