预氧化Cf/SiC陶瓷基复合材料及其构件的抗疲劳特性研究

Yangfang Deng; Xiaomeng Fan; Gen Zhang; Changbo Wu; Yan Zhong; Aijie He; Xiaowei Yin

doi:10.11896/j.issn.1005-023X.2018.04.025

预氧化C_f/SiC陶瓷基复合材料及其构件的抗疲劳特性研究

Translated title of the contribution: Anti-fatigue Performance Study of Pre-oxidized 2D-C_f/SiC Ceramic Matrix Composites

Yangfang Deng, Xiaomeng Fan, Gen Zhang, Changbo Wu, Yan Zhong, Aijie He, Xiaowei Yin

School of Materials Sience and Engineering

AECC Sichuan Gas Turbine Establishment

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In this paper, the two-dimensional (2D) carbon fiber reinforced silicon carbide matrix composites (C_f/SiC) with complex shape were prepared by the online integration technique, and then the vibration fatigue test was carried out to investigate the vibration fatigue life and damage models after the pre-oxidation. The work demonstrated the delamination damage mode at different excitation acceleration, which was caused by the pin fracture, and the delamination joint is weak part of C_f/SiC. Through the analysis of ANSYS stress and microstructure, it can be concluded that, in the vibration test, cracks propagated easily in the interlayer matrix due to the lack of fiber toughening mechanism, and then the stress was concentrated on the pin with the failure of interlayer matrix. So the composites failed by the pin fracture and the interlayer delamination were damaged.

Translated title of the contribution	Anti-fatigue Performance Study of Pre-oxidized 2D-C_f/SiC Ceramic Matrix Composites
Original language	Chinese (Traditional)
Pages (from-to)	631-635
Number of pages	5
Journal	Cailiao Daobao/Materials Reports
Volume	32
Issue number	2
DOIs	https://doi.org/10.11896/j.issn.1005-023X.2018.04.025
State	Published - 25 Feb 2018

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title = "预氧化Cf/SiC陶瓷基复合材料及其构件的抗疲劳特性研究",

abstract = "In this paper, the two-dimensional (2D) carbon fiber reinforced silicon carbide matrix composites (Cf/SiC) with complex shape were prepared by the online integration technique, and then the vibration fatigue test was carried out to investigate the vibration fatigue life and damage models after the pre-oxidation. The work demonstrated the delamination damage mode at different excitation acceleration, which was caused by the pin fracture, and the delamination joint is weak part of Cf/SiC. Through the analysis of ANSYS stress and microstructure, it can be concluded that, in the vibration test, cracks propagated easily in the interlayer matrix due to the lack of fiber toughening mechanism, and then the stress was concentrated on the pin with the failure of interlayer matrix. So the composites failed by the pin fracture and the interlayer delamination were damaged.",

keywords = "Carbon fiber, Ceramic matrix composites, Damage mode, Vibration fatigue",

author = "Yangfang Deng and Xiaomeng Fan and Gen Zhang and Changbo Wu and Yan Zhong and Aijie He and Xiaowei Yin",

year = "2018",

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doi = "10.11896/j.issn.1005-023X.2018.04.025",

language = "繁体中文",

volume = "32",

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T1 - 预氧化Cf/SiC陶瓷基复合材料及其构件的抗疲劳特性研究

AU - Deng, Yangfang

AU - Fan, Xiaomeng

AU - Zhang, Gen

AU - Wu, Changbo

AU - Zhong, Yan

AU - He, Aijie

AU - Yin, Xiaowei

PY - 2018/2/25

Y1 - 2018/2/25

N2 - In this paper, the two-dimensional (2D) carbon fiber reinforced silicon carbide matrix composites (Cf/SiC) with complex shape were prepared by the online integration technique, and then the vibration fatigue test was carried out to investigate the vibration fatigue life and damage models after the pre-oxidation. The work demonstrated the delamination damage mode at different excitation acceleration, which was caused by the pin fracture, and the delamination joint is weak part of Cf/SiC. Through the analysis of ANSYS stress and microstructure, it can be concluded that, in the vibration test, cracks propagated easily in the interlayer matrix due to the lack of fiber toughening mechanism, and then the stress was concentrated on the pin with the failure of interlayer matrix. So the composites failed by the pin fracture and the interlayer delamination were damaged.

AB - In this paper, the two-dimensional (2D) carbon fiber reinforced silicon carbide matrix composites (Cf/SiC) with complex shape were prepared by the online integration technique, and then the vibration fatigue test was carried out to investigate the vibration fatigue life and damage models after the pre-oxidation. The work demonstrated the delamination damage mode at different excitation acceleration, which was caused by the pin fracture, and the delamination joint is weak part of Cf/SiC. Through the analysis of ANSYS stress and microstructure, it can be concluded that, in the vibration test, cracks propagated easily in the interlayer matrix due to the lack of fiber toughening mechanism, and then the stress was concentrated on the pin with the failure of interlayer matrix. So the composites failed by the pin fracture and the interlayer delamination were damaged.

KW - Carbon fiber

KW - Ceramic matrix composites

KW - Damage mode

KW - Vibration fatigue

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U2 - 10.11896/j.issn.1005-023X.2018.04.025

DO - 10.11896/j.issn.1005-023X.2018.04.025

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SN - 1005-023X

VL - 32

SP - 631

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JO - Cailiao Daobao/Materials Reports

JF - Cailiao Daobao/Materials Reports

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预氧化C_f/SiC陶瓷基复合材料及其构件的抗疲劳特性研究

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