Mechanical Engineering - Machine Design - Discussion
Discussion Forum : Machine Design - Section 4 (Q.No. 50)
50.
If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?
Discussion:
22 comments Page 2 of 3.
Sandip said:
5 years ago
B is the correct answer.
Rajkotha said:
5 years ago
In question, there are two points that need to be noted.
1. Ductile. 2. Most conservative.
Hence for ductile with the most conservative maximum principal stress theory is to be considered.
1. Ductile. 2. Most conservative.
Hence for ductile with the most conservative maximum principal stress theory is to be considered.
Vinay BEL said:
6 years ago
Maximum shear stress theory is the right one.
Anonymous said:
8 years ago
The principle stress theory is for brittle material.
The principle shear stress theory is specifically for a ductile material.
So, the correct option is B.
The principle shear stress theory is specifically for a ductile material.
So, the correct option is B.
Rohit Koundal said:
8 years ago
Guest theory for ductile material, which is also maximum shear stress theory also called Teresa theroy.
Kuldeep singh said:
9 years ago
Answer will be option D that is the max. Distortion energy theory because this provide the best and economic design for the ductile materials. Also answer B could be correct if option D is not given because this also provide good results for ductile materials but the design is oversafe that means safe but uneconomic design.
A.jay said:
9 years ago
[B] is the right answer.
S K mondal said:
9 years ago
Yes, B is right.
Abhi said:
9 years ago
Maximum principal stress theory for brittle material Not for ductile.
Sumit Thakur said:
9 years ago
Option (B) Answer is maximum shear stress theory.
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