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.

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.

Gaurav said:   1 decade ago
Yes even I doubt it that if due to torsion shear stress is zero at centroidal axis or not.

Jaikishan giri said:   1 decade ago
Maximum at outer surface of the member.

Rajeswari said:   1 decade ago
Stress should be zero at the centroid axis as per the formula.

Suraj said:   10 years ago
How can option B be correct?

Abhii said:   9 years ago
According to me, option C is the correct one. Correct me if I'm wrong.

Satish said:   9 years ago
Yes, option C should be the correct answer.

Hitesh Daka said:   9 years ago
@All.

The Question is asked for machine member not particular for shaft.

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

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

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


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