Effect of precipitaton hardening on rotary bending fatigue strength of circumferential V-notched specimens: Kobayashi, M., Nagasaka, A., Kashihara, M., Endo, R. and Futamura, A. J. Soc. Mater. Sci., Jpn. July 1989 38, (430), 789–795 (in Japanese)

Abstract

The paper concerns application of the energy parameter, being a sum of the elastic and plastic strain energy density in the critical plane, for describing experimental data obtained in fatigue tests of 35NCD16 steel, subjected to constant amplitude tension-compression, torsion and variable amplitude tension-compression, torsion and combined proportional tension with torsion. It has been shown that the normal strain energy density in the critical plane is a suitable parameter for correlation of fatigue lives of 35NCD16 steel under considered kinds of loading. The critical plane is the plane where the normal strain energy density reaches its maximum value.