Full-field analysis of shear test on 3D orthogonal woven C/C composites

被引:31
作者
Qin, Lijun [1 ]
Zhang, Zhongwei [2 ]
Li, Xiaofeng [1 ]
Yang, Xiaoguang [2 ]
Feng, Zhihai [2 ]
Wang, Yang [1 ]
Miao, Hong [1 ]
He, Linghui [1 ]
Gong, Xinglong [1 ]
机构
[1] Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China
[2] Aerosp Res Inst Mat & Proc Technol, Beijing 100076, Peoples R China
基金
中国国家自然科学基金;
关键词
3-Dimensional reinforcement; Mechanical properties; Mechanical testing; Full-field measurements; DIGITAL-IMAGE CORRELATION; STRESS-STRAIN RESPONSE; TEXTILE COMPOSITES; CRACK-GROWTH; +/-45-DEGREES TENSILE; ELEVATED-TEMPERATURES; PROCESSING TECHNIQUES; MECHANICAL-PROPERTIES; IOSIPESCU SPECIMEN; RESIDUAL-STRESS;
D O I
10.1016/j.compositesa.2011.11.006
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work, the digital image correlation (DIC) technique was used as full-field measurement to analyze the shear properties of the 3D orthogonal woven C/C composites. Both the in-plane and the through-the-thickness specimens were tested and the macroscopic average strain was obtained. The composites were composed of lots of periodic units and the macroscopic average strain was dependent on these meso-structures. There were three regions within one unit, which showed different mesoscopic strain. The relationship between the shear test region and the macroscopic average strain was systematically studied. Finally, the accuracy of conventional strain-gauge rosette measurement was also discussed. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:310 / 316
页数:7
相关论文
共 56 条