Finite Element Analysis of Self-Healing and Damage Processes in Alumina/SiC Composite Ceramics
Abstract
:1. Introduction
2. Damage-Healing Constitutive Model
2.1. Stress–Strain Relation
2.2. Typical Response of the Damage-Healing Constitutive Model
3. Results and Discussion
3.1. FE Model and Analysis
- Introduction of a prescribed pre-crack by the Vickers indentation method
- Self-healing under prescribed temperature and oxygen partial pressure conditions
- Strength evaluation by the three-point bending test after a specified self-healing time
3.2. Comparison with the Experimental Result of the Self-Healing Behavior
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
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E (MPa) | ν | Gf (MPa/mm) | k | |
---|---|---|---|---|
3.54 × 105 | 0.21 | 3.31 × 10−2 | 2.14 × 10−3 | 10 |
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Nakamura, M.; Takeo, K.; Osada, T.; Ozaki, S. Finite Element Analysis of Self-Healing and Damage Processes in Alumina/SiC Composite Ceramics. Technologies 2017, 5, 40. https://doi.org/10.3390/technologies5030040
Nakamura M, Takeo K, Osada T, Ozaki S. Finite Element Analysis of Self-Healing and Damage Processes in Alumina/SiC Composite Ceramics. Technologies. 2017; 5(3):40. https://doi.org/10.3390/technologies5030040
Chicago/Turabian StyleNakamura, Marika, Kyohei Takeo, Toshio Osada, and Shingo Ozaki. 2017. "Finite Element Analysis of Self-Healing and Damage Processes in Alumina/SiC Composite Ceramics" Technologies 5, no. 3: 40. https://doi.org/10.3390/technologies5030040