Engineering, 04.04.2020 11:10 mandilynn22

A 20 mm diameter cylindrical rod fabricated from a 2014-T6 alloy is subjected to repeated tension-compression load cycling along its axis. The magnitudes of the maximum tensile and compressive stresses during cycling are 600 MPa and 100 MPa, respectively. Estimate the fatigue lifetime of this cylindrical rod (in years), if it is cycled between these stress states sinusoidally with a frequency of 0.01 Hz. You may assume that the curves represent a 100% chance of failure.

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A 20 mm diameter cylindrical rod fabricated from a 2014-T6 alloy is subjected to repeated tension-co...