| 含冲击损伤复合材料层压板压缩破坏机制试验研究 |
| |
| 引用本文： | 杨宇,孙侠生,杨胜春,沈真,柴亚南.含冲击损伤复合材料层压板压缩破坏机制试验研究[J].复合材料学报,2012,29(3):197-202. |
| |
| 作者姓名： | 杨宇 孙侠生 杨胜春 沈真 柴亚南 |
| |
| 作者单位： | 1. 西北工业大学 航空学院, 西安 710072;
2. 中国飞机强度研究所, 西安 710065 |
| |
| 摘 要： | 为了研究含冲击损伤复合材料层压板的压缩破坏机制, 通过前后表面超声C扫描获得分层损伤在层压板内的分布情况, 使用应变片获取层压板两面的应变场, 采用声发射观察层压板压缩破坏过程。研究发现: 冲击分层损伤在厚度方向上的非对称分布引起层压板内部出现严重的应力集中, 致使纤维断裂并最终导致层压板整体破坏; 导致含冲击损伤层压板压缩破坏的主要原因为纤维断裂而非分层扩展。
|
| 关 键 词： | 冲击损伤 破坏机制 分层开裂 纤维断裂 无损检测 |
| 收稿时间： | 2011-06-08 |
Experimental study on compressive failure mechanism of low- velocity- impact- damaged composite laminates |
| |
| YANG Yu,SUN Xiasheng ,YANG Shengchun,SHEN Zhen,CHAI Yanan.Experimental study on compressive failure mechanism of low- velocity- impact- damaged composite laminates[J].Acta Materiae Compositae Sinica,2012,29(3):197-202. |
| |
| Authors: | YANG Yu SUN Xiasheng YANG Shengchun SHEN Zhen CHAI Yanan |
| |
| Affiliation: | 1. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
2. China Aircraft Strength Research Institute, Xi'an 710065, China |
| |
| Abstract: | The compressive failure mechanism of low-velocity-impacted composite laminates was studied by means of delamination configuration obtained by ultrasonic C-scan, strain field by strain gauges, and damage process by acoustic emission. The results showed that: because of unsymmetrical delamination distribution within the laminate, serious stress concentration appeared leading subsequent fiber breakage and triggering catastrophic failure of the laminate. The key factor in compressive failure mechanism of impacted composite laminates was fiber breakage rather than delamination propagation. |
| |
| Keywords: | impact damage damage mechanism delamination fiber breakage nondestructive inspection |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《复合材料学报》浏览原始摘要信息 |
|
点击此处可从《复合材料学报》下载全文 |
|
