5. A straight steel rod of circular cross-section and length 72 cm rotates about an axis through oneend perpendicular to its length. Calculate the speed of rotation that will produce a maximumtensile stress of 55.85 MPa in the rod and the elongation of the rod at this speed. The specificweight of steel is 7833.413 kg/m³ and Young's modulus is 16.67 x 10¹01N/m².[Ans. 2190 rpm, 0.018 cm]

Given data, Length of the steel rod, L = 0.72 m Maximum tensile stress, σt,max=55.85 MPa Specific…

A straight steel rod of circular cross-section and length 72 cm rotates about an axis through one end perpendicular to its length. Calculate the speed of rotation that will produce a maximum ensile stress of 55.85 MPa in the rod and the elongation of the rod at this speed. The specific weight of steel is 7833.413 kg/m³ and Young's modulus is 16.67 x 10¹0 N/m².

A straight steel rod of circular cross-section and length 72 cm rotates about an axis through one end perpendicular to its length. Calculate the speed of rotation that will produce a maximum ensile stress of 55.85 MPa in the rod and the elongation of the rod at this speed. The specific weight of steel is 7833.413 kg/m³ and Young's modulus is 16.67 x 10¹0 N/m².

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 3.2.6P: A circular aluminum tube subjected to pure torsion by torques T(sec figure) has an outer radius...

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