2. Please estimate the number of cycles to failure of a steel specimen under tensile fatigue loading with the following parameters. The R ratio is 3, mean stress 200 MPa, yield strength 450 MPa, ultimate tensile strength 560 MPa, Young’s modulus 200 GPa, KIC = 140 MPa . Assume the initial crack length is 0.1 mm. 2. Please estimate the number of cycles to failure of a steel specimen under tensile fatigueloading with the following parameters. The R ratio is 3, mean stress 200 MPa, yield strength 450MPa, ultimate tensile strength 560 MPa, Young's modulus 200 GPa, Kic= 140 MPa/m. Assumethe initial crack length is 0.1 mm.

Sm = 200 MPaSu = 560 MPa R value = 3

Answered: 2. Please estimate the number of cycles…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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2. Please estimate the number of cycles to failure of a steel specimen under tensile fatigue loading with the following parameters. The R ratio is 3, mean stress 200 MPa, yield strength 450 MPa, ultimate tensile strength 560 MPa, Young’s modulus 200 GPa, KIC = 140 MPa . Assume the initial crack length is 0.1 mm.

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