Perpendicular Shear Stress for Plug Weld Joint Equation

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The following equations will determine the Perpendicular Shear Stress for Plug Weld Joint.

Perpendicular Shear Stress for Plug Weld Joint Equation

Shear Stress in Weld Base Area

Shear Stress in Weld Base Area
Where:

τz

= Shear stress in weld base area [MPa,psi]

F

= Shear force  [N, lb]

d

= Diameter of plug weld [mm,in]

i

= Number of welds 

Shear Stress in Weld Peripheral Area

Shear Stress in Weld Peripheral Area
Where:

τo

= Shear stress in weld peripheral area [MPa,psi]
F = Shear force  [N, lb]
d = Diameter of plug weld [mm,in]
s = Plate thickness [mm, in]
i = Number of welds