Solder Joint - Bevel Joint Formula and Calculation

Solder Joint - Bevel Joint Calculator / Formulae

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

Solder tapered angle joint equations

Preview Solder Joint Bevel Surfaces Strength Calculator

Allowed Tapered Joint stress in tension loading equation:

σ_A = S_U / k_T

Joint allowable stress in shear loading equation:

τ_A = S_US / k_s

Tensile stress in joint loading equation:

σ = [ F · sin² ( ( α · π)] / 180)) / ( b · s )

Shear stress in joint loading equation:

τ = [ F · sin ( ( α · π) / 180)) · cos ( ( α · π)] / 180 )/ ( b · s )

Strength check

σ ≤ σ_A & T ≤ T_A

Minimum thickness of connected parts

s_min = max{s₁, s₂}

where:

s₁ = [ F · sin² ( ( α · π ) / 180 ) ] / ( b · σ_A)

s₂ = [ F · sin ( ( α · π ) / 180 ) · cos ( ( α · π ) / 180 )] / ( b · τ_A)

where:

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

Reference:

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

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