An Energy Based Multiaxial Fatigue Criterion
The aim of this investigation was to develop a method of prediction of the multiaxial fatigue life. A form of the cyclic strain energy density is proposed as a damage parameter for multiaxial fatigue failure. The strain energy density includes both elastic and plastic strain energy densities, and it can be used to describe both the low- and high-cycle fatigue. The criterion proposed has an invariant property and is hydrostatic pressure sensitive. Predictions of the proposed criterion are compared with the experimental results of biaxial fatigue tests for the A-516 Gr. 70 carbon low - alloy steel. The comparison has shown good agreement.
E. KREMPL, The influence of state of stress on low-cycle fatigue of structural materials, ASTM STP 549, 1974.
M. W. BROWN, K. J. MILLER, Two decades of progress in the assessment of multiaxial low-cycle fatigue life, American Society for Testing and Materials, 482-499, 1982.
F. ELLYIN, A criterion for fatigue under multiaxial states of stress, Mechanics Research Communications, 1, 4, 219-224, 1974.
Y. S. GARUD, A new approach to the evaluation of fatigue under multiaxial loading, Methods of Predicting Material Life in Fatigue, ASME, 247-258, 1979.
G. R. HALFORD, The energy required for fatigue, J. Materials, ASTM, 1, 1, 3-18, 1966.
D. LEFEBVRE, F. ELLYIN, Cyclic response and inelastic strain energy in low-cycle fatigue, Int. J. Fatigue, 6, 1, 9-15, January 1984.
D. J. WHITE, B. CROSS LAND, J. L. M. MORRISON, Effect of hydrostatic pressure on the direct-stress fatigue strength of an alloy steel, J. Mech. Engng. Sci., 1, 29-49, 1959.
J. L. M. MORRISON, B. CROSSLAND, J. S. PARRY, The strength of thick cylinders subjected to repeated international pressure, J. Engng. Industry, 143-153, 1960.
K. GOŁOŚ, Cumulative damage fatigue in St 5 medium carbon steel, Proc. 1st Conf. on Mechanics. Praha, 4/III, 111-114, 1987.
K. GOŁOŚ, Energetistic formulation of fatigue strength criterion, Arch. Budowy Maszyn, 35, 1/2, 1988.
D. LEFEBVRE, C. CHEBL, E. KHAZZARI, Multiaxial high-strain fatigue of A-516 grade 70 steel, Proc. 2 Conf. on Fatigue and Fatigue Threshold, Birmingham 1984.
Copyright © 2014 by Institute of Fundamental Technological Research
Polish Academy of Sciences, Warsaw, Poland