摘要
以碳纤维增强环氧树脂基复合材料结构为研究对象,设计了含有预埋分层缺陷复合材料层合板的典型试件及压缩实验装置,采用试验与数值模拟相结合的方法,研究了分层缺陷位置、大小对结构压缩强度的影响。研究结果表明,分层缺陷的位置会改变层合板的分层形式,且小尺寸分层缺陷对于层合板的压缩强度几乎无影响。此结论可为复合材料结构应用于飞机结构的设计和制造提供依据。
With a earbnn fiber reinforced epoxy resin composite structure as an examph＇, this paper shnlies the influence of the delamitation flaw on the compressive strength. The typical test pieces with preset delamilation flaws and the related test faeilities were designed to test the compressive strength. The effects of the location and the size of the delamilation flaw are studied by numerical simulations combined with experiments. It is shown that the position of the delamitation flaw affects the delamitation form of the laminate and the small scale delamitation flaws do not affect the compressive strength. This conclusion is useful for the design and manufacture of the aircraft structures.
出处
《科技导报》
CAS
CSCD
北大核心
2013年第7期23-27,共5页
Science & Technology Review
关键词
分层缺陷
缺陷设计
压缩强度
数值模拟
破坏模式
delamitation flaw
flaw design
compressive strength
numerical simulation
failure mode
