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[en] The relaxation of stress which occurs when low amplitude alternating strains are superimposed on constant mean total strains is studied in this paper. Experiments were carried out on a 0.16 per cent carbon steel and an AISI 347 stainless steel at 4500C and 6500C respectively in which the decrease of axial mean stress was measured as a function of time. When even a low amplitude alternating strain was applied, the rate of stress relaxation was observed to increase. Analytical predictions based on creep and static relaxation data show fairly good agreement with experiments in the period corresponding to transient creep. (author)
Source
Institution of Mechanical Engineers, London (UK); p. 251.1-251.9; ISBN 0852983042; 
; 1975; Mechanical Engineering Pubs; London; International conference on creep and fatigue in elevated temperature applications; Philadelphia, USA; 23 Sep 1973
; 1975; Mechanical Engineering Pubs; London; International conference on creep and fatigue in elevated temperature applications; Philadelphia, USA; 23 Sep 1973