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TWOSWORDALI
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A solid steel shaft 10 m long and 70mm diameter is subjected to a torque of 4.5 kNm.
In order to save the weight the solid shaft is to be replaced be a thin walled hollow shaft of wall thickness 10mm.
What diameter of hollow shaft is required to carry the same torque if the maximum allowable stress is the same as that experienced by the solid shaft?
If the modulus of rigdity of the steel is 80 x 109 N/m2 calculate the angle of twist for the thin walled shaft.
Considering materials/ manufacturing costs and application constraints such as weight, inertia, balance, size and reliability, describe a suitable application for each type of shaft stating why that type is more suitable than the alternative.
Ive spent 3 weeks on this darn question
In order to save the weight the solid shaft is to be replaced be a thin walled hollow shaft of wall thickness 10mm.
What diameter of hollow shaft is required to carry the same torque if the maximum allowable stress is the same as that experienced by the solid shaft?
If the modulus of rigdity of the steel is 80 x 109 N/m2 calculate the angle of twist for the thin walled shaft.
Considering materials/ manufacturing costs and application constraints such as weight, inertia, balance, size and reliability, describe a suitable application for each type of shaft stating why that type is more suitable than the alternative.
Ive spent 3 weeks on this darn question