Fatigue behavior and residual strength evolution of 2.5D C/C-SiC composites
Fatigue behavior and residual strength evolution of 2.5D C/C-SiC composites
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2.5D C/C-SiC 复合材料的疲劳行为和残余强度演变
DOI:
10.1016/j.jeurceramsoc.2016.07.009
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发表时间:
2016-12
影响因子:
5.7
通讯作者:
Krenkel Walter
中科院分区:
文献类型:
--
作者:
Li Yang;Xiao Peng;Luo Heng;Almeida Renato S. M.;Li Zhuan;Zhou Wei;Brueckner Alex;er;Reichert Florian;Langhof Nico;Krenkel Walter
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 (106cycles) 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 105cycles. 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.
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DOI:
10.1520/stp27977s
发表时间:
1977
期刊:
ASTM special technical publications
影响因子:
--
作者:
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通讯作者:
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影响因子:
9.1
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通讯作者:
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影响因子:
3.9
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发表时间:
2005-03
影响因子:
2.1
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通讯作者:
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DOI:
10.1002/9781118832998.ch23
发表时间:
2014-10
期刊:
--
影响因子:
--
作者:
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通讯作者:
W. Krenkel;J. Thébault