5 A rotating step shaft is loaded as shown, where the forces F, and FB are constant at 600 lbf and 300 lbf, respectively, and the torque T alternates from 0 to 1800 lbf • in. The shaft is to be considered simply supported at points O and C, and is made of AISI 1045 CD steel with a fully corrected endurance limit of S. = 40 kpsi. Let K; = 2.1 and Kf = 1.7. For a design factor of 2.5 determine the minimal acceptable diameter of section BC using the

5 A rotating step shaft is loaded as shown, where the forces F, and FB are constant at 600 lbf and 300 lbf, respectively, and the torque T alternates from 0 to 1800 lbf • in. The shaft is to be considered simply supported at points O and C, and is made of AISI 1045 CD steel with a fully corrected endurance limit of S. = 40 kpsi. Let K; = 2.1 and Kf = 1.7. For a design factor of 2.5 determine the minimal acceptable diameter of section BC using the

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter3: Torsion

Section: Chapter Questions

Problem 3.7.8P: A tubular shaft being designed for use on a construction site must transmit 120 kW at 1,75 Hz, The...

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7-5 A rotating step shaft is loaded as shown, where the forces FA and F3 are constant at 600 lbf and 300 lbf. respectively, and the torque T alternates from 0 to 1800 lbf - in. The shaft is to be considered simply supported at points O and C, and is made of AISI 1045 CD steel with a fully corrected endurance limit of S₂ = 40 kpsi. Let Kf = 2.1 and K = 1.7. For a design factor of 2.5 determine the minimal acceptable diameter of section BC using the (a) DE-Gerber criterion. (b) DE-Goodman criterion. n 6 in FA = 600 lbf 6 in FB = 300 lbf 6 in T, n Page 413
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