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Mechanical model and removal mechanism of unidirectional carbon fibre-reinforced ceramic composites
Qu, Shuoshuo1; Gong, Yadong1; Yang, Yuying1; Xu, Yunchao1; Wang, Wenwen2; Xin, Bo1; Pang, Shengyang3
Corresponding AuthorGong, Yadong(gongyd@mail.neu.edu.cn)
2020-05-01
Source PublicationINTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
ISSN0020-7403
Volume173Pages:11
AbstractNumerous scholars have researched the influences of grinding parameters on the surface quality and grinding forces of carbon fibre-reinforced silicon carbide ceramic matrix (C-f/SiC) composites. Nevertheless, the relevant mechanical model and removal mechanism have not been investigated from a microscale perspective. To develop a mechanical model, the area of formation of the grinding chips should be analysed in detail and discussed. The supporting conditions and debonding depth are critical to the grinding forces. To validate the reliability of the mechanical model, experiments with the same grinding parameters were performed. The differences between the theoretical and experimental results were small, which indicated that the mechanical model was accurate and reasonable. Based on the theoretical analyses and experimental results, the material removal mechanism was explored in detail. Based on the topographies of the grinding chips and surfaces, the failure processes of the fibre and matrix due to the forward motion of the abrasive grains were analysed. As the grinding depth increased, the evaluation indexes of the debonding depth, grinding forces and grinding chips gradually increased. Moreover, the increasing proportions of fibre pullout and fibre outcrop indicated that the quality of the grinding surface decreased. Based on the research findings, the debonding depths, grinding forces, grinding chips and surface topographies of unidirectional C-f/SiC composites can be determined, which is expected to significantly improve the machining ability of C-f/SiC composites.
KeywordUnidirectional silicon carbide ceramic matrix (C-f/SiC) composites Grinding forces Mechanical model Removal mechanism
Funding OrganizationNational Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI10.1016/j.ijmecsci.2020.105465
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51775100] ; Fundamental Research Funds for the Central Universities[N180306001]
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
WOS IDWOS:000531024300004
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138888
Collection中国科学院金属研究所
Corresponding AuthorGong, Yadong
Affiliation1.Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China
2.CHENGWU ZHIZHUAN, Chenwu 274200, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Wenhua Rd 72, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Qu, Shuoshuo,Gong, Yadong,Yang, Yuying,et al. Mechanical model and removal mechanism of unidirectional carbon fibre-reinforced ceramic composites[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2020,173:11.
APA Qu, Shuoshuo.,Gong, Yadong.,Yang, Yuying.,Xu, Yunchao.,Wang, Wenwen.,...&Pang, Shengyang.(2020).Mechanical model and removal mechanism of unidirectional carbon fibre-reinforced ceramic composites.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,173,11.
MLA Qu, Shuoshuo,et al."Mechanical model and removal mechanism of unidirectional carbon fibre-reinforced ceramic composites".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 173(2020):11.
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