复合材料科学与工程Issue(10)：105-113,9.DOI:10.19936/j.cnki.2096-8000.20251028.016
帽形桁条排布结构和胶接作用对碳纤维复合材料蒙皮固化变形影响的研究
The investigation of composite material envelope curing deformation affected by layout structure and cementing
摘要
Abstract
The design of stringer arrangement structure not only affects the mechanical properties of aircraft en-velope,but also affects the curing deformation during forming.Therefore,it is very important to study the influence of stringer arrangement structure and cementing effect on aircraft envelope forming.In this paper,curing degree,glass transition temperature,internal stress,and strain changing over time have been analyzed based on simulation,more over comparing the influence of hat section stringer layout structure and cementing effect on residual internal stress and curing deformation of composite skin and verified by experiment.The results indicate that,the stress in-creases rapidly as composite material envelope cured.It will exceed 49.1 MPa after demoding,and further extend to 51.7 MPa while the cementing effect is taken into account.The curing deformation along the length and width change slightly,range from 0.19～0.31 mm,primarily influenced by cure shrinkage.However,the warping deform-ation of the envelope is influenced by the combined effect of mold bonding and stringer cementing,and the stringer cementing having a more significant impact.As the cementing area decreases,the warping deformation decreases from 2.50 mm to 1.19 mm,and the deformation distribution becomes more uniform.By contrast,the middle string-er has a greater impact on warping deformation and more pronounced stress concentration than outer stringer.关键词
复合材料蒙皮/固化变形/帽形桁条/有限元分析Key words
composite material envelope/curing deformation/hat section stringer/finite element analysis引用本文复制引用
高翔,胡建冬,谢小林,李文博,王子强,安林..帽形桁条排布结构和胶接作用对碳纤维复合材料蒙皮固化变形影响的研究[J].复合材料科学与工程,2025,(10):105-113,9.基金项目
江西省重点研发计划项目(20224BBE51049) （20224BBE51049）
