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A Single-Expression Formula for Inverting Strain-Life and Stress-Strain RelationshipsStarting with the basic fatigue lift formula, an inversion formula is derived. The inversion formula is valid over the entire life range of engineering interest for all materials examined. Conformity between the two equations is extremely close, suitable for all engineering problems. The approach used to invert the life relation is also suitable for the inversion of other formulas involving the sum of two power-law terms.
Document ID
19810014958
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Manson, S. S. (Case Western Reserve Univ. Cleveland, OH, United States)
Muralidharan, U. (Case Western Reserve Univ. Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
May 1, 1981
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-165347
Accession Number
81N23491
Funding Number(s)
CONTRACT_GRANT: NAG3-46
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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