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Sharply notch cylindrical tension specimen for screening plane-strain fracture toughness. I - Influence of fundamental testing variables on notch strength. II Applications in aluminum alloy quality assurance of fracture toughnessA description is presented of studies which have been conducted to establish an improved technology base for a use of the sharply notched cylindrical specimen in quality assurance tests of aluminum alloy products. The results are presented of an investigation of fundamental variables associated with specimen preparation and testing, taking into account the influence of the notch root radius, the eccentricity of loading, the specimen diameter, and the notch depth on the sharp notch strength. Attention is given to the statistical procedures which are necessary to establish correlations between the sharp notch strength and the plane-strain fracture toughness for high-strength aluminum alloys.
Document ID
19770068731
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Jones, M. H.
(NASA Lewis Research Center Cleveland, OH, United States)
Bubsey, R. T.
(NASA Lewis Research Center Cleveland, OH, United States)
Brown, W. F., Jr.
(NASA Lewis Research Center Fracture Branch, Cleveland, Ohio, United States)
Bucci, R. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Collis, S. F.
(NASA Lewis Research Center Cleveland, OH, United States)
Kohm, R. F.
(NASA Lewis Research Center Cleveland, OH, United States)
Kaufman, J. G.
(Aluminum Company of America, Alcoa Laboratories, Alcoa Center Pa., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Metallic Materials
Meeting Information
Meeting: Symposium on Developments in fracture mechanics test methods standardization
Location: St. Louis, MO
Start Date: May 4, 1976
Accession Number
77A51583
Distribution Limits
Public
Copyright
Other

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