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Tube / Pipe Circumference Butt Weld With Torque Joint Calculation

Weld Design Menu

The following equations will determine the circumeferential stress applied to a a welded joint under going torque loadings.

Circumference Butt Weld Stress with Torque Shear Stress

Where:

= Shear stress [MPa,psi]

u

= Constant
                Metric units u=1000
                Imperial units u=12
W = Section modulus throat area [mm3, in3]

T

= Torque applied [Nm, lb-ft]

Comparative Stress 

Where:

= Comparative stress [MPa,psi]
= Shear stress  [MPa,psi]
= Conversion coefficient of weld joint 

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