Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 7 (Q.No. 19)
19.
Two solid shafts 'A' and 'B' are made of the same material. The shaft 'A' is of 50 mm diameter and shaft 'B' is of 100 mm diameter. The strength of shaft 'B' is __________ as that of shaft A.
Discussion:
11 comments Page 1 of 2.
Juju said:
1 decade ago
Can any one explain?
Raheem said:
1 decade ago
Any can explain how it will be answer D?
Roshan said:
10 years ago
Here torque formula is used to compare their strength. As we know that torque is directly proportional to d^3 of the shaft.
NwosuKC said:
9 years ago
Not clear, please explain in detail.
Abreeque said:
9 years ago
M/sigma = z, and z = i/y.
= pi * d^4/64/d/2,
= pi * d^3/32,
So, z1/z2 = d1^3/d2^3.
= (50/100)^3
= (1/2)^3 = 1/8.
= pi * d^4/64/d/2,
= pi * d^3/32,
So, z1/z2 = d1^3/d2^3.
= (50/100)^3
= (1/2)^3 = 1/8.
Satyabrata said:
8 years ago
Yes, torque solid shaft formula is used to get the answer.
Krunal degamadiya said:
8 years ago
It should be 1/8 times.
Naresh said:
8 years ago
Thanks @Aabreeque and @Roshan.
Yatheesh said:
6 years ago
Answer is 1/8.
Needo said:
4 years ago
@Yatheesh,
It's of the shaft, So option B is right.
It's of the shaft, So option B is right.
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