Mechanical model and removal mechanism of unidirectional carbon fibre-reinforced ceramic composites

doi:10.1016/j.ijmecsci.2020.105465

CORC > 金属研究所 > 中国科学院金属研究所

	Mechanical model and removal mechanism of unidirectional carbon fibre-reinforced ceramic composites
	Qu, Shuoshuo 1; Gong, Yadong 1; Yang, Yuying 1; Xu, Yunchao 1; Wang, Wenwen 2; Xin, Bo 1; Pang, Shengyang 3
刊名	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
	2020-05-01
卷号	173 页码:11
关键词	Unidirectional silicon carbide ceramic matrix (C-f/SiC) composites Grinding forces Mechanical model Removal mechanism
ISSN号	0020-7403
DOI	10.1016/j.ijmecsci.2020.105465
通讯作者	Gong, Yadong(gongyd@mail.neu.edu.cn)
英文摘要	Numerous 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.
资助项目	National Natural Science Foundation of China[51775100] ; Fundamental Research Funds for the Central Universities[N180306001]
WOS研究方向	Engineering ; Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000531024300004
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/138887]
专题	金属研究所_中国科学院金属研究所
通讯作者	Gong, Yadong
作者单位	1.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
推荐引用方式 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.