Question:-
If shaft made from ductile material is subject to combined bending and twisting moments calculations based on which one of the following failure theories would give the most conservative value?
Option (A)
Maximum principal stress theory
Option (B)
Maximum shear stress theory
Option(C)
Maximum strain energy theory
Option(D)
Maximum distortion energy theory
Correct Option:
(B)
Question Solution:
Most conservative value mean safest design i.e. largest diameter. For ductile material, maximum shear stresses of theory gives higher value of diameter
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