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作者:

Li, Yihang (Li, Yihang.) | Ma, Yong (Ma, Yong.) | Guan, Tianhao (Guan, Tianhao.) | Wang, Zhen (Wang, Zhen.) | Zhang, Chao (Zhang, Chao.) | Suo, Tao (Suo, Tao.)

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EI Scopus SCIE

摘要:

A sophisticated meso-scale model is developed based on finite element method to study the tensile failure behavior of 2D-SiCf/SiC. To this end, a thoroughgoing characterization was carried out using SEM and micro-CT to obtain the microstructural parameters, and a progressive damage model related to matrix cracking was proposed for fiber tows to depict the matrix brittleness, an essential feature of ceramic matrix composites. Thereby, a sophisticated model comprehensively incorporating void defects, layer shifts and the damage induced by matrix cracking was established. Elaborate experimental tests including digital image correlation, acoustic emission (AE) and high-speed observation were synthetically conducted to validate this model, and results indicated that this model could provide an accurate prediction. Especially, micro and meso-scale damage modes were identified and the damage process was thoroughly analyzed by combing this model and AE technology. The numerical studies were then implemented to evaluate the effect of stacking mode and porosity.

关键词:

Failure mechanism Defects Ceramic-matrix composites (CMCs) Finite element analysis (FEA)

作者机构:

  • [ 1 ] [Li, Yihang]Northwestern Polytech Univ, Inst Extreme Mech, Sch Aeronaut, Xian 710072, Shaanxi, Peoples R China
  • [ 2 ] [Ma, Yong]Northwestern Polytech Univ, Inst Extreme Mech, Sch Aeronaut, Xian 710072, Shaanxi, Peoples R China
  • [ 3 ] [Guan, Tianhao]Northwestern Polytech Univ, Inst Extreme Mech, Sch Aeronaut, Xian 710072, Shaanxi, Peoples R China
  • [ 4 ] [Zhang, Chao]Northwestern Polytech Univ, Inst Extreme Mech, Sch Aeronaut, Xian 710072, Shaanxi, Peoples R China
  • [ 5 ] [Suo, Tao]Northwestern Polytech Univ, Inst Extreme Mech, Sch Aeronaut, Xian 710072, Shaanxi, Peoples R China
  • [ 6 ] [Suo, Tao]Northwestern Polytech Univ, Shaanxi Key Lab Impact Dynam & Engn Applicat IDEA, Xian 710072, Shaanxi, Peoples R China
  • [ 7 ] [Wang, Zhen]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
  • [ 8 ] [Zhang, Chao]Youyi West Rd, Xian 710072, Shaanxi, Peoples R China
  • [ 9 ] [Suo, Tao]Youyi West Rd, Xian 710072, Shaanxi, Peoples R China

通讯作者信息:

  • [Zhang, Chao]Youyi West Rd, Xian 710072, Shaanxi, Peoples R China;;[Suo, Tao]Youyi West Rd, Xian 710072, Shaanxi, Peoples R China;;

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来源 :

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING

ISSN: 1359-835X

年份: 2024

卷: 176

8 . 7 0 0

JCR@2022

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SCOPUS被引频次: 15

ESI高被引论文在榜: 0 展开所有

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