A 18-mm diameter, mirror-polished steel shaft is subjected to a bending loading consisting of a 75 N-m average bending moment and a 95 N-m alternating bending moment. Its tensile strength is 800 MPa and fatigue stress concentration factor at a critical location on the shaft is estimated to be 2.1. Will the shaft have an infinite lifetime at room temperature with a 50% reliability

Answer rating: 100% (QA)

To determine if the steel shaft will have an infinite lifetime at room temperature with a 50 reliability we need to consider its fatigue strength and ... View the full answer