University of Illinois Urbana-Champaign

Cyclic stress behavior of a 286 alloy for conditions of controlled strain

Ross, A.S.; Morrow, JoDean

Permalink

https://hdl.handle.net/2142/112292

Description

Title
Cyclic stress behavior of a 286 alloy for conditions of controlled strain
Author(s)
  • Ross, A.S.
  • Morrow, JoDean
Issue Date
1958-09
Keyword(s)
  • Cyclic Stress
  • Controlled Strain
Abstract
When an axial fatigue specimen is subjected to repeated strain cycling about a fixed mean strain value, the average or mean stress decreases with the number of strain cycles. This cycle-dependent stress relaxation is analogous to the relaxation or decay of macro-residual stresses in a member subjected to fatigue loading. To explore this type of material behavior nearly 50 tubular fatigue specimens of A-286 alloy steel have been axially tested under conditions of controlled strain, and the cycle-dependent relaxation of mean stress measured. Fatigue data for initial means stresses are also reported. It was found that in the case of A-286 alloy most of the relaxation occurred early in the fatigue life, especially during the first ten cycles. In this respect the cyclic behavior of A-286 was found to be substantially different from that of SAE 4340 which was investigated earlier by Morrow and Sinclair.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 563
  • 1971-8588
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/112292
Sponsor(s)/Grant Number(s)
General Electric Company Evendale Plant Lab 58/09
Copyright and License Information
Copyright 1958 Board of Trustees of the University of Illinois

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Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.