Civil Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 2 (Q.No. 34)
34.
If a shaft is simultaneously subjected to a toque T and a bending moment M, the ratio of maximum bending stress and maximum shearing stress is
Answer: Option
Explanation:
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Discussion:
3 comments Page 1 of 1.

Laxman Rebel said:   4 years ago
Thanks @Rajendra.

Bhavsingh said:   10 years ago
Ratio of M/T:

M = ((PY)*D^3)/32.

T = ((PY)*D^3)/16.

Cancel the above ratio (M/T) = 2M/T will come out.
(1)

Rajendra said:   10 years ago
Maximum bending stress = 32M/(pi)D*D*D.

Maximum shear stress = 16T/(pi)D*D*D.

Ratio of both gives the answer 2M/T.

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