### Solder Joint - Bevel Joint Calculator / Formulae

**Solder Joint Design Calculations**

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

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 · sin^{2} ( ( 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{s_{1}, s_{2}}

where:

s_{1} = [ F · sin^{2} ( ( α · π ) / 180 ) ] / ( b · σ_{A})

s_{2} = [ 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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