A steel plate has 35mm thick has dimensions of 2.2x2.2m loaded in a tensile stress in longitudinal direction with 88 MP and a critical stress intensity factor 35 MPa. Vm. A crack of length of 45mm at one edge is discovered. Estimate the magnitude of maximum tensile stress at which failure will occur then determine the magnitude of static factor of safety, and also the magnitude of factor of safety according to fracture mechanics method ? ..10mark