6533b82bfe1ef96bd128d48c

RESEARCH PRODUCT

Estimation of the fatigue life of high strength steel under variable-amplitude tension with torsion: Use of the energy parameter in the critical plane

E. MachaFranck MorelTadeusz ŁAgodaAdam Niesłony

subject

AmplitudeMaterials scienceEnergy parameterbusiness.industryEnergy densityHigh strength steelTorsion (mechanics)Strain energy density functionStructural engineeringMechanicsFracture planebusinessElastic and plastic strain

description

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.

https://doi.org/10.1016/s1566-1369(03)80011-0