Engineering Transactions, 41, 1, pp. 21-30, 1993

Fatigue Reliability in Uniaxial State of Stress Produced by Synchronous Loads

J. Kolenda
Gdańsk University of Technology, Gdańsk

The paper deals with the stress-based fatigue analysis of structural members subjected to synchronous and in-phase loads. The uniaxial state of stress produced by combined bending and tension-compression is considered. Attention is focused on the failure subregion for high cycle fatigue where the linear logarithmic models for fatigue behaviour are applicable. The relationships for calculation of fatigue reliability and number of cycles to failure are proposed. For the assessment of the probability of fatigue failure under the stress with normally distributed amplitudes of its components, the reliability index is determined.

Full Text: PDF
Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).


P. THOFT-CHRISTENSEN, M.J. BAKER, Structural reliability theory and its applications, Springer-Verlag, Berlin-Heidelberg-New York 1982.

S. KOCAŃDA, J. SZALA, Foundations of fatigue analysis [in Polish], PWN, Warszawa, 1985.

C.J. TURKSTRA, H.O. MADSEN, Load combinations in codified structural design, J. Struct. Div., ASCE, 106, No. St. 12, 1980.

J. FERRY BORGES, M. CASTANHETA, Structural safety, Laboratorio Nacional de Engenharia Civil, Lisbon 1972.

E. MACHA, Generalisation of cyclic fatigue criteria in case of multiaxial deformation under random loading [in Polish], WSI Opole, Studia i Monografie, 2, 1988.

D.L. MCDIARMID, A general criterion for high cycle multiaxial fatigue failure, Fatigue Fract. Engng. Mater. Struct., 14, 4, 429-453, 1991.

J. KOLENDA, Fatigue life at simultaneous bending, tension and compression, Marine Technology Transactions, 2, 79-85, 1991.

J. KOLENDA, Safety factors and probability of fatigue failure at simultaneous bending, tension and compression, Marine Technology Transactions, 1, 65-79, 1989.

P.H. HSU, Y.S. WU [Eds], Proc. of the 11th Int. Ship and Offshore Structures Congress, Vol. I, Elsevier, London and New York 1991.