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?
Maximum principal stress theory
Maximum shear stress theory
Maximum strain energy theory
Maximum distortion energy theory
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
21 comments Page 3 of 3.

Mahesh said:   1 year ago
Answer is D.

When a shaft made from ductile material is subjected to combined bending and twisting moments, the theory of maximum distortion energy usually provides the most conservative estimate of failure. This theory takes into account both the normal and shear stresses to determine the critical failure condition.
(1)


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