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Plane-stress fracture of compact and notch-bend specimensThin-gaged or high toughness materials containing cracks usually fail in a ductile manner with nominal failure stresses approaching the ultimate strength of the material. For such materials, a two-parameter fracture criterion was developed. An equation which related the linear elastic stress-intensity factor, elastic nominal stress, and two material parameters has previously been derived and has been used as a fracture criterion for surface- and through-cracked specimens under tensile loading. In the present paper the two-parameter fracture criterion was rederived in a more general form and was extended to compact and notch-bend fracture specimens. A close correlation was found between experimental and calculated failure stresses.
Document ID
19770057026
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Newman, J. C., Jr.
(NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1976
Subject Category
Structural Mechanics
Accession Number
77A39878
Distribution Limits
Public
Copyright
Other

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