Statistical Modeling of Fatigue Crack Growth

Ignacio Guerra; Tarun Goswami

doi:10.1515/JMBM.2002.13.5-6.315

Statistical Modeling of Fatigue Crack Growth

Ignacio Guerra, Tarun Goswami

Wright State University

Research output: Contribution to journal › Article › peer-review

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.

Original language	American English
Journal	Journal of the Mechanical Behavior of Materials
Volume	13
DOIs	https://doi.org/10.1515/JMBM.2002.13.5-6.315
State	Published - Jan 1 2002

Keywords

Mechanical engineering and machinery
TJ1-1570
crack growth
fatigue

Disciplines

Biomedical Engineering and Bioengineering
Engineering
Industrial Engineering
Operations Research, Systems Engineering and Industrial Engineering

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title = "Statistical Modeling of Fatigue Crack Growth",

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.",

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AU - Goswami, Tarun

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AB - 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.

KW - Mechanical engineering and machinery

KW - TJ1-1570

KW - crack growth

KW - fatigue

UR - https://corescholar.libraries.wright.edu/bie/147

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DO - 10.1515/JMBM.2002.13.5-6.315

M3 - Article

VL - 13

JO - Journal of the Mechanical Behavior of Materials

JF - Journal of the Mechanical Behavior of Materials

ER -

Statistical Modeling of Fatigue Crack Growth

Abstract

Keywords

Disciplines

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