The principal stresses at a point in a critical - section of a machine component are 1 = 60 MPa, 2 = 5 MPa and 3 = 40 MPa. For the material of the component, the tensile yield strength is y = 200 MPa. According to the maximum shear stress theory, the factor of safety is

The principal stresses at a point in a critical - section of a machine

1.	The principal stresses at a point in a critical - section of a machine component are ₁ = 60 MPa, ₂ = 5 MPa and ₃ = 40 MPa. For the material of the component, the tensile yield strength is _y = 200 MPa. According to the maximum shear stress theory, the factor of safety is
A.	1.67
B.	2.00
C.	3.60
D.	4.00
Answer» C. 3.60

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The principal stresses at a point in a critical - section of a machine component are 1 = 60 MPa, 2 = 5 MPa and 3 = 40 MPa. For the material of the component, the tensile yield strength is y = 200 MPa. According to the maximum shear stress theory, the factor of safety is

The principal stresses at a point in a critical - section of a machine component are 1 = 60 MPa, 2 = 5 MPa and 3 = 40 MPa. For the material of the component, the tensile yield strength is y = 200 MPa. According to the maximum shear stress theory, the factor of safety is

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The principal stresses at a point in a critical - section of a machine component are ₁ = 60 MPa, ₂ = 5 MPa and ₃ = 40 MPa. For the material of the component, the tensile yield strength is _y = 200 MPa. According to the maximum shear stress theory, the factor of safety is