C-Channel Section Shaft

This calculator calculates the maximum allowable torsion for a shaft with a C-Channel shaped cross-section. This is done using the equation below.
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T =τmax×JbmaxT\ =\frac{\tau_{max} \times J}{b_{max}}T =bmax​τmax​×J​
The following are the variables for the equations...
T = the torsion, twisting torque or tension. (Nm, lb f ft).
τ (max) = maximum shear stress (Pa).
b = the inner breadth, i.e. the inner breadth of the channel section.
h = the inner height, i.e. the inner height of the channel section.
B = the larger breadth, i.e. the greater breadth of the channel section.
H = the larger height, i.e. the greater height of the channel section.
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Figure 1: Diagram of a Channel Section to Calculate the Torsion
Channel Section Torsion CalculatorInputs﻿﻿Total height, H
:15.00m​
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﻿﻿Top/bottom height, h
:3.00m​
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﻿﻿Shear stress, τ
:50.00Pa​
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﻿﻿Total breadth, B
:10.00m​
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﻿﻿Smaller breadth, b
:2.00m​
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Output﻿﻿Moment of Inertia, J
:608.50​
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﻿﻿Torsion, T
:3,380.56​
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T =τmax×JbmaxT\ =\frac{\tau_{max}\times J}{b_{max}}T =bmax​τmax​×J​
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