Design of Machi...

A shaft rotating at constant speed is subjected to an axial tensile stress of 20 kN/mm² and bending stress of 30 kN/mm². The stress ratio is

A steel component has an endurance limit of 450 MPa. The theoretical stress concentration factor and notch sensitivity of the material is 2.51 and 0.8 respectively. The corrected endurance limit in MPa is __________

For a particular component undergoing fatigue testing, the following data is obtained:

Corrected endurance limit = 400 MPa

Maximum stress = 100 MPa, Minimum stress = 0

A machine component is subjected to two-dimensional stresses. The tensile stress in y-direction varies from 20 to 60 N/mm² while in x-direction varies from 40 to 90 N/mm². The endurance limit is 270 N/mm². Calculate the mean and amplitude stress (in N/mm²)