1. Maximum principal stress theory
2. Maximum principal strain theory
3. Maximum shear stress theory
4. Maximum strain – energy theory
Maximum shear stress theory
1. Square root of the diameter
2. Diameter
3. Square of the diameter
4. Cube of the diameter
Diameter
1. Square root of the diameter
2. Diameter
3. Square of the diameter
4. Cube of the diameter
Diameter
1. Maximum principal stress theory
2. Maximum principal strain theory
3. Maximum shear stress theory
4. Maximum strain – energy theory
Maximum shear stress theory
1. 9.50
2. 16.07
3. 28.52
4. 49.41
16.07
1. 8
2. 16
3. 24
4. 32
16
1. In ductile material local yielding may distribute stress concentration
2. Ductile material has larger Young’s materials
3. Poisson’s ratio is larger in ductile materials
4. Modulus of rigidity is larger in ductile materials.
In ductile material local yielding may distribute stress concentration
1. Surface hardening
2. Increasing stiffness of the material
3. Structural changes in the material
4. Residual compression at the surface
Residual compression at the surface
1. Axial stiffness is less than bending stiffness
2. Of absence of centrifugal effects in the rod
3. The number of discontinuities vulnerable to fatigue are more in the rod
4. At a particular time the rod has only one type of stress whereas the beam has both the tensile and compressive stresses
The number of discontinuities vulnerable to fatigue are more in the rod
1. 3.0
2. 1.5
3. 1.33
4. 4.0
1.5