Experimental and numerical investigation of a composite structure with frame and skin

作     者：李传政 XU Shuyan DONG Jihong LIU Bo ZHANG Yaoyu ZHENG Fusheng LI Chuanzheng;XU Shuyan;DONG Jihong;LIU Bo;ZHANG Yaoyu;ZHENG Fusheng

作者机构：Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033P.R.China University of Chinese Academy of SciencesBeijing 100049P.R.China School of Mechanical and Aerospace EngineeringJilin UniversityChangchun 130025P.R.China 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2023年第29卷第1期

页      面：22-30页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 

基　　金：Supported by the National Natural Science Foundation of China(No.51805510) Science and Technology Development Plan Project of Jilin Province(No.20200201294JC) 

主　　题：composite tensile test hybrid bonded/bolted joint bolted connection finite element analysis 

摘      要：A composite structure with frame and skin based on cabin structure in a large space telescope is studied in this *** frame is composed of longitudinal and transverse beams with hybrid bonded/bolted joints,and the skin is connected to the frame by *** tests are conducted on the structure by a set of test *** is observed that residual deformation occurs in the first test of the structure,which is attributed to the relative sliding between the skin and frame because of bolt-hole *** high tightening torque and the increased number of the skin-frame bolts contribute to the high stiffness of the structure.A finite element model(FEM)of this composite structure is established,and the simulation model is verified by the experimental *** FEM is contrastively analyzed with different frame joints,and it is found that adhesive joining in the hybrid bonded/bolted joints enhances the stiffness of the structure *** that adhesive plays a leading role in the stiffness of the hybrid joints,Tie contact in FEM is proposed to simulate bonded or hybrid joints when studying the stiffness performance of undamaged structure.