Etude expérimentale et modélisation de la mise en forme à chaud d'alliages d'aluminium innovants

Abstract : The ongoing researches to lighten aeronautical structures have led to the development of new materials like Al-Cu-Li and Al-Mg-Li alloys. These alloys exhibit lower density and higher mechanical properties than conventional alloys. However, their ability to be formed either by cold or hot forming process is not well known. The aims of this PhD research works are thus to characterize the formability of these new alloys and to suggest the most appropriate forming sequence to elaborate complex aeronautic parts. Various forming processes will be studied such as cold forming by stretching of sheet metal parts or hot forming by stamping of sheet metal parts after or during different heat treatments. An experimental as well as a numerical approach will be used to develop the forming process of these new alloys to elaborate fuselage panels with more or less complex shapes. These PhD research works are a component of a larger project led by IRT Jules Verne and entitled “Advanced forming of low density alloys for aeronautic applications”. This project includes several firms from aeronautic domain (AEROLIA SAS, ACB, AIRBUS SAS and CONSTELLIUM).
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Wael Younes. Etude expérimentale et modélisation de la mise en forme à chaud d'alliages d'aluminium innovants. Mécanique des matériaux [physics.class-ph]. Ecole nationale supérieure d'arts et métiers - ENSAM, 2016. Français. ⟨NNT : 2016ENAM0028⟩. ⟨tel-01447792⟩

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