复合材料科学与工程Issue(5)：22-30,9.DOI:10.19936/j.cnki.2096-8000.20250528.003
拉伸载荷作用下玻璃纤维复合材料-铝合金双钉混合连接接头失效行为数值研究
Numerical study of failure behavior of glass fiber composite material and aluminum alloy double-bolt hybrid joint under tensile loading
摘要
Abstract
The design of the joint between composite and metal material is a key critical problem in aircraft structural design.It is of great significance to deeply study the mechanical properties and failure modes of composite and metal mechanical connection structures to improve the safety and reliability of aircraft composite and metal hy-brid structures.Therefore,this paper established a numerical failure prediction model for the double-bolt hybrid joint of orthogonal braided GFRP laminates and an aluminum alloy plate subjected to tensile loading based on the fi-nite element method.The related finite element simulation analysis and model tests were carried out.The comparison of numerical and experimental results show that the presented numerical model has high accuracy.On this basis,combined with the experimental and numerical results,the differences on failure modes and load bearing capacities between the pure bolted joint and the bonded-bolted hybrid joint under tensile loading were investigated.It is found that the adhesive layer of bonded-bolted hybrid joint can reduce the stress concentration near the bolt hole and im-prove the stiffness of the whole connection structure.Moreover,the load bearing capacity of bonded-bolted hybrid joint increases by 27.8%compared to pure bolted joint.The research results can provide some useful references for the design of composite-metal connection structure.关键词
GFRP/铝合金/接头/有限元仿真/失效模式/承载能力Key words
GFRP/aluminum alloy/joint/finite element simulation/failure mode/load bearing capacity引用本文复制引用
杨晓,贺娜,肖鹏,朱强,蔡伟,胡海晓,曹东风..拉伸载荷作用下玻璃纤维复合材料-铝合金双钉混合连接接头失效行为数值研究[J].复合材料科学与工程,2025,(5):22-30,9.基金项目
国家自然科学基金(52273080) （52273080）
