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Experimental verification of the Neuber relation at room and elevated temperaturesThe accuracy of the Neuber equation at room temperature and 1,200 F as experimentally determined under cyclic load conditions with hold times. All strains were measured with an interferometric technique at both the local and remote regions of notched specimens. At room temperature, strains were obtained for the initial response at one load level and for cyclically stable conditions at four load levels. Stresses in notched members were simulated by subjecting smooth specimens to he same strains as were recorded on the notched specimen. Local stress-strain response was then predicted with excellent accuracy by subjecting a smooth specimen to limits established by the Neuber equation. Data at 1,200 F were obtained with the same experimental techniques but only in the cyclically stable conditions. The Neuber prediction at this temperature gave relatively accurate results in terms of predicting stress and strain points.
Document ID
19830010850
Acquisition Source
Legacy CDMS
Document Type
Thesis/Dissertation
Authors
Lucas, L. J. (Michigan State Univ. East Lansing, MI, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1982
Subject Category
Structural Mechanics
Report/Patent Number
NAS 1.26:167967
NASA-CR-167967
Accession Number
83N19121
Funding Number(s)
CONTRACT_GRANT: NAG3-51
PROJECT: RTOP 505-33-22
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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