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A certain steel has proportionality limit of 300 N/mm^{2} in simple tension. It is subjected to principal stress of 120 N/mm^{2} (tensile), 60 N/mm^{2} (tensile) and 30 N/mm^{2} (compressive). The factor of safety according to maximum shear stress theory is
All the theories of failure, will give nearly the same result when
The principal stresses at a point in a critical  section of a machine component are σ_{1} = 60 MPa, σ_{2} = 5 MPa and σ_{3} = – 40 MPa. For the material of the component, the tensile yield strength is σ_{y} = 200 MPa. According to the maximum shear stress theory, the factor of safety is
Which of the following theories of failure is most appropriate for a brittle material?
In a structural member, there are perpendicular tensile stresses of 100 N/mm^{2} and 50 N/mm^{2}. What is the equivalent stress in simple tension, according to the maximum principal strain theory? (Poisson’s ratio = 0.25)
Permissible bending moment in a circular shaft under pure bending is M, according to maximum principal stress theory of failure. According to maximum shear theory of failure, the permissible bending moment in the shaft is
A shaft subjected to pure torsion is to be designed which of the following theories gives the largest diameter of shaft?
If maximum principal stress σ_{1} = 60 N/mm^{2}, σ_{2} and σ_{3} of value zero act on a cube of unit dimensions, then the maximum shear stress energy stored in it would be
In a 2D stress system, the two principal stress are p_{1} = 180 N/mm^{2} (tensile) and p_{2} (compressive). For the materials, yield stress in simple tension and compression is 240 N/mm^{2} and Poisson’s ratio is 0.25. According to maximum normal strain theory for what value of p_{2} shall yielding commence?
31 docs280 tests

31 docs280 tests
