Failure modelling of friction stir welded joints in tensile tests

Guido Borino¹, Livan Fratini², Francesco Parrinello¹, Antonino Bulgarella²

¹University of Palermo, Dipartimento di Ingegneria Strutturale e Geotecnica, Palermo, Italy.
²University of Palermo, Dipartimento di Tecnologia Meccanica, Produzione ed Ingegneria Gestionale, Palermo, Italy.

DOI:

https://doi.org/10.7494/cmms.2009.1.0205

Abstract:

The paper concerns with the mechanical modelling and the finite element simulation of the fracture failure in mode I of linear joints of aluminum friction stir weldings. The problem is analyzed employing a bulk finite strain-hardening plasticity model able to characterize the spatial diffuse plastic strains that initially develop in the neighbouring extended zones of the welding line. Moreover, the decohesion process is described by a zero thickness interface model which is spatially inserted along the line of the welding.

Cite as:

Borino, G., Fratini, L., Parrinello, F., & Bulgarella, A. (2009). Failure modelling of friction stir welded joints in tensile tests. Computer Methods in Materials Science, 9(1), 37 – 42. https://doi.org/10.7494/cmms.2009.1.0205

Article (PDF):

Keywords:

Friction stir welding, Finite elements, Cohesive interface, Failure analysis

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