Influence of Friction Stir Welding residual stresses on the mechanical behaviour of aluminium stiffened panels

Rui Paulo (1) , Pierpaolo Carlone (2) , Robertt Valente (1) , Filipe Teixeira-Dias (1) , Gaetano Palazzo (2)

1 Universidade de Aveiro
2 UNISA - Università degli Studi di Salerno = University of Salerno

In this work, the longitudinal residual stresses that arise from FSW processes were measured by means of the Contour Method. These residual stresses were then introduced into a numerical simulation model based on the Finite Element Method (FEM), and their effect on the buckling collapse load of aluminium stiffened panels was assessed. The sensitivity of the models to initial geometrical imperfections was also analysed.

Mots clés: Stiffened panels; Friction stir welding; Residual stresses; Initial geometrical imperfections

Domaines: Analyse numérique [math.NA]; Mécanique [physics]; Sciences de l'ingénieur [physics]

Rui Paulo, Pierpaolo Carlone, Robertt Valente, Filipe Teixeira-Dias, Gaetano Palazzo. Influence of Friction Stir Welding residual stresses on the mechanical behaviour of aluminium stiffened panels. 2nd ECCOMAS Young Investigators Conference (YIC 2013), Sep 2013, Bordeaux, France. ⟨hal-00855852⟩