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
zero at both the centroidal axis and outer surface of the member
maximum at both the centroidal axis and outer surface of the member
zero at the centroidal axis and maximum at the outer surface of the member
maximum at the centroidal axis and zero at the outer surface of the member
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 1 of 2.

AJAY kumar gupta said:   7 years ago
Yes, right. Thanks @Atc.

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.

Prashant said:   8 years ago
Machine member = shaft or not?

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.

Akhilesh pal said:   8 years ago
I also agree with option C.

Santosh said:   8 years ago
I think Option C is correct.

Azad kurmi said:   8 years ago
Shear will be zero at the centroidal axis and will increase up to max as we towards pheriphery.

Waseem said:   8 years ago
@Jnk.

C is correct. Shafter is also a machine member. If not specified we can consider it as shaft.

Deepak said:   9 years ago
@Hitesh and @Jnk.

Can you tell me anyone machine member on whose centroidal axis shear stress is max?

Jnk said:   9 years ago
Yes agree with Hitesh. Question is not related to particular shaft.


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