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Rod to Plate Welds

bplc 1A

Side Bending Momentum on PJP Fillet Weld all Around formula

  • Partial Joint Penetration  -  Weld fills a portion of the gap between the two pieces.
\( \tau \;=\;  \dfrac{ 5.66 \cdot M }{ h \cdot D^2 \cdot \pi }  \) 
Symbol English Metric
\( \tau \) (Greak symbol tau) = shear stress \(lbf\;/\;in^2\) \(Pa\)
\( M \) = bending moment \(lbf-in\) \(N-mm\)
\( h \) = weld throat thickness \( in \) \( mm \)
\( D \) = circular rod diameter \( in \) \( mm \)
\( \pi \) = Pi \(3.141 592 653 ...\) \(3.141 592 653 ...\)

          

bplc 1A

Torsion Momentum on PJP Fillet Weld all Around formula

  • Partial Joint Penetration  -  Weld fills a portion of the gap between the two pieces.
\( \tau = \dfrac{ 2.83 \cdot T }{ h \cdot D^2 \cdot \pi }   \) 
Symbol English Metric
\( \tau \) (Greak symbol tau) = shear stress \(lbf\;/\;in^2\) \(Pa\)
\(\large{ T }\) = torque force \(lbf-in\) \(N-mm\)
\( h \) = weld throat thickness \( in \) \( mm \)
\( D \) = circular rod diameter \( in \) \( mm \)
\( \pi \) = Pi \(3.141 592 653 ...\) \(3.141 592 653 ...\)

 

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