tating steel shaft has endurance limit of Se = 343 MPa and ultimate strength of Sut = 627 MPa.A section of the shaft with dimensions is shown in the figure (D=38.5 mm, d = 35 mm, r = 3.5 mm).The section is subjected to a completely reversed bending moment of 192 Nm, accompanied by atorque alternate from 0 to 203 Nm. Calculate the fatigue factor for an infinite life using the Goodmancriterion. Orientation: Use Excel spreadsheets to calculate the theoretical stress concentration factorsand the notch sensitivities parameters.Bending momentTorque203 Nm-r = 3.5 mm192 Nm=38.5 mm= 35 mm0 Nm.-192 Nm.pulsating cyclereversed cycle

The question depicts a rotating steel shaft with an endurance limit of Se = 343 MPa and ultimate…

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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 3.3.11P: A circular tube of aluminum is subjected to torsion by torques T applied at the ends (see figure)....

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Similar questions

A propeller shaft of solid circular cross section and diameter d is spliced by a collar of the same material (see figure). The collar is securely bonded to both parts of the shaft. What should be the minimum outer diameter dyof the collar in order that the splice can transmit the same power as the solid shaft?
What is the maximum power that can be delivered by a hollow propeller shaft (outside diameter 50 mm, inside diameter 40 mm, and shear modulus of elasticity 80 GPa) turning at 600 rpm if the allowable shear stress is 100 MPa and the allowable rate of twist is 3.0°/m?
A long, thin-walled tapered tube AB with a circular cross section (see figure) is subjected to a torque T. The tube has length L and constant wall thickness t. The diameter to the median lines of the cross sections at the ends A and B are dAand dB, respectively. Derive the following formula for the angle of twist of the tube: Hint: If the angle of taper is small, you may obtain approximate results by applying the formulas for a thin-walled prismatic tube to a differential element of the tapered tube and then integrating along the axis of the tube.
A solid circular bar of diameter d = 50 mm (see figure) is twisted in a testing maching until the applied torque reaches the value T = 500 N ·. At this value of torque, a strain gage oriented at 45º to the axis of the bar gives a reading e = 339 × 10-6. What is the shear modulus G of the material?
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Compare the angle of twist 1 for a thin-walled circular tube (see figure) calculated from the approximate theory for thin-walled bars with the angle of twist 2 calculated from the exact theory of torsion for circular bars, Express the ratio 12terms of the non-dimensional ratio ß = r/t. Calculate the ratio of angles of twist for ß = 5, 10, and 20. What conclusion about the accuracy of the approximate theory do you draw from these results?
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