Solder Butt Joint Calculator and Formulae

Solder Joint Design Calculations

Solder butt joint equations and calculator for stress intension, stress in shear, tensile stress in brazed joint.

Preview Solder Butt (End to End) Joint Strength Calculator

Allowed Joint stress in tension loading equation:

σ_A = S_U / k_T

Tensile stress in joint loading equation:

σ = F / ( b · s )

Minimum thickness of connected parts (solder line):

s_min = F / ( b · σ_A )

Strength of solder line check:

σ ≤ σ_A

where:

S_U = joint strength in tension of solder [psi, MPa],
k_T = tension safety coefficient (typically 2 or greater),
F = transferred force [lb, N],
b = width (minimum) of connected lumber [in, mm],
s = thickness (minimum) of connected parts (in, mm].

Reference:

Kent's Machine Engineers Handbook, 12th Edition Design and Production, 1950 Colin Carmichael

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