RT Journal Article
T1 Calculations of biaxial fatigue limits with models using the experimental crack direction
A1 Chaves, V.
A1 Balbín Molina, José Antonio
A1 Navarro, A.
A1 Susmel, L.
A1 Taylor, D.
AB Several models from the literature were used to predict the fatigue limit in notched components subjected tobiaxial cyclic loading. The predictions of these models are based on the elastic stresses along a line which isconsidered to be representative of the crack direction in its initial part. The line used in the models changesconsiderably. For one of the studied models, the line direction corresponds to Mode I, while for another it isMode II, and for the other two models considered the direction is between Mode I and Mode II. However, quitenaturally, the experimental crack direction is unique. In recent years, a study of experimental fatigue limits andcrack directions in its initial part for three materials was carried out in hollow cylindrical specimens with acircular hole subjected to cyclic axial, torsional and in-phase biaxial loading. The directions of the cracks thatwere measured experimentally are on average similar for the three materials and close to Mode I. The analysedmodels give, in general, good predictions of the experimental fatigue limits, although they use directions that arecompletely different and that they too differ markedly from the experimentally found ones. The predictions of themodels using, in a forced way, the measured experimental directions are good in most cases, which reveals asurprising insensitivity of these models to the main hypotheses on which their own formulations are based.
PB Elsevier
SN 0142-1123
SN 1879-3452 (electrónico)
YR 2023
FD 2023-05
LK https://hdl.handle.net/10272/22412
UL https://hdl.handle.net/10272/22412
LA eng
NO Chaves, V., Balbín, J. A., Navarro, A., Susmel, L., & Taylor, D. (2023). Calculations of biaxial fatigue limits with models using the experimental crack direction. In International Journal of Fatigue (Vol. 174, p. 107726). Elsevier BV. https://doi.org/10.1016/j.ijfatigue.2023.107726
NO The authors would like to thank the European Union, the Spanish Government and the Junta de Andalucía, Spain, for its financial support through grants PID2020-117407GB-I00 (FEDER/Ministerio de Ciencia e Innovación - Agencia Estatal de Investigación) and P18-FR-4306 ("Fondo Europeo de Desarrollo Regional (FEDER) y Consejería deEconomía, Conocimiento, Empresas y Universidad de la Junta de Andalucía, dentro del Programa Operativo FEDER 2014-2020").
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026