A general failure criterion for spot welds is proposed with consideration of the plastic anisotropy and the separation speed for crash applications. A lower bound limit load analysis is conducted to account for the failure loads of spot welds under combinations of three forces and three moments. Based on the limit load solution and the experimental results, an engineering failure criterion is proposed with correction factors determined by different spot weld tests. The engineering failure criterion can be used to characterize the failure loads of spot welds with consideration of the effects of the plastic anisotropy, separation speed, sheet thickness, nugget radius and combinations of loads. Spot weld failure loads under uniaxial and biaxial opening loads and those under combined shear and twisting loads from experiments are shown to be characterized well by the engineering failure criterion.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A General Failure Criterion for Spot Welds with Consideration of Plastic Anisotropy and Separation Speed


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Pan, J. (Autor:in) / Prasad, P. (Autor:in) / Lin, S.-H. (Autor:in) / Tyan, T. (Autor:in)

    Kongress:

    SAE 2003 World Congress & Exhibition ; 2003



    Erscheinungsdatum :

    2003-03-03




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Modeling of plastic deformation and failure near spot welds in lap-shear specimens

    Lin,P.C. / Lin,S.H. / Pan,J. et al. | Kraftfahrwesen | 2004


    Modeling of Plastic Deformation and Failure Near Spot Welds in Lap-Shear Specimens

    Pan, J. / Lin, P.-C. / Lin, S.-H. | SAE Technical Papers | 2004


    Modeling of Plastic Deformation and Failure Near Spot Welds in Lap-Shear Specimens

    Lin, _P-C. / Lin, S-H. / Pan, J. et al. | British Library Conference Proceedings | 2004