摘要
采用有限元方法,计算复合材料圆角面外受载的应力分布,预测圆角区的分层载荷、部位与破坏载荷,研究不同铺设方式对圆角区应力分布的影响,并针对工程实际中圆角经常出现的制造缺陷,如分层和富树脂,研究了制造缺陷对复合材料圆角应力分布的影响。结果表明,采用三维体元的有限元建模方法对圆角区的分层载荷、部位和破坏载荷的预测可靠,可用于工程实际。
Based on the FEM method, calculated the stress distribution of the composite curved beam under out- of-plane load, studied the influence of the stress distribution of the composite curved beam used different lay-up, predicted the delamination location, delamination load and failure load. This paper focused on the manufacturing defects often appearing in the actual engineering, such as delamination and resin-richstudies the influence of the stress distribution of the composite curved beam using different lay-up. The results show that the method reliable predicated the delamination location, delamination load and failure load, can be used in engineering practice.
作者
侯瑞
HOU Rur(A VIC The First Aircraft Institute, Xi＇an 710089, China)
出处
《航空科学技术》
2016年第9期17-21,共5页
Aeronautical Science & Technology
关键词
复合材料圆角
面外受载
制造缺陷
分层载荷
composite curved beam
out-of-plane load
manufacturing defects
delamination load
