Article
Statistical Modeling of Fatigue Crack Growth
Journal of the Mechanical Behavior of Materials
Document Type
Article
Publication Date
1-1-2002
Disciplines
Abstract
The objective of this research is to fit normal and lognormal distributions to fatigue crack growth rate (da/dN) data and present the data in terms of cumulative frequency distribution (f (x)) and a variant of da/dN and mode I stress intensity factor range (ΔΚ), z. The probability density functions (F(da/dN)) were also plotted for the data. The data was compiled from open literature, conducted on a hot section turbine disk material Inconel 718 under a North Atlantic Treaty Organization (NATO) project, through the Advisory Group on Aerospace Research and Development (AGARD). Incomel 718 was tested at 650°C utilizing various specimen geometries. The f(da/dN) and F(da/dN) were plotted with respect to ΔΚ for 33 test specimens.
DOI
10.1515/JMBM.2002.13.5-6.315
Citation Information
Ignacio Guerra and Tarun Goswami. "Statistical Modeling of Fatigue Crack Growth" Journal of the Mechanical Behavior of Materials Vol. 13 Iss. 5-6 (2002) p. 315 - 331 ISSN: 0334-8938 Available at: http://works.bepress.com/tarun-goswami/129/
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