%0 Journal Article
%A Calderón-Uríszar-Aldaca, Iñigo
%A Biezma, María Victoria
%A Matanza, Amaia
%A Briz, Estibaliz
%A Bastidas, David M.
%T Second-order fatigue of intrinsic mean stress under random loadings
%D 2020
%@ 0142-1123
%X A fatigue process due to random loading that is progressively damaging a certain structural detail will vary in the presence of mean stresses. The variations are already considered in crack propagation laws and by applying equivalent 0-mean stress ranges from the Palmgren–Miner linear rule. Nevertheless, if the mean stress is intrinsic, instead of a direct consequence of the random loading, other second-order effects will have to be taken into account. Those effects are cycle quasi-ordering, histogram variations, and apparent mean tension, which are identified and defined in this study and, finally, developed in a case study for demonstrative purposes.
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