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The torque that produces a twist of one radian in a shaft per unit length is called
  • a)
    Torsional rigidity
  • b)
    Bulk modulus
  • c)
    Torsion
  • d)
    Modulus of elasticity
Correct answer is option 'A'. Can you explain this answer?
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The torque that produces a twist of one radian in a shaft per unit le...
Torsional rigidity = CJ Units: kg cm2(or) N­mm2
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Torsional Rigidity

Torsional rigidity is the torque that produces a twist of one radian in a shaft per unit length. It is a measure of a material's resistance to twisting or torsion. This property is important in the design of shafts, axles, and other mechanical components that are subjected to twisting forces.

Factors affecting torsional rigidity

Several factors affect the torsional rigidity of a material:

1. Material properties: The torsional rigidity of a material depends on its modulus of rigidity, which is a measure of the material's resistance to deformation under shear stress.

2. Cross-sectional area: The torsional rigidity of a shaft is proportional to its cross-sectional area. A larger cross-sectional area produces a higher torsional rigidity.

3. Length of the shaft: The torsional rigidity of a shaft is inversely proportional to its length. A longer shaft produces a lower torsional rigidity.

Importance of torsional rigidity

Torsional rigidity is an important property in mechanical design because it determines the ability of a component to resist twisting and deformation under torsional stress. Components that are subjected to twisting forces, such as shafts and axles, must have high torsional rigidity to prevent failure.

Applications of torsional rigidity

Torsional rigidity is used in the design of many mechanical components, including:

1. Shafts: Shafts are used to transmit power and torque between machines. They must have high torsional rigidity to prevent twisting and deformation under torsional stress.

2. Axles: Axles are used to support and transmit the weight of a vehicle or machine. They must have high torsional rigidity to prevent deformation and failure under torsional stress.

3. Springs: Springs are used to store and release energy. They must have high torsional rigidity to prevent twisting and deformation under torsional stress.

Conclusion

Torsional rigidity is a measure of a material's resistance to twisting or torsion. It is an important property in mechanical design because it determines the ability of a component to resist twisting and deformation under torsional stress. Components that are subjected to twisting forces, such as shafts and axles, must have high torsional rigidity to prevent failure.
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The torque that produces a twist of one radian in a shaft per unit length is calleda) Torsional rigidityb) Bulk modulusc) Torsiond) Modulus of elasticityCorrect answer is option 'A'. Can you explain this answer?
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