The main objective of the present contribution is to compare the mechanical behavior of the TA6V and Ti555 alloys. In this aim, the mechanical parameters are identified on the basis of several mechanical tests at room temperature. The elastoviscopla sticky is assumed to follow the Norton Hoff model. This model is adjusted from experimental results extracted from uniaxial tensile tests at 4 different strain rates (5.10-5 s-1 ,2. 10-4 s-1,4. 10-3 s-1,10-2 s-1). The low anisotropy of the different alloys is investigated by comparing the results of the various mechanical tests defining different stress states (uniaxial tensile,large tensile,shear,compression). The identified models are implemented into Abaqus FE code. To demonstrate the efficiency of the Ti555 alloy compared to the TA6V,an industrial case is simulated by using the implemented models. This industrial case consists in two aircraft engine flanges maintained together by an Inconel bolt and submitted to tensile loading. Currently, the engine flanges are made of TA6V.
M. Ben Bettaieb T. Van Hoof L. Zhang H. Minnebo P. Dufour P. J. Jacques L.Duchene A. M. Habraken
Department ArGEnCo,DivisionMS2F,University of Liege,Chemin des Chevreuils 1,4000 Liege,Belgium CENAERO- Centre de Recherches en Aeronautique,Batiment Eole,Rue des Freres Wright,29 B-6041,Gosselie Universite catholique de Louvain,Institute of mechanics,materials and civil engineering (IMMC),IMAP, Department ArGEnCo,DivisionMS2F,University of Liege,Chemin des Chevreuils 1,4000 Liege,Belgium FNRS