Tensile-shear spot-weld specimens were tested to determine the effect of base-metal tensile properties on fatigue life. Four sheet thicknesses (t) were investigated. Base-metal yield strength ranged between 186 and 757 MPa (27 and 110 ksi).Results showed that fatigue life was independent of base-metal strength for lives greater than 104 cycles. At shorter lives, fatigue performance improved with increasing base-metal strength. For a given cyclic load range, ΔP, fatigue life increased at all lives with increasing sheet thickness (t).Fatigue results from both this and a previous study were used to develop a spot-weld fatigue design curve relating spot-weld tensile-shear fatigue life to the correlation parameter, ΔE, equal to ΔPΔΘN1/2/t. Weld-nugget rotation, ΔΘN, is a design-dependent variable related to joint stiffness.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The Effect of Tensile Strength on the Fatigue Life of Spot-Welded Sheet Steels


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Imhof, E. J. (Autor:in) / Davidson, J. A. (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1984



    Erscheinungsdatum :

    01.02.1984




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The effect of tensile Strength on the fatigue life of spot- welded sheet steels

    Davidson,J.A. / Imhof,E.J. / US Steel,US | Kraftfahrwesen | 1984


    A Review of the Fatigue Properties of Spot-Welded Sheet Steels

    Davidson, James A. | SAE Technical Papers | 1983


    Effect of Nugget Size on Tensile and Fatigue Strength of Spot Welded AZ31 Magnesium Alloy

    Behravesh, Behzad / Glinka, Grzegorz / Jahed, Hamid et al. | SAE Technical Papers | 2010


    Fatigue strength of single spot-welded joints of rephosphorized high-strength and low-carbon steels

    Kitagawa,H. / Satoh,T. / Fujimoto,M. et al. | Kraftfahrwesen | 1985