Fatigue "safe-life" criterion for metal elements under multiaxial static and dynamic random loads

• Autorzy: Kolenda J.
• Języki publikacji: EN

Abstrakty

EN

Random stress with Cartesian components of known statistical moments of their mean values and power spectral densities of stochastic stress processes is considered. To accoŹunt for the mean stress effect the generalised Soderberg criterion for ductile materials is employed. An equivalent stress with periodic (in the mean-square sense) components is defined by means of the equivalence conditions based on the average strain distortion energy. Also, is formulated the fatigue "safe-life" design criterion which covers the condiŹtions of both static strength and fatigue safety and includes yield strengths and fatigue limits which : have simple physical interpretation, can be determined by uniaxial tests, are directly related to the applied loads, and can reflect material anisotropy.

Słowa kluczowe

EN

design criteria; multiaxial loading; random stress; mean stress effect

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2004
• Tom: nr 3
• Strony: 21--24
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Kolenda J.

• Faculty of Ocean Engineering and Ship Technology Gdańsk University of Technology, Narutowicza 11/12, 80-952 Gdańsk, POLAND

Bibliografia

• 1. Kolenda J.: Fatigue „safe-life " criterion for metal elements under multiaxial constant and periodic loads. Polish Maritime Research, Vol. 11, No 2, June 2004
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