IMECH-IR  > 非线性力学国家重点实验室
Effects of the Longitudinal Surface Roughness on Fiber Pull-Out Behavior in Carbon Fiber-Reinforced Epoxy Resin Composites
Yao Y(姚寅); Chen SH(陈少华); Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Source PublicationJOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
2013-03
Volume80Issue:2Pages:021015/1-021015/13
ISSN0021-8936
AbstractSurface modifications are known as efficient technologies for advanced carbon fibers to achieve significant improvement of interface adhesion in composites, one of which is to increase the surface roughness in the fiber's longitudinal direction in practice. As a result, many microridges and grooves are produced on carbon fiber's surfaces. How does the surface roughness influence the carbon fiber's pull-out behavior? Are there any restrictions on the relation between the aspect ratio and surface roughness of fibers in order to obtain an optimal interface? Considering the real morphology on carbon fiber's surface, i.e., longitudinal roughness, an improved shear-lag theoretical model is developed in this paper in order to investigate the interface characteristics and fiber pull-out for carbon fiber-reinforced thermosetting epoxy resin (brittle) composites. Closed-form solutions to the carbon fiber stress are obtained as well as the analytical load-displacement relation during pullout, and the apparent interfacial shear strength (IFSS). It is found that the interfacial adhesion and the apparent IFSS are effectively strengthened and improved due to the surface roughness of carbon fibers. Under a given tensile load, an increasing roughness will result in a decreasing fiber stress in the debonded zone and a decreasing debonded length. Furthermore, it is interesting to find that, for a determined surface roughness, an optimal aspect ratio, about 30 similar to 45, of carbon fibers exists, at which the apparent IFSS could achieve the maximum. Comparison to the existing experiments shows that the theoretical model is feasible and reasonable to predict the experimental results, and the theoretical results should have an instructive significance for practical designs of carbon/epoxy composites.
KeywordCarbon/epoxy Composites Longitudinal Surface Roughness Shear-lag Model Fiber Pull-out Apparent Ifss
Subject Area复合材料力学
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000326175400028
Funding OrganizationNational Science Foundation of China [10972220, 11125211, 11021262]; Key Project [2012CB937500]
DepartmentLNM仿生材料与固体的微尺度力学
Classification一类/力学重要期刊
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47556
Collection非线性力学国家重点实验室
Corresponding AuthorChen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Yao Y,Chen SH,Chen, SH . Effects of the Longitudinal Surface Roughness on Fiber Pull-Out Behavior in Carbon Fiber-Reinforced Epoxy Resin Composites[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2013,80(2):021015/1-021015/13
APA 姚寅,陈少华,&Chen, SH .(2013).Effects of the Longitudinal Surface Roughness on Fiber Pull-Out Behavior in Carbon Fiber-Reinforced Epoxy Resin Composites.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,80(2),021015/1-021015/13.
MLA 姚寅,et al."Effects of the Longitudinal Surface Roughness on Fiber Pull-Out Behavior in Carbon Fiber-Reinforced Epoxy Resin Composites".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 80.2(2013):021015/1-021015/13.
Files in This Item: Download All
File Name/Size DocType Version Access License
IMCAS-J2013-311.pdf(1573KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[姚寅]'s Articles
[陈少华]'s Articles
[Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[姚寅]'s Articles
[陈少华]'s Articles
[Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[姚寅]'s Articles
[陈少华]'s Articles
[Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: IMCAS-J2013-311.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.