Mean Stress Value in Spectral Method for the Determination of Fatigue Life

• Autorzy: Niesłony A. , Böhm M.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a proposal of account of mean stress value in the process of the determination of the fatigue life, using the spectral method. The existing approaches have been described and some chosen stress models used to take into account the influence of the mean value in the process of the determination of fatigue life have been introduced. Those models, referring to their linear character, have been used to determine the power spectral density function (PSD) of the transformed stress taking into account the mean value. The method introduced by the authors allows a wide usage of many formulas used to predict the fatigue life by means of the spectral method.

Słowa kluczowe

EN

mean stress; fatigue life; spectral method

PL

naprężenia średnie; trwałość zmęczeniowa; metoda spektralna

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2012
• Tom: Vol. 6, no. 2
• Strony: 71--74
• Opis fizyczny: Bibliogr. 13 poz., Rys.

Twórcy

autor

Niesłony A.

autor

Böhm M.

• * Faculty of Mechanical Engineering, Department of Mechanics and Machine Design, Opole University of Technology, ul. Mikołajczyka 5, 45-271 Opole, Poland,

Bibliografia

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• 3. Böhm M. (2010), Influence of static stresses on fatigue life of cast iron under variable-amplitude loading (in Polish), MSc Thesis, Opole, 65.
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• 7. Łagoda T., Macha E., Pawliczek R. (1998), Influence of the expected random stress history on fatigue life of 10HNAP steel under uniaxial tension (in Polish), PMR, Warszawa, Z. 11/1998, 121-138.
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• 9. Niesłony A. (2003), Generalization of the spectral method of fatigue life determination to the extend of multiaxial loads (in Polish), PhD Thesis, Opole, 109
• 10. Niesłony A. (2008), Determination of fatigue damage layers by means of the spectral method (in Polish), Publishing hause of Opole University of Technology, Opole.
• 11. Niesłony A. (2010), Comparison of some selected multiaxial fatigue failure criteria dedicated for spectral method, Journal of Theoretical and Applied Mechanics, Warsaw, Nr 48, 233-254.
• 12. Niesłony A., Macha E. (2007), Spectral method in multiaxial random fatigue, Springer-Verlag, Berlin Heidelberg.
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