Etude en fatigue oligocyclique multiaxiale en phase et hors phase d'un alliage de magnésium-lithium

Abstract : The aim of this thesis is the study of the influence of the out-of-phase on life duration in multiaxial low cycle fatigue of a magnésium-lithium alloy. In first chapter, we expose the state of the art of multiaxial low cycle fatigue of a magnesium-lithium alloy and the different criterion of life prediction existing in this domain. The second chapter will be devoted to the experimental study. In the third chapter, we will present a discussion of experimental results. In the fourth chapter, a metallographic study of the material we have used, we clear us and then give us a physical explication to the differents results we met. We will present in the five chapter, lot models of fatigue prediction of material in multiaxial low cycle fatigue in phase and out-of-phase. At last, a general conclusion will make a balance sheet of this memory
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Saâdia Bentachfine. Etude en fatigue oligocyclique multiaxiale en phase et hors phase d'un alliage de magnésium-lithium. Génie mécanique [physics.class-ph]. Université Paul Verlaine - Metz, 1993. Français. ⟨NNT : 1993METZ014S⟩. ⟨tel-01775429⟩

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