Abstract
This paper deals with the continuum approach to the high-cycle fatigue model introduced by Ottosen et al. equipped with the damage rule of Lemaitre and Chaboche. The main result is that model parameters K and γ are not identifiable based on lifetime data. However, with observations from a fatigue development profile, it is possible to estimate also the γ-parameter. Moreover, the model gives the same lifetime for all γ⩾0. These results are elucidated with examples.
Original language | English |
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Article number | 106153 |
Number of pages | 7 |
Journal | International Journal of Fatigue |
Volume | 147 |
DOIs | |
Publication status | Published - Jun 2021 |
Publication type | A1 Journal article-refereed |
Keywords
- Continuum mechanics-based model
- Damage evolution
- High-cycle fatigue
- Lemaitre-Chaboche damage rule
Publication forum classification
- Publication forum level 2
ASJC Scopus subject areas
- Modelling and Simulation
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering