Solder Joint - Tube Joint Calculation / Formula - Torque

Solder Joint Design Calculations

Solder tube in tube (pipe in pipe) joint torque equations for stress intension, stress in shear, tensile stress in soldered joint.

Solder tube

Joint allowable stress in shear

Joint allowable stress in shear

Shear stress from force

Shear stress from force

Shear stress from moment

Shear stress from moment

Resulting reduced stress

Resulting reduced stress

Strength check

tred tA

S Minimum Overlap Depth

S Minimum Overlap Depth

Optimal Overlap Depth (L)

Lopt = max {Lmin, L1} [mm]

where:

Optimal Overlap Depth (L)

Where:

SUS

joint strength in shear [MPa]

kS

shear safety coefficient

F

transferred force [N]

d

step diameter [mm]

L

step depth [mm]

Mk

torque [MPa]

SUb

tensile strength of basic material [MPa]