Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method
The real-time testing and quantitative assessment of damage evolution in thermal barrier coatings (TBCs) is desirable, but still intractable, especially at elevated temperature. In this paper, the fracture process of TBCs subjected to cyclic heating and cooling is monitored using an acoustic emissio...
| Main Authors: | , , |
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| Format: | Journal Article |
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Elsevier Ltd
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/23115 |
| _version_ | 1848751060230864896 |
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| author | Yang, L. Zhou, Y. Lu, Chungsheng |
| author_facet | Yang, L. Zhou, Y. Lu, Chungsheng |
| author_sort | Yang, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The real-time testing and quantitative assessment of damage evolution in thermal barrier coatings (TBCs) is desirable, but still intractable, especially at elevated temperature. In this paper, the fracture process of TBCs subjected to cyclic heating and cooling is monitored using an acoustic emission method. Based on the wavelet analysis of acoustic emission signals, damage modes in TBCs are discriminated. The results show that, due to thermal stress, it is preferential for vertical cracks in the heating stage and interface cracks in the cooling stage. The surface crack density and interface crack length are calculated to obtain the quantitative correlation of damage evolution in TBCs and acoustic emission parameters. The rupture time of TBCs can be predicted by the statistical analysis of acoustic emission signals. |
| first_indexed | 2025-11-14T07:46:43Z |
| format | Journal Article |
| id | curtin-20.500.11937-23115 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:46:43Z |
| publishDate | 2011 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-231152017-09-13T15:59:55Z Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method Yang, L. Zhou, Y. Lu, Chungsheng Thermal Barrier Coatings - Acoustic Emission - Damage Mode - Damage Evolution - Rupture Time Prediction The real-time testing and quantitative assessment of damage evolution in thermal barrier coatings (TBCs) is desirable, but still intractable, especially at elevated temperature. In this paper, the fracture process of TBCs subjected to cyclic heating and cooling is monitored using an acoustic emission method. Based on the wavelet analysis of acoustic emission signals, damage modes in TBCs are discriminated. The results show that, due to thermal stress, it is preferential for vertical cracks in the heating stage and interface cracks in the cooling stage. The surface crack density and interface crack length are calculated to obtain the quantitative correlation of damage evolution in TBCs and acoustic emission parameters. The rupture time of TBCs can be predicted by the statistical analysis of acoustic emission signals. 2011 Journal Article http://hdl.handle.net/20.500.11937/23115 10.1016/j.actamat.2011.06.018 Elsevier Ltd fulltext |
| spellingShingle | Thermal Barrier Coatings - Acoustic Emission - Damage Mode - Damage Evolution - Rupture Time Prediction Yang, L. Zhou, Y. Lu, Chungsheng Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method |
| title | Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method |
| title_full | Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method |
| title_fullStr | Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method |
| title_full_unstemmed | Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method |
| title_short | Damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method |
| title_sort | damage evolution and rupture time prediction in thermal barrier coatings subjected to cyclic heating and cooling: an acoustic emission method |
| topic | Thermal Barrier Coatings - Acoustic Emission - Damage Mode - Damage Evolution - Rupture Time Prediction |
| url | http://hdl.handle.net/20.500.11937/23115 |