Formula - Torsional flexibility

Q.  Which of the following relation represents torsional flexibility?
- Published on 21 Sep 15

a. GJ
b. GL
c. GJ / L
d. L / GJ

ANSWER: L / GJ

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    Discussion

  • Sravanthi   -Posted on 25 Nov 15
    - Torsional flexibility: It is defined as the angle of twist produced by the unit torque applied.

    - The formula to calculate torsional flexibility is L / (GJ)

    here, G is the modulus of rigidity, J is the polar moment of inertia and L is the shaft length

    - Torsional flexibility is inversely proportional to torsional stiffness.

    - Torsional stiffness: It is defined as the torque required to produce unit angle of twist

    - The formula to calculate torsional flexibility is (GJ) / L

    - The S.I. unit of torsional stiffness is N.m/radian.

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