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### Stress Hollow Rectangle Thin Wall Tube Torsion Equations and Calculator

**Beam Deflection and Stress Equation and Calculators**

Torsional Deformation and Stress Hollow Rectangle Thin Wall Tube Section Equations and Calculator.

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Torsional Deformation and Stress Hollow Rectangle Thin Wall Tube Section Calculator

Angle of Twist under applied Torque Moment

θ = ( T L ) / ( K G )

Shear Stress

Near the mid length of the short sides

Near the mid length of the Long sides

Where:

θ = angle of twist (radians)

α = degrees

T = Twisting or torque moment force-length, (in-lbs, N-mm)

L = Length (in, mm)

a, b = Diameter (in, mm)

t = Thickness wall (in, mm)

τ = Unit shear stress force / area (lbs/in^{2}, N/mm^{2})

G = Modulus of rigidity force / area (lbs/in^{2}, N/mm^{2})

K = Polar Moment of Inertia (in^{4}, mm^{4}) for section

Reference:

Roarks Formulas for Stress and Strain, 7th Edition, Table 10.1 Formulas for torsional deformation and stress.

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