Stress ConcentrationsThe problems for Section 5.13 are to be solved considering the stress-concentration factors. Problem 5.13-1The beams shown in the figure are subjected to bending moments M 2100 lb-in. Each beam has a rectangular cross section with height h 1.5 in. and width b0.375 in.(perpendicular to the plane of the figure).(a) For the beam with a hole at midheight, determine the maximum stresses for hole diameters d 0.25, 0.50, 0.75, and 1.00 in. (b) For the beam with two identical notches (inside height h1 1.25 in.), determine the maximum stresses for notch radii R 0.05, 0.10, 0.15, and 0.20 in. Solution 5.13-1SECTION 5.13Stress Concentrations371(b)(a)MMMMdhhh12RM2100 lb-in.h1.5 in.b0.375 in.(a) BEAM WITH A HOLEEq. (5-57):(1)Eq. (5-56):(2)
This is the end of the preview.
access the rest of the document.