Fatigue properties of SiC/SiC composites under various loading modes

Shuhei Nogami; Takashi Nozawa; Daichi Kawai; Wenhai Guan; Akira Hasegawa

doi:10.1080/15361055.2017.1333822

Fatigue properties of SiC/SiC composites under various loading modes

Shuhei Nogami, Takashi Nozawa, Daichi Kawai, Wenhai Guan, Akira Hasegawa

ENG - Quantum Science and Energy Engineering

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

4 Citations (Scopus)

Abstract

Because fatigue resistance is one of the most important issues for the blanket structural materials of the fusion reactor, the fatigue damage formation processes of the advanced SiC/SiC composite (Tyranno SA 3rd/CVI-SiC composite with SiC/C multilayer interphase) for fusion reactor applications were investigated. The fatigue tests of the SiC/SiC composite were successfully performed up to 10⁵ cycles with no significant technical issues by using a small specimen test technique developed under the IFMIF/EVEDA. Based on the evaluation of the modulus change during the fatigue tests, the tensile loading was clarified to be a dominant factor for the degradation of the SiC/SiC composite.

Original language	English
Pages (from-to)	398-403
Number of pages	6
Journal	Fusion Science and Technology
Volume	72
Issue number	3
DOIs	https://doi.org/10.1080/15361055.2017.1333822
Publication status	Published - 2017 Oct

Keywords

Fatigue
Loading mode
Modulus
SiC/SiC composite
Small specimen

ASJC Scopus subject areas

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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AU - Nogami, Shuhei

AU - Nozawa, Takashi

AU - Kawai, Daichi

AU - Guan, Wenhai

AU - Hasegawa, Akira

PY - 2017/10

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AB - Because fatigue resistance is one of the most important issues for the blanket structural materials of the fusion reactor, the fatigue damage formation processes of the advanced SiC/SiC composite (Tyranno SA 3rd/CVI-SiC composite with SiC/C multilayer interphase) for fusion reactor applications were investigated. The fatigue tests of the SiC/SiC composite were successfully performed up to 105 cycles with no significant technical issues by using a small specimen test technique developed under the IFMIF/EVEDA. Based on the evaluation of the modulus change during the fatigue tests, the tensile loading was clarified to be a dominant factor for the degradation of the SiC/SiC composite.

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KW - Loading mode

KW - Modulus

KW - SiC/SiC composite

KW - Small specimen

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Fatigue properties of SiC/SiC composites under various loading modes

Abstract

Keywords

ASJC Scopus subject areas

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