Effects of the Longitudinal Surface Roughness on Fiber Pull-Out Behavior in Carbon Fiber-Reinforced Epoxy Resin Composites
文献类型：期刊论文
| 作者 | Yao Y(姚寅) ; Chen SH(陈少华)
|
| 刊名 | JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
 |
| 出版日期 | 2013-03 |
| 卷号 | 80期号:2页码:021015/1-021015/13 |
| 通讯作者邮箱 | chenshaohua72@hotmail.com |
| 关键词 | carbon/epoxy composites longitudinal surface roughness shear-lag model fiber pull-out apparent IFSS |
| ISSN号 | 0021-8936 |
| 产权排序 | [Yao, Yin; Chen, Shaohua] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 中文摘要 | Surface 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. |
| 学科主题 | 复合材料力学 |
| 分类号 | 一类/力学重要期刊 |
| 收录类别 | SCI ; EI |
| 资助信息 | National Science Foundation of China [10972220, 11125211, 11021262]; Key Project [2012CB937500] |
| 原文出处 | http://dx.doi.org/10.1115/1.4007440 |
| 语种 | 英语 |
| WOS记录号 | WOS:000326175400028 |
| 公开日期 | 2013-12-04 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47556]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yao Y,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.(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. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。