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Citation link: https://doi.org/10.26092/elib/2620

Publisher DOI: https://doi.org/10.1016/j.jeurceramsoc.2016.07.009
LI - Fatigue behavior and residual strength evolution of 2_5D.pdf
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Fatigue behavior and residual strength evolution of 2.5D C/C-SiC composites


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Authors: Li, Yang 
Xiao, Peng 
Luo, Heng 
Saint Martin Almeida, Renato  
Li, Zhuan 
Zhou, Wei 
Brückner, Alexander 
Reichert, Florian 
Langhof, Nico  
Krenkel, Walter 
Abstract: 
The residual tensile strength (RTS) evolution of a chemical vapor infiltration and liquid silicon infiltration based 2.5 dimensional reinforced C/C-SiC (2.5D C/C-SiC) composites after fatigue loadings has been investigated. The results show that the fatigue limit (106 cycles) of the 2.5D C/C-SiC composites reaches 58.2 MPa, which corresponds to 75% of the virgin static tensile strength (77.7 MPa). Moreover, an ultimate strength enhancement is observed after fatigue loading. The most pronounced RTS increases to 92.5 MPa when specimens are subjected to fatigue stress of 69.3 MPa for 105 cycles. The microstructural analysis indicates that RTS after cyclic loading is affected by the formation and propagation of cracks and interfacial degradation. Furthermore, a model proposed in this work can well evaluate the RTS of the composites in relation to the number of the applied fatigue cycles.
Keywords: C/C-SiC; Tensile fatigue; Mechanical evolution; Residual strength
Issue Date: 20-Aug-2016
Publisher: Elsevier {BV}
Project: Nonferrous Metal Oriented Advanced Structural Materials and Manufacturing Cooperative Innovation Center in Central South University and the National Natural Science Foundation of China 
Nat- ural Science Foundation of Hunan Province 
Science and Technology Planning Project of Hunan Province 
Grant number: 51575536
2015JJ3163
2015RS4016
Journal/Edited collection: Journal of the European Ceramic Society 
Start page: 3977
End page: 3985
Note: 16
Band: 36
Pages: 9
Type: Artikel/Aufsatz
ISSN: 09552219
Secondary publication: yes
Document version: Postprint
DOI: 10.26092/elib/2620
URN: urn:nbn:de:gbv:46-elib73861
Institution: Universität Bremen 
Faculty: Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04) 
Institute: Fachgebiet 17: Keramische Werkstoffe und Bauteile 
Appears in Collections:Forschungsdokumente

  

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