| C/SiC复合材料残余应力的电火花小孔法测定研究 |
| |
| 引用本文： | 于坤,张长瑞,曹英斌,刘荣军.C/SiC复合材料残余应力的电火花小孔法测定研究[J].国防科技大学学报,2009,31(2):31-35. |
| |
| 作者姓名： | 于坤 张长瑞 曹英斌 刘荣军 |
| |
| 作者单位： | 国防科技大学,航天与材料工程学院,湖南,长沙,410073 |
| |
| 摘 要： | 进行了C/SiC复合材料残余应力的小孔法表征.基于现有小孔法的不足以及材料的较好电导率,提出了电火花打孔法的残余应力测量方法,建立了相应的残余应力测量流程.进行了不同平整表面样品的残余应力测量.结果表明电火花打孔法具有较好的区分性,也表明C/SiC复合材料具有较小的本征残余应力和机加工应力,这说明:C/SiC复合材料作为反射镜材料具有很好的面形稳定性的优势.
|
| 关 键 词： | 电火花方法 残余应力测量 小孔法 C/SiC复合材料 |
| 收稿时间： | 2008/12/23 0:00:00 |
A Study of Residual Stresses on Short Carbon Fiber Enhanced Silicon Carbide Composites |
| |
| YU Kun,ZHANG Changrui,CAO Yingbin and LIU Rongjun.A Study of Residual Stresses on Short Carbon Fiber Enhanced Silicon Carbide Composites[J].Journal of National University of Defense Technology,2009,31(2):31-35. |
| |
| Authors: | YU Kun ZHANG Changrui CAO Yingbin and LIU Rongjun |
| |
| Institution: | College of Aerospace and Material Engineering;National Univ.of Defense Technology;Changsha 410073;China |
| |
| Abstract: | Feasibility of hole-drilling method for the measurement of residual stresses in short carbon fiber enhanced silicon carbide(C/SiC) composites was studied.Based on the disadvantage of conventional hole-drilling method and good electric conductance of high-hardness C/SiC composite,electric sparkle method(ESM),an alternative method,was presented and proved suitable.Then an experimental procedures for residual stresses of C/SiC composites were established.Finally the established ESM method was used for the meas... |
| |
| Keywords: | electric sparkle method measurement of residual stresses hole-drilling method C/SiC composites |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《国防科技大学学报》浏览原始摘要信息 |
| 点击此处可从《国防科技大学学报》下载免费的PDF全文 |
