航天器环境工程2018，Vol.35Issue(3)：228-232,5.DOI:10.3969/j.issn.1673-1379.2018.03.005
基于三维有限元模型的弹翼胶接结构胶层应力分析
Stress analysis of composite repair structure of aircraft wing based on three-dimensional finite element model
陈涛 1郝建滨1
作者信息
- 1. 中国人民解放军91851部队,葫芦岛 125001
- 折叠
摘要
Abstract
At present, the simulation of the adhesive layer in the composite adhesive repair structure mostly adopts a two-dimentional planar element, which cannot effectively simulate the true stress state of the adhesive layer under the action of the external load. A three-dimensional finite element model is established for analyzing the three-dimensional stress state of adhesively bonded composite repair structures. The adhesive shear stress is calculated under uniaxial tensile loading condition, and compared with the Hart-Smith analytical solutions to validate the effectiveness of the present model. It is indicated that the finite element computation results correlate very well with those of the analytical solutions. The distributions of the adhesive shear stress and the peel stress, as well as the mechanism of the failure mode of the adhesive, are analyzed based on the finite element model. The present model and the analytical approaches may help the investigation of the load-bearing capacity of the patched structure and improve the design accordingly.关键词
复合材料修理结构/三维有限元模型/胶层剪应力/剥离应力/失效机理Key words
composite repair structure/three-dimensional finite element model/adhesive shear stress/peel stress/failure mechanism分类
通用工业技术引用本文复制引用
陈涛,郝建滨..基于三维有限元模型的弹翼胶接结构胶层应力分析[J].航天器环境工程,2018,35(3):228-232,5.
