For single sided welds, a local eccentricity is taken into account if a tensile force is transmitted perpendicular to the longitudinal axis of the weld. In this case, the tensile force produces a bending moment at the weld throat.
Free body diagram at weld throat |
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Total bending moment at weld throat due to asymmetry of the joint loading:
Mw = F1 x D
M = Mw-Tj x (th +tw sin(throat angle))/2
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See also Edge Weld Definitions for an explanation of weld terms.