= = A 3 mm thick, 40 mm wide and 80 mm long plate (CG 1)...

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= = A 3 mm thick, 40 mm wide and 80 mm long plate (CG 1) is fabricated from high carbon steel with an SUT 540 MPa, Sy = 415 MPa and a machined finish. Assume 95% reliability, and operating temperature of 250 C. The plate is loaded axially with a force F, that varies as shown below: 80 mm Fo 0 3 mm 40 mm F: From 0 to Fo a) Sketch the o vs. t plot and find em and ea. Write them as a function of Fo. b) Sketch the appropriate material fatigue failure diagram. Be sure to include numerical values, units, and label axes. c) If it is desired to have a safety factor of 2, what is the loading F such that the plate has infinite life? Assume the loads increase proportionally. = = A 3 mm thick, 40 mm wide and 80 mm long plate (CG 1) is fabricated from high carbon steel with an SUT 540 MPa, Sy = 415 MPa and a machined finish. Assume 95% reliability, and operating temperature of 250 C. The plate is loaded axially with a force F, that varies as shown below: 80 mm Fo 0 3 mm 40 mm F: From 0 to Fo a) Sketch the o vs. t plot and find em and ea. Write them as a function of Fo. b) Sketch the appropriate material fatigue failure diagram. Be sure to include numerical values, units, and label axes. c) If it is desired to have a safety factor of 2, what is the loading F such that the plate has infinite life? Assume the loads increase proportionally.