期刊
ENGINEERING FRACTURE MECHANICS
卷 141, 期 -, 页码 19-43出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2015.05.007
关键词
Low cycle fatigue; Damage evolution; Cyclic deformation behaviour; Creep-fatigue interaction; Hysteresis stress strain energy
类别
资金
- EDF Energy
Fully-reversed, strain-controlled isothermal tests were conducted on the Type 316FR at 650 degrees C for the strain ranges of Delta epsilon = +/- 0.4%, +/- 0.8%, +/- 1.0% and +/- 1.2%. A constitutive model based on isotropic and nonlinear kinematic hardening rules was used to replicate numerically the cyclic structural behaviour of the material until stabilisation. Finally to demonstrate the damage initiation and the damage evolution, a hysteresis energy-based phenomenological model was implemented in a user subroutine combined with a creep damage model based on the time-fraction law to replicate the experimental results. (C) 2015 Elsevier Ltd. All rights reserved.
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