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A micro-crack initiation life simulation method by improving the Tanaka-Mura's model of slip behavior.
- Source :
-
International Journal of Fatigue . Apr2021, Vol. 145, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- • Micro-crack initiation considering varied slip irreversibility and hardening. • A slip irreversibility quantification model to load and microstructure are proposed. • Simulation examples in FCC material and comparison with the related experiment. • Discussion about how the slip behavior affect micro-crack initiation life. A micro-crack initiation simulation model was proposed with varied slip irreversibility and slip hardening (VSISH), by improving the Tanaka-Mura's model. A power law to relate the slip irreversibility parameter to the load and the microstructure information was proposed. The shear strain range in Tanaka-Mura's model was re-derived for introducing slip hardening behavior. Several microstructure examples in three-dimensions were given and the evaluated mean fatigue life has a minimum error less than 3.3% compared with the experimental data. It was demonstrated that the constant-slip-irreversibility strategy and an existing irreversibility model were specific cases of our model. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HUMAN behavior models
*FATIGUE life
*HIGH cycle fatigue
Subjects
Details
- Language :
- English
- ISSN :
- 01421123
- Volume :
- 145
- Database :
- Academic Search Index
- Journal :
- International Journal of Fatigue
- Publication Type :
- Academic Journal
- Accession number :
- 148776531
- Full Text :
- https://doi.org/10.1016/j.ijfatigue.2020.106108