Help 7.16 Started: Mar 13 at 11:30pm Quiz Instructions Question 1 1 pts Alarge flat plate...
A large flat plate is subjected to constant-amplitude uniaxial cyclic tensile stresses of a maximum stress of 147 and a minimum stress of 32 MPa. If before testing the largest surface crack is 0.98 mm and the plain-strain fracture toughness of the plate is 33.4 MPa m1/2, estimate the fatigue life of the plate in cycles to failure. For the plate, m = 3.7 and A = 5.0 x 10-12 in MPa and meter units. Assume Y = 1.14
A large flat plate is subjected to a constant-stress-amplitude uniaxial cyclic tensile stress. Compute the surface crack length after 7.0x10 loading cycles. Assume the initial edge surface crack length of 1.80 mm and a maximum tensile stress of 160 MPa. The minimum tensile stress is 0, Assume m = 1.8 and A = 7.5×10-12 in MPa and meter units. Assume Y -1.25. A large flat plate is subjected to a constant-stress-amplitude uniaxial cyclic tensile stress. Compute the surface crack length...
Question 1 An end capped cylindrical pressure vessel with internal pressure p = fully supported at one end, is also subjected to a force F= 10 kN in the y direction at the other end as shown. The internal diameter of the pressure vessel is d= 160 mm and its thickness is t= 10 mm 3 MPa, assumed to be Determine the magnitudes of the stress components in x, y and z coordinates at points H and K and sketch...