Title
Characterization of fatigue dynamics under deterministic and stochastic excitation
Document Type
Conference Proceeding
Date of Original Version
12-1-2012
Abstract
Estimating and tracking dynamics of crack growth is essential for fatigue failure prediction. A new experimental system coupling structural and crack growth dynamics was used to show fatigue damage accumulation is different under chaotic and stochastic loading, even when both excitations have similar spectral and statistical signatures. Furthermore, conventional rain-flow counting method considerably overestimates damage in case of chaotic forcing. Important nonlinear loading characteristics are identified to guide the new fatigue model development. Copyright © 2012 by ASME.
Publication Title, e.g., Journal
Proceedings of the ASME Design Engineering Technical Conference
Volume
6
Citation/Publisher Attribution
Nguyen, Son Hai, Mike Falco, Ming Liu, and David Chelidze. "Characterization of fatigue dynamics under deterministic and stochastic excitation." Proceedings of the ASME Design Engineering Technical Conference 6, (2012): 265-270. doi: 10.1115/DETC2012-71228.