航空材料学报2011，Vol.31Issue(6)：87-91,5.DOI:10.3969/j.issn.1005-5053.2011.6.015
不同等级损伤复合材料层压板的压缩失效行为
Compression Failure Behavior of Composite Laminates with Low-velocity Impact Damage
刘杰 1范金娟 2王云英1
作者信息
- 1. 北京航空材料研究院中国航空工业失效分析中心,北京100095
- 2. 南昌航空大学材料科学与工程学院,南昌330063
- 折叠
摘要
Abstract
The effect of visually-undetected and detected damages on the compression failure behavior of CF3052/5224 composite laminates after impact was studied. Low-velocity impact and compression tests were carried out on the composite laminates. The failure modes of the composite laminates with the two type damages were compared. And the knee point in the relationship curve of the impacted pit depth with impaction energy variation was analyzed. The results show that the main failure mode of the composite laminates with visually-undetected damage is crack and delamination of the matrix. However, the composite laminates with visually-detected damage, besides crack and delaminating of the matrix, fiber fracture is seen. The micro buckling feature caused by impacting exists at the side fracture surface of the impaction damage central region, and the brim of the impaction damage region is not affected. The failure mode of the composite laminates with damage is a shearing and delaminating failure, the same as the undamaged composite laminates.关键词
低速冲击/复合材料层压板/压缩失效/微屈曲Key words
low-velocity impact/composite laminates/compression failure/micro buckling分类
通用工业技术引用本文复制引用
刘杰,范金娟,王云英..不同等级损伤复合材料层压板的压缩失效行为[J].航空材料学报,2011,31(6):87-91,5.
