Q2. A machine component experiences cyclic loading with a maximum stress of A MPa* and a minimum stress of B MPa (see individual data for values of A and B). (i) Calculate the mean stress Sm and the stress amplitude Sa (ii) An S-N curve for the material used in the component is described by the following equation: S = 450N, -0.159 Neglecting the influence of mean stress, calculate the number of cycles to cause failure, Nf, given the stress amplitude calculated above (i.e. Q2(i)). You may assume that the S-N curve applies to the mean stress calculated for the component's stress-cycle.

Q2. A machine component experiences cyclic loading with a maximum stress of A MPa* and a minimum stress of B MPa (see individual data for values of A and B). (i) Calculate the mean stress Sm and the stress amplitude Sa (ii) An S-N curve for the material used in the component is described by the following equation: S = 450N, -0.159 Neglecting the influence of mean stress, calculate the number of cycles to cause failure, Nf, given the stress amplitude calculated above (i.e. Q2(i)). You may assume that the S-N curve applies to the mean stress calculated for the component's stress-cycle.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.2.12P: Solve the preceding problem if the diameter is 480 mm, the pressure is 20 MPa, the yield stress in...

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