Analysis of selected mathematical models of high-cycle S-N characteristics

• Autorzy: Strzelecki P. , Sempruch J. , Tomaszewski T.
• Języki publikacji: EN

Abstrakty

EN

The paper presents two approaches of determining S-N fatigue characteristics. The first is a commonly used and well-documented approach based on the least squares method and staircase method for limited fatigue life and fatigue limit, accordingly. The other approach employs the maximum likelihood method. The analysis of the parameters obtained through both approaches exhibited minor differences. The analysis was performed for four steel construction materials, i.e. C45+C, 45, SUS630 and AISI 1045. It should be noted that the quantity of samples required in the second approach is significantly smaller than with the first approach, which translates into lower duration and costs of tests.

Słowa kluczowe

EN

high-cycle fatigue; S-N curve; fatigue tests; number of specimen; steel strength

• Wydawca: Wydawnictwo Uniwersytetu Warmińsko-Mazurskiego w Olsztynie
• Czasopismo: Technical Sciences / University of Warmia and Mazury in Olsztyn
• Rocznik: 2017
• Tom: nr 20(3)
• Strony: 227--240
• Opis fizyczny: Bibliogr. 31 poz. rys., tab., wykr.

Twórcy

autor

Strzelecki P.

• Zakład Metod Komputerowych, Instytut Mechaniki i Konstrukcji Maszyn, Wydział Inżynierii Mechanicznej, Uniwersytet Technologiczno-Przyrodniczy w Bydgoszczy, al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz

autor

Sempruch J.

• Computer Methods Department, Institute of Mechanics and Machine Design, University of Science and Technology in Bydgoszcz

autor

Tomaszewski T.

• Computer Methods Department, Institute of Mechanics and Machine Design, University of Science and Technology in Bydgoszcz

Bibliografia

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Uwagi

Opracowanie w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).