NDLI: SIFs for Radial Cracks in Annular Discs Under Internal and External Shrinkage Pressure and Constant Angular Velocity

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Sakhaee-Pour, A. Gowhari-Anaraki, A. R. Hardy, S. J.
Copyright Year	2007
Abstract	Finite element method has been implemented to predict stress intensity factors (SIFs) for radial cracks in annular discs under constant angular velocity. Effects of internal and external uniform pressure on the SIFs have also been considered. Linear elastic fracture mechanics finite element analyses have been performed and results are presented in the form of crack configuration factors for a wide range of components and crack geometry parameters. These parameters are chosen to be representative of typical practical situations. The extensive range of crack configuration factors obtained from the analyses is then used to develop equivalent prediction equations via a statistical multiple non-linear regression model. The accuracy of this model is measured using a multiple coefficient of determination, R2, where 0 ≤ R2 ≤ 1. This coefficient is found to be greater than or equal to 0.98 for all cases considered in this study, demonstrating the quality of the model fit to the data. These equations for the SIFs enable designers to predict fatigue life of the components easily.
Starting Page	653
Ending Page	659
Page Count	7
File Format	PDF
ISBN	0791843017
DOI	10.1115/IMECE2007-42861
e-ISBN	0791838129
Volume Number	Volume 7: Engineering Education and Professional Development
Conference Proceedings	ASME 2007 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2007-11-11
Publisher Place	Seattle, Washington, USA
Access Restriction	Subscribed
Subject Keyword	Geometry Fatigue life Regression models Fracture mechanics Disks Shrinkage (materials) Fracture (materials) Finite element analysis Finite element methods Pressure Stress
Content Type	Text
Resource Type	Article

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