Skip to main content

Beam to Plate Welds

apc 1

Point Load on CJP Fillet Weld formulas

  • Complete Joint Penetration  -  Weld completely fills the gap between the two pieces.

\( \sigma \;=\;   \dfrac{ 6 \cdot F_a \cdot H }{  L \cdot t^2  }\) 

\( \tau  \;=\;  \dfrac{ F_a }{  L \cdot t  }\)
Symbol English Metric
\( \sigma \) (Greek symbol sigma) = Weld Stress \(lbf\;/\;in^2\) \(Pa\)
\( \tau \) (Greak symbol tau) = Shear Stress \(lbf\;/\;in^2\) \(Pa\)
\( F_a \) = Total Applied Force \( lbf \) \(N\)
\( H \) = Height of Lever Arm \( in \) \( mm \)
\( L \) = Weld Length \( in \) \( mm \)
\( t \) = Plate Thickness \( in \) \( mm \)

          

bpc 2

Bending Moment on CJP Fillet Weld formula

  • Complete Joint Penetration  -  Weld completely fills the gap between the two pieces.
\( \sigma \;=\;  \dfrac{ 6 \cdot M }{ L \cdot t^2 }\) 
Symbol English Metric
\( \sigma \) (Greek symbol sigma) = Weld Stress \(lbf\;/\;in^2\) \(Pa\)
\(\large{ M }\) = Bending Moment \( in \) \( mm \)
\( L \) = Weld Length \( in \) \( mm \)
\( t \) = Plate Thickness \( in \) \( mm \)

         

bpc 3

Torsion moment on CJP Fillet Weld formula

  • Complete Joint Penetration  -  Weld completely fills the gap between the two pieces.
\( \tau  \;=\;  \dfrac{ T \cdot ( 3 \cdot L + 1.8 \cdot t ) }{  L^2 \cdot t^2 } \)
Symbol English Metric
\( \tau \) (Greak symbol tau) = Shear Stress \(lbf\;/\;in^2\) \(Pa\)
\(\large{ T }\) = torque force \( in \) \( mm \)
\( L \) = Weld Length \( in \) \( mm \)
\( t \) = Plate Thickness \( in \) \( mm \)

 

Piping Designer Logo 1