For a hollow shaft of external and internal diameters 10 cm and 5 cm respectively, the torsional sectional modulus will be approximately
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the ans is 184.08 cubic cm
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Given:
A hollow shaft internal diameter 5 cm and external diameter 10 cm
To Find:
Torsional Section Modulus of hollow shaft
Solution:
Section Modulus of a shaft- section modulus of a body is defined as the ratio of total area moment of Inertia and the distance of extreme fibre.
I = area moment of Inertia
y = extreme fibre position
Section modulus of a hollow shaft
I of hollow shaft =
y =
y = 5 cm
The section modulus of the above hollow shaft is 184
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