Mechanical Engineering - Machine Design - Discussion
Discussion Forum : Machine Design - Section 5 (Q.No. 5)
5.
When a machine member is subjected to torsion, the torsional shear stress set up in the member is
Discussion:
18 comments Page 1 of 2.
ATC said:
7 years ago
Shear stress produced during Torsion as well as bending. Shear stress produced during bending is negligible.
During torsion : It is zero at the centroidal axis and maximum at outer and inner fibres.
During bending: It is maximum at centroidal axis or neutral axis and zeroes at extreme fibres.
During torsion : It is zero at the centroidal axis and maximum at outer and inner fibres.
During bending: It is maximum at centroidal axis or neutral axis and zeroes at extreme fibres.
Virupaksha said:
8 years ago
Answer [C] is correct.
Torsional shear stress induced in the member is directly proportional to the radius of shaft hence torsional shear stress is zero at the centre of the shaft and maximum at the outer surface.
Torsional shear stress induced in the member is directly proportional to the radius of shaft hence torsional shear stress is zero at the centre of the shaft and maximum at the outer surface.
Sankarshan said:
1 decade ago
As the formula suggests that shear stress increases as the radius increases, hence the shear stress should be maximum at the outer surface (maximum possible radius) and zero at the centroidal axis.
Deepak said:
9 years ago
@Hitesh and @Jnk.
Can you tell me anyone machine member on whose centroidal axis shear stress is max?
Can you tell me anyone machine member on whose centroidal axis shear stress is max?
Waseem said:
8 years ago
@Jnk.
C is correct. Shafter is also a machine member. If not specified we can consider it as shaft.
C is correct. Shafter is also a machine member. If not specified we can consider it as shaft.
Azad kurmi said:
8 years ago
Shear will be zero at the centroidal axis and will increase up to max as we towards pheriphery.
Gaurav said:
1 decade ago
Yes even I doubt it that if due to torsion shear stress is zero at centroidal axis or not.
Hitesh Daka said:
9 years ago
@All.
The Question is asked for machine member not particular for shaft.
The Question is asked for machine member not particular for shaft.
Abhii said:
9 years ago
According to me, option C is the correct one. Correct me if I'm wrong.
Jnk said:
9 years ago
Yes agree with Hitesh. Question is not related to particular shaft.
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