The Effect of Tensile Strength on the Fatigue Life of Spot-Welded Sheet Steels U.S. Steel Corporation Technical Center Monroeville, PA

Format:

Conference/Event

Author/Creator:

Davidson, J. A., author.

Conference Name:

SAE International Congress & Exposition (1984-02-27 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1984

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

840110

Access Restriction:

Restricted for use by site license