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Torque Applied Deformation and Stress of a Cross Shaft Section Calculator

K = 2Cs4

Varies with s / r as follows

For:

0   ≤   r / s ≤   0.9

Angle of Twist under applied Torque Moment

Angle of Twist under applied Torque Moment

θ = ( T L ) / ( K G )


Shear Stress Maximum

At M Location:

Angle of Twist under applied Torque Moment

Where BM varies with r / s as follows:

for 0.1 ≤ r / s ≤ 0.5

Angle of Twist under applied Torque Moment

At N Location:

Angle of Twist under applied Torque Moment

Where BN varies with r / s as follows:

for 0.3≤ r / s ≤ 0.9

Angle of Twist under applied Torque Moment

Note: BN > BM for r / s > 0.32

Where:

θ = angle of twist (radians),
T = Twisting or torque moment force-length, (in-lbs, N-mm),
L = Length of Section (in, mm),
h = Length as Indicated (in, mm),
r, s = Dimension as Indicated (in, mm),
τ = Unit shear stress force / area (lbs/in2, N/mm2),
G = Modulus of rigidity force / area (lbs/in2, N/mm2),
K = Polar Moment of Inertia (in4, mm4) for section

References:

Roark's Formulas for Stress and Strain

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