Problem 4 (xx points) A notched component has a theoretical stress concentration factor, K,, of 3. The component is load

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Problem 4 Xx Points A Notched Component Has A Theoretical Stress Concentration Factor K Of 3 The Component Is Load 1 (40.92 KiB) Viewed 17 times

Problem 4 (xx points) A notched component has a theoretical stress concentration factor, K,, of 3. The component is loaded to cause a nominal stress. S. of 200 MPa. Determine the resulting notch root stress, o, and strain, e. The component is then unloaded to a nominal stress of zero. Determine the residual stress at the notch root. What is the fatigue life of the component if it is subjected to a cyclic nominal stress of 0 to 200 MPa (R = 0)? Use a Neuber analysis and the Morrow mean stress-strain life relationship [Eq. (2.49)] for this problem. The strain-life properties for this material are E = 100 GPa o; = 1000 MPa b = -0.08 € = 1.0 c = -0.60