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Mode I failure modeling of friction stir welding joints

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Abstract

This paper analyzes mechanical response by finite element method up to the decohesion failure in fracture mode I for joints of friction stir welding (FSW) of an aluminum alloy. It first describes experimental investigations on specimens with FSW embedded, subjected to uniform traction and local punch tests used to characterize local elastic and plastic material parameters. The heterogeneity of the mechanical properties induced by the FSW process is taken into account for the elastic-plastic finite element simulation. The growing damage and the opening failure of the welding zone are described by the adoption of a cohesive interface model with specific mechanical properties.

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Authors and Affiliations

  1. Dipartimento di Ingegneria Strutturale e Geotecnica, Università di Palermo, Viale delle Scienze, 90128, Palermo, Italy

    Guido Borino & Francesco Parrinello

  2. Dipartimento di Tecnologia Meccanica, Produzione ed Ingegneria Gestionale, Università di Palermo, Viale delle Scienze, 90128, Palermo, Italy

    Livan Fratini

Authors
  1. Guido Borino
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  2. Livan Fratini
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  3. Francesco Parrinello
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Correspondence to Livan Fratini.

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Borino, G., Fratini, L. & Parrinello, F. Mode I failure modeling of friction stir welding joints. Int J Adv Manuf Technol 41, 498–503 (2009). https://doi.org/10.1007/s00170-008-1498-1

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  • DOI: https://doi.org/10.1007/s00170-008-1498-1

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