航空学报2025，Vol.46Issue(18)：113-122,10.DOI:10.7527/S1000-6893.2025.31719
一种新型整体与局部高阶层合梁模型
A new global-local higher order model for laminated composite beams
摘要
Abstract
To accurately calculate displacements and stresses of laminated composite beams under static loading,this paper develops a new model for laminated beams.The initial displacement field of the model includes two parts which are global and local displacements.Each layer of laminated beams can be depicted by local displacement un-known variables and shape functions.By applying the interlayer displacement and shear stress continuous conditions,as well as the free conditions for transverse shear stress on up-down surfaces of the laminated beam,the final dis-placement field of the model is obtained,expressed by six unknown displacement variables.Finally,through a classi-cal example,numerical results of the model show that this theory can accurately calculate the in-plane displacements and stresses of laminated beams under static loading conditions.Notably,the transverse shear stress can be directly obtained from constitutive equations without any additional processing,making the model convenient for engineering applications.关键词
层合梁/剪切应力连续条件/整体与局部高阶模型/本构方程/形函数Key words
laminated beams/shear stresses continuous condition/global-local higher order model/constitutive equations/shape function分类
航空航天引用本文复制引用
司俊岭,杨胜奇,张颖..一种新型整体与局部高阶层合梁模型[J].航空学报,2025,46(18):113-122,10.基金项目
大庆市指导性科技计划项目(ZD-2024-25) Daqing City Guided Science and Technology Plan Project(ZD-2024-25) （ZD-2024-25）
