NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Determination of surfaces of constant inelastic strain rate at elevated temperatureAn experimental effort to perform special exploratory multiaxial deformation tests on tubular specimens of type 316 stainless steel at 650 C (1200 F) is described. One test specimen was subjected to a time-independent torsional shear strain test history, and surfaces of constant inelastic strain rate (SCISRs) in an axial/torsional stress space were measured at various predetermined points during the test. A second specimen was subjected to a 14-week time-dependent (creep-recovery-creep periods) torsional shear stress histogram SCISRs determinations made at 17 points during the test. The tests were conducted in a high temperature, computer controlled axial/torsional test facility using high-temperature multiaxial extensometer. The effort was successful, and for the first time the existence of surfaces of constant inelastic strain rate was experimentally demonstrated.
Document ID
19890003539
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Battiste, R. L. (Oak Ridge National Lab. TN, United States)
Ball, S. J. (Oak Ridge National Lab. TN, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1986
Publication Information
Publication: NASA, Lewis Research Center, Turbine Engine Hot Section Technology 1986
Subject Category
Structural Mechanics
Accession Number
89N12910
Funding Number(s)
CONTRACT_GRANT: DE-AC05-84OR-21400
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available