Journal of Theoretical
and Applied Mechanics

50, 4, pp. 1073-1086, Warsaw 2012

Integral fatigue criteria evaluation for life estimation under uniaxial combined proportional and non-proportional loadings

Dariusz Skibicki, Łukasz Pejkowski
The paper presents a review and verification of integral fatigue criteria. The review signals the key assumptions and criteria structure elements. The verification has been developed drawing on the experimental data reported in literature containing fatigue life for uniaxial, combined proportional and non-proportional loads. The verification involves a comparison of computational fatigue life with the experimental one. To determine the quality of the results generated, statistical parameters were used. As a result of the analysis the best and the worst criteria were pointed to.
Keywords: multiaxial fatigue; fatigue life; fatigue criteria; integral approach