Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 4 (Q.No. 24)
24.
Two shafts 'A' and 'B' have the same material. The shaft 'A' is solid of diameter 100 mm. The shaft 'B' is hollow with outer diameter 100 mm and inner diameter 50 mm. The torque transmitted by shaft 'B' is __________ as that of shaft 'A'.
1/6
1/8
1/4
15/16
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.

Julius said:   4 years ago
What's the value of τ?
(1)

Pavan said:   3 years ago
Actually, as per the direct formula.

The Ratio of torque in case of hollow and solid shafts subjected to the same maximum shear stress.

T(hollow)/T(solid) = (D^4 - d^4)/D^4.
If you substitute in this formula you get exactly 15/16.


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