Mechanical Engineering - Machine Design - Discussion
Discussion Forum : Machine Design - Section 1 (Q.No. 47)
47.
Two shafts A and B under pure torsion are of identical length and identical weight and are made of the same material. The shaft A is solid and the shaft B is hollow. We can say that
Discussion:
16 comments Page 2 of 2.
Saikumar said:
1 decade ago
Natural frequency is higher for hollow shaft with same weight. Strength of hollow shaft is higher with same weight. Stiffness is more for hollow shaft with same.
Anjana said:
1 decade ago
In qn base for comparison is not given, for cost point of view hollow is best, but in case of maximum load carrying capacity and resist the torsion the solid shaft is better.
Hardik patel said:
1 decade ago
As the area of resisting the load in hollow shaft will reduce and in solid shaft will very high so pressure acting upon the solid shaft is less as compared to hollow so it is safe.
Abanoub said:
1 decade ago
The question didn't determine the point of comparison between the two shafts.
Don said:
1 decade ago
May be but here two shafts under pure torsion so solid shaft better than hollow shaft because it will resist more torsion than hollow shaft.
Ganiyu Bashir said:
1 decade ago
Shaft B is better probably because it saves cost and material used.
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