Mechanical Engineering > GATE 2017 SET-2 > Theories of Failure
The principal stresses at a point in a critical section of a machine component are σ1 = 60 MPa, σ2 = 5 MPa and σ3 = -40 MPa. For the material of the component, the tensile yield strength is σy = 200 MPa. According to the maximum shear stress theory, the factor of safety is
Correct : b
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