Plug and Slot Welds

Written by Jerry Ratzlaff on . Posted in Welding

Welding Related Articles

 

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Axial Force on Perpendicular Plug Weld formulas

\(\large{ \tau_b = \frac{ P }{ 0.5 \; d^2 \; n  }     }\)  
\(\large{ \tau_p = \frac{ P }{ 2.2 \; d \; t \; n  }     }\)  

Where:

\(\large{ \tau_b }\) (Greak symbol tau) = shear stress in weld base area

\(\large{ \tau_p }\) (Greak symbol tau) = shear stress in weld peripheral area

\(\large{ d }\) = diameter of plug weld

\(\large{ n }\) = number of welds

\(\large{ t }\) = plate thickness

\(\large{ P }\) = total axial force

 

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Axial Force on Bevel Plug Weld formulas

\(\large{ \tau_b = \frac{ P }{ 0.8 \; d^2 \; n  }     }\)  
\(\large{ \tau_p = \frac{ P }{ 3.1 \; d \; t \; n  }     }\)  

Where:

\(\large{ \tau_b }\) (Greak symbol tau) = shear stress in weld base area

\(\large{ \tau_p }\) (Greak symbol tau) = shear stress in weld peripheral area

\(\large{ d }\) = diameter of plug weld

\(\large{ n }\) = number of welds

\(\large{ t }\) = plate thickness

\(\large{ P }\) = total axial force

 

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Axial Force on Perpendicular Slot Weld formulas

\(\large{ \tau_b = \frac{ P }{ 0.7 \; w \; L \; n  }     }\)  
\(\large{ \tau_p = \frac{ P }{ 1.4 \; t \; L \; n  }     }\)  

Where:

\(\large{ \tau_b }\) (Greak symbol tau) = shear stress in weld base area

\(\large{ \tau_p }\) (Greak symbol tau) = shear stress in weld peripheral area

\(\large{ L }\) = length of welds

\(\large{ n }\) = number of welds

\(\large{ t }\) = plate thickness

\(\large{ P }\) = total axial force

\(\large{ w }\) = width of weld

 

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Axial Force on Bevel Slot Weld formulas

\(\large{ \tau_b = \frac{ P }{ w \; L \; n  }     }\)  
\(\large{ \tau_p = \frac{ P }{ 2 \; t \; L \; n  }     }\)  

Where:

\(\large{ \tau_b }\) (Greak symbol tau) = shear stress in weld base area

\(\large{ \tau_p }\) (Greak symbol tau) = shear stress in weld peripheral area

\(\large{ L }\) = length of welds

\(\large{ n }\) = number of welds

\(\large{ t }\) = plate thickness

\(\large{ P }\) = total axial force

\(\large{ w }\) = width of weld

 

Tags: Equations for Welded Stress and Strain