%0 Journal Article
%T A new approach to characterizing and modeling the high cycle fatigue properties of cast materials based on self-heating measurements under cyclic loadings
%+ MMA
%A Ezanno, Anthony
%A Doudard, Cédric
%A Calloch, Sylvain
%A Heuzé, Jean-Loup
%Z WOS
%< avec comité de lecture
%@ 0142-1123
%J International Journal of Fatigue
%I Elsevier
%V 47
%P 232-243
%8 2013
%D 2013
%R 10.1016/j.ijfatigue.2012.09.005
%K Micro-plasticity
%K Casting defects
%K Self-heating tests
%K Cyclic loadingsJournal articles
%X The present paper proposes, a new model for high cycle fatigue of metallic cast materials (i.e., containing initial casting micro-flaws). This model is developed in a probabilistic two-scale framework taking into account the presence of a population of initial micro-flaws by an indirect approach. The proposed model not only accounts for the failure of samples under high cycle loadings, but also for the thermal effects during cycling in a unified theoretical framework. Thus, an ad hoc identification procedure, essentially based on self-heating tests under cyclic loadings, is proposed. The performance of the proposed model is estimated by comparing experimental and theoretical results in the case of classical fatigue tests on a cast copper-aluminum alloy. The results are very promising.
%G English
%L hal-00785005
%U https://hal.science/hal-00785005
%~ UNIV-BREST
%~ ENSTA-BRETAGNE
%~ ENSTA-BRETAGNE-LBMS
%~ ENIB