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Method for estimating crack-extension resistance curve from residual strength dataA method is presented for estimating the crack extension resistance curve (R curve) from residual strength (maximum load against initial crack length) data for precracked fracture specimens. The method allows additional information to be inferred from simple test results, and that information is used to estimate the failure loads of more complicated structures. Numerical differentiation of the residual strength data is required, and the problems that it may present are discussed.
Document ID
19810002909
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Orange, T. W. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
November 1, 1980
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TP-1753
E-439
Accession Number
81N11417
Funding Number(s)
PROJECT: RTOP 505-33
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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