A large flat plate is subjected to constant-amplitude uniaxial cyclic tensile stresses of a maximum stress of 123 and a minimum
stress of 29 MPa. If before testing the largest surface crack is 0.77 mm and the plain-strain fracture toughness of the plate is 31.2 MPa m1/2, estimate the fatigue life of the plate in cycles to failure. For the plate, m
