Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension
The interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension is investigated by using a cohesive zone finite element model. It is found that the surface crack density has a significant effect on the initiation and propagation of interfacial delamination....
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Elsevier BV North-Holland
2014
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/6506 |
| _version_ | 1848745094569525248 |
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| author | Zhu, W. Yang, L. Guo, J. Zhou, Y. Lu, Chunsheng |
| author_facet | Zhu, W. Yang, L. Guo, J. Zhou, Y. Lu, Chunsheng |
| author_sort | Zhu, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension is investigated by using a cohesive zone finite element model. It is found that the surface crack density has a significant effect on the initiation and propagation of interfacial delamination. The interfacial delamination length decreases with increase of the surface crack density. The influence of ceramic coating thickness and interfacial adhesion parameters on surface cracking and interfacial delamination is discussed. It is shown that the saturated crack densities decrease with increase of the ceramic coating thickness and interfacial delamination length, and the critical surface crack density without interfacial delamination decreases as the interfacial adhesion energy increases. The results imply that the larger the surface crack density and interfacial adhesion energy are, the less the probability of interfacial delamination. |
| first_indexed | 2025-11-14T06:11:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-6506 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:11:54Z |
| publishDate | 2014 |
| publisher | Elsevier BV North-Holland |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-65062017-09-13T14:41:02Z Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension Zhu, W. Yang, L. Guo, J. Zhou, Y. Lu, Chunsheng Cohesive zone model Thermal barrier coatings Surface cracking Interfacial delamination The interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension is investigated by using a cohesive zone finite element model. It is found that the surface crack density has a significant effect on the initiation and propagation of interfacial delamination. The interfacial delamination length decreases with increase of the surface crack density. The influence of ceramic coating thickness and interfacial adhesion parameters on surface cracking and interfacial delamination is discussed. It is shown that the saturated crack densities decrease with increase of the ceramic coating thickness and interfacial delamination length, and the critical surface crack density without interfacial delamination decreases as the interfacial adhesion energy increases. The results imply that the larger the surface crack density and interfacial adhesion energy are, the less the probability of interfacial delamination. 2014 Journal Article http://hdl.handle.net/20.500.11937/6506 10.1016/j.apsusc.2014.07.142 Elsevier BV North-Holland restricted |
| spellingShingle | Cohesive zone model Thermal barrier coatings Surface cracking Interfacial delamination Zhu, W. Yang, L. Guo, J. Zhou, Y. Lu, Chunsheng Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension |
| title | Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension |
| title_full | Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension |
| title_fullStr | Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension |
| title_full_unstemmed | Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension |
| title_short | Numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension |
| title_sort | numerical study on interaction of surface cracking and interfacial delamination in thermal barrier coatings under tension |
| topic | Cohesive zone model Thermal barrier coatings Surface cracking Interfacial delamination |
| url | http://hdl.handle.net/20.500.11937/6506 |