The Flexure Formula Learning Goal: To apply the flexure formula to beams under load and find unknown stresses, moments,

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The Flexure Formula Learning Goal To Apply The Flexure Formula To Beams Under Load And Find Unknown Stresses Moments 1 (123.07 KiB) Viewed 41 times

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 max= where M is the magnitude of the internal moment Figure W W < W L W 1 of 3 Part A - Moment Required to Produce a Given Stress Avec M =, omax = 327.33,55.9 Submit The cross-section of a wooden, built-up beam is shown below. The dimensions are L = 120 mm and w = 24 mm. (Figure 1) Determine the magnitude of the moment M that must be applied to the beam to create a compressive stress of OD = 40 MPa at point D. Also calculate the maximum stress developed in the beam. The moment M is applied in the vertical plane about the geometric center of the beam. Express your answers, separated by a comma, to three significant figures. ► View Available Hint(s) Previous Answers X Incorrect; Try Again; 3 attempts remaining Part B - Minimum Allowable Cross-Section ? 7 of 14 kN-m, MPa Review > The rod shown in the figure below is supported by smooth journal bearings at A and B that exert only vertical reactions on the