An engineering member is to be made of 18-Ni maraging steel (vacuum melted). The member is a plate loaded in tension, and it may have a crack in one edge. The dimensions are width b=35 and t=5.0mm, and the crack may be as long as a=7.0 mm. The member must resist a tension force of P=60KN. Determine
A) the safety against the brittle fracture.
B) the safety factor against fully plastic yielding.
C) the overall (controlling safety factor..