复合材料层合板连接件应力分析  

Stress analysis of connectors of composite laminate

作　　者：耿丽松 焦帅克 王泽峰[1] 郑甲宏[1] GENG Lisong;JIAO Shuaike;WANG Zefeng;ZHENG Jiahong

机构地区：[1]中国飞行试验研究院飞机所,陕西西安710089

出　　处：《现代机械》2022年第1期35-39,共5页Modern Machinery

摘　　要：复合材料广泛应用于飞机结构中,各部件间的连接主要通过机械紧固件实现。紧固件连接时需要在复合材料上开孔,会导致孔附近的应力集中,同时会破坏纤维的连续性,这便削弱了复合材料结构的承载能力,直接影响飞行安全与使用寿命。基于有限元软件ANSYS,应用参数化设计语言APDL,考虑接触非线性影响,建立了单钉单剪连接件的三维模型,计算连接件的变形及应力分布,为后续复合材料连接件强度分析提供支撑。Composite materials are widely used in aircraft structures, and the connection between components are mainly achieved through mechanical fasteners.When connecting, holes need to be made in the composite material, which will cause stress concentration near the holes and discontinuity of the fibers.This will weaken the load-bearing capacity of the composite material structure and directly affect the safety and working life of the aircraft.Based on the finite element software ANSYS,using the parametric design language APDL,and considering the effects of contact nonlinearity, three-dimensional models of single-nail single-shear connectors are established.The deformation and stress distribution of the connectors are calculated, which can provide support for the strength analysis of composite material connectors.

关 键 词：复合材料层合板 机械连接 应力分布 有限元计算 ANSYS 

分 类 号：V215[航空宇航科学与技术—航空宇航推进理论与工程]