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Homework 2 Torsion And Bending The Flexure Formula Learning Goal To Apply The Flexure Formula To Beams Under Load An 1 (126.96 KiB) Viewed 45 times

<Homework 2 - Torsion and Bending The Flexure Formula Learning Goal: To apply the flexure formula to beams under load and find unknown stresses, moments, and forces. For straight members having a constant cross- section that is symmetrical with respect to an axis with a moment applied perpendicular to that axis, the maximum normal stress in the cross-section can be calculated using the flexure formula: Mc omax = I where M is the magnitude of the internal moment Figure W D L- W < W L W 1 of 3 Part B - Minimum Allowable Cross-Section d = The rod shown in the figure below is supported by smooth journal bearings at A and B that exert only vertical reactions on the shaft. (Figure 2) Determine the smallest allowable diameter of the rod, d, if x = 2.0 m, wo = 11.2 kN/m, and the maximum allowable bending stress is allow = 180 MPa. Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) Ti Submit HÅ Value Units con Part C - Absolute Maximum Bending Stress < ? 7 of 14 Find the absolute maximum bending stress in the beam shown in the figure below. (Figure 3) Review The beam has a square cross-section of 4.5 in. on each side, is 14 ft long, and the initial value of the distributed load is wo = 300 lb/ft. Express your answer to three significant figures. >