Fatigue criterion based on the huber-von mises-hencky criterion for non-proportional loadings

• Autorzy: Skibicki D.
• Języki publikacji: EN

Abstrakty

EN

In the present paper to determine the calculated fatigue limit, under non-proportional loads, there has been proposed a modification of the Huber-von Mises-Hencky criterion. To do so the Novoshilov interpretation of that criterion was applied. As an ‘effective amplitude’, there was assumed the maximum value of shear stress in the nonproportional load cycle. There was also proposed the weight function showing preference of the directions of easy slip in network A2. Verification calculations were performed for literature data. The data included experimental fatigue limits reported under biaxial loads, sinusoidally variable from phase shift. The present results were compared with the Huber-von Mises-Hencky criterion. The analysis allowed for determining that the solutions proposed demonstrate greater accuracy, especially under loadings of a high degree of load non-proportionality.

Słowa kluczowe

EN

multiaxial fatigue; fatigue criteria; integral approach

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2010
• Tom: Vol. 5, no 3
• Strony: 177--186
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Skibicki D.

• University of Technology and Life Sciences Faculty of Mechanical Engineering ul. S. Kaliskiego 7, 85-791 Bydgoszcz, Poland tel.: [phone],

Bibliografia

• [1] Liu, J., Weakest link Theory and Multiaxial Criteria, Proceedings of 5th International Conference on Biaxial/Multiaxial Fatigue and Fracture 1, pp. 45-62, 1997.
• [2] Zenner, H., Simbürger, A., Liu, J., On the fatigue limit of ductile metals under complex multiaxial loading, International Journal of Fatigue 22, pp. 137-145, 2000.
• [3] Papadopoulos, I., V., A high-cycle fatigue criterion applied in biaxial and triaxial out-of phase stress conditions, Fatigue Fract Engng Mater Struct, pp. 18–79, 1995.
• [4] Papadopoulos, I., V., Critical plane approaches in high-cycle fatigue: on the definition of the amplitude and mean value of the shear stress acting on the critical plane, Fatigue Fract Engng Mater Struct 21, pp. 269–285, 1998.
• [5] Nisihara, T., Kawamoto, M., The strength of metals under combined bending and twisting with phase difference, Memoirs, College of Engineering, Kyoto Imperial University, pp. 85-112, 1945.