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Comportement cyclique et en fatigue d'un alliage cuivreux injecté sous pression

Abstract : These research works deal with the investigation of the cyclique and fatigue behaviour of an industrial high-pressure die cast brass. Mechanical tests highlight relatively important changes of elasticity domain during monotonic loading, mainly due to changes of the internal stress. This study was conducted under different scales of observation. TEM observations enabled hypothesis to explain the "original" cyclic behaviour of the alloy. Fatigue tests showed that fatigue life of the material is quite dependent of the presence of defects that may be due to manufacture process. A simplified version of a multi-mechanism model was used to simulate the cyclic behaviour of the study alloy.
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  • HAL Id : tel-02003599, version 1

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Grégory Flégeau. Comportement cyclique et en fatigue d'un alliage cuivreux injecté sous pression. Autre. INSA de Rouen, 2013. Français. ⟨NNT : 2013ISAM0015⟩. ⟨tel-02003599⟩

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