Wide-Band Time History Fatigue Analysis

5 Wide-Band Time History Fatigue Analysis [Pg.472]

Knowing the stress amplitudes the lives Ni, N2 and A3 can be inferred from the Basquin Eq. (5.22) [Pg.472]

In a 1-sec time interval, the sine waves at 1, 10 and 20 Hz represent 1 cycle, 10 cycles and 20 cycles, respectively. Then, using the Miner s rule the total linear damage calculation for this time interval is [Pg.473]

Which correspond to 34 years life, three times the life calculated with both Miner s rule and Oritz approach. [Pg.474]

Schijve, J. Fatigue of Structures and Materials. Kluwer Academic Publishers, NY (2004) [Pg.474]

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