7. A cylindrical steel bar is subjected to repeated compression-tension stress cycling along its axis. The mean stress is zero (0). If the maximum tensile load applied to the bar is 15,000 N, calculate the minimum allowable bar diameter (in mm) to ensure that fatique failure will not occur. Assume a Safety Factor of 3. Show all work 500- 450 400 S 350 300 250 10 10 10° 10 10 S (MPa)

7. A cylindrical steel bar is subjected to repeated compression-tension stress cycling along its axis. The mean stress is zero (0). If the maximum tensile load applied to the bar is 15,000 N, calculate the minimum allowable bar diameter (in mm) to ensure that fatique failure will not occur. Assume a Safety Factor of 3. Show all work 500- 450 400 S 350 300 250 10 10 10° 10 10 S (MPa)

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.7.1P: A high-strength steel bar used in a large crane has a diameter d = 2.00 in. (sec figure). The steel...

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