An as-forged-condition solid 100- mm diameter circular shaft made of of AISI 1045 CD steel (use Shigley’s tables) is subjected to simultaneous in-phase cyclic axial load , bending moment , and torque , where min = −75 kN, max = 425 kN, min = −35 kN · m, max = 145 kN · m, min = −10 kN · m, and max = 15 kN · m. The shaft is operating at the room temperature, and a design reliability of 50% is desired. What is the safety factor against fatigue failure for infinite life? If infinite life is not achievable, estimate the number of cycles to failure. What is the safety factor against localized yielding?