A previous paper by the authors (1) obtained expressions for the ratchetting rates of a Bree cylinder subjected to a cyclic internal pressure load together with a cyclic through-wall thermal gradient. The two cases of these loads varying in-phase and out-of-phase were considered. The work reported here considers the same loading situation, but obtains the plastic strain loop width in the alternating plasticity and ratchetting regimes. The result of this analysis is found to be in agreement with numerical studies.
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References
1.
NgH. W.MoretonD. N.‘Ratchetting rates for a Bree cylinder subjected to in-phase and out-of-phase loading’, J. Strain Analysis, 1986, 21, 1–8.
2.
BreeJ.‘Elastic-plastic behaviour of thin tubes subjected to internal pressure and intermittent high-heat fluxes with application to fast-nuclear-reactor fuel elements’, J. Strain Analysis, 1967, 2, 226–238.
3.
NgH. W.MoretonD. N.‘Bree diagrams for alternative loading sequences’, inEngineering approaches to high temperature design (Edited by Wilshire and Owen), 1983 (Pineridge Press, Swansea) pp. 279–312.
