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Question: a rectangular cross section and is cyclically loaded with a...

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a rectangular cross section and is cyclically loaded with a ernating between P-2500 lb. and P-3500 lb. at room Given: The bar shown has tension force alt tem perature. It is planned to make the bar out of AISI 1045 hot-rolled steel. Assume a notch sensitivity of g-0.8 Find the following: a) b) Draw a plot (to scale) below of alternating stress vs. mean stress. Identify Sut, Sy, and c) Add a data point to your plot for the given loading conditions and calculate the factor d) If the loading is revised to P 5000 lb and Pimin 1500 lb, estimate the fatigue life estimate the endurance limit of the bar if the notch radius, r, is 0.25. Se on each axis and illustrate the Goodman line on this plot. of safety for fatigue relative to the Goodman line (in number of cycles).
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