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Stress-intensity factor equations for cracks in three-dimensional finite bodiesEmpirical stress intensity factor equations are presented for embedded elliptical cracks, semi-elliptical surface cracks, quarter-elliptical corner cracks, semi-elliptical surface cracks at a hole, and quarter-elliptical corner cracks at a hole in finite plates. The plates were subjected to remote tensile loading. Equations give stress intensity factors as a function of parametric angle, crack depth, crack length, plate thickness, and where applicable, hole radius. The stress intensity factors used to develop the equations were obtained from three dimensional finite element analyses of these crack configurations.
Document ID
19810023035
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Newman, J. C., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Raju, I. S.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
August 1, 1981
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TM-83200
Meeting Information
Meeting: ASTM Natl. Symp. on Fracture Mech.,
Location: Los Angeles, CA
Country: United States
Start Date: June 30, 1981
End Date: July 2, 1981
Accession Number
81N31578
Funding Number(s)
PROJECT: RTOP 505-33-23-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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