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| Failure Analysis Method of Ceramic Matrix Composite Joint Structures |
| Received:August 31, 2019 Revised:November 14, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.01.011 |
| KeyWord:C/SiC composite joint structures failure analysis proportion method progressive damage method |
| Author | Institution |
| LIU Bao-rui |
Key Laboratory of Reliability and Environment Engineering Technology, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| HOU Chuan-tao |
Key Laboratory of Reliability and Environment Engineering Technology, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| ZHAO Li-bin |
School of Astronautics, Beihang University, Beijing , China |
| WU Jian-guo |
Key Laboratory of Reliability and Environment Engineering Technology, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| GAO Kui-yin |
Key Laboratory of Reliability and Environment Engineering Technology, Beijing Institute of Structure and Environment Engineering, Beijing , China |
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| Abstract: |
| In order to analyze the stength of ceramic matrix composite strultures.For the failure analysis of C/SiC composite joint structures, two methods of proportion method and progressive damage method were developed. A UMAT finite element analysis subroutine was developed based on Abaqus software platform. The applicability of several different failure criteria was analyzed with experimental data. Based on the improved three-dimensional Hashin failure criterion, the failure behavior of a typical C/SiC composite joint structure was calculated. The failure mode of the structure was consistent with the experimental results, and the prediction error of the failure load was less than 10%. The validity of the two methods is verified by comparing with the experimental results. The research method can provide technical support for the strength evaluation of the composite hot structures for hypersonic aircraft and re-entry space vehicle. |
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