湿热环境下玻/碳纤维混杂复合材料层合梁的结构阻尼  

Research on Structural Damping of Glass/Carbon Fiber Hybrid Composite Laminated Beam Under Hydrothermal Environment

作　　者：孙双双[1] 王洋 SUN Shuangshuang;WANG Yang(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《青岛科技大学学报(自然科学版)》2025年第2期89-97,共9页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：山东省自然科学基金项目(ZR2014AL011);山东省高等学校科技计划项目(J13LB08);青岛市科技发展计划项目(13-1-4-150-jch).

摘　　要：在考虑湿热应力及湿热环境对复合材料力学性能影响的基础上,按照能量耗散原理及宏观应变能法建立了湿热环境下玻/碳纤维层间混杂复合材料层合梁的阻尼预测模型,并利用MATLAB软件编写了玻/碳纤维混杂复合材料损耗因子的求解程序,研究了湿热环境下温度、湿度、湿热耦合、铺层顺序、铺层厚度及纤维铺设角度对玻/碳纤维混杂复合材料层合梁阻尼性能的影响规律。结果表明:较常温干态环境,湿热条件增大了玻/碳纤维混杂复合材料的损耗因子;当玻璃纤维复合材料单层在外层铺设时,玻/碳纤维混杂复合材料的阻尼性能较好。此外发现,当铺设角度为[±θ]、玻璃纤维复合材料单层板位于外层时,玻/碳纤维混杂复合材料层合梁的损耗因子受铺设角度的影响非常显著,当铺设角度为90°时阻尼性能较好。On the basis of considering hydrothermal stresses and the influence of hydrothermal environment on the mechanical properties of composite materials,a damping prediction model of glass/carbon fiber interlayer hybrid composite laminated beams under hydrothermal environment was established according to the principle of energy dissipation and the macroscopic strain energy method,and the loss factors of glass/carbon fiber hybrid composites were calculated by MATLAB programming.The effects of temperature,humidity,moisture-heat coupling,stacking sequence,ply thickness and fiber ply angle on the damping properties of glass/carbon fiber hybrid composite laminated beams were studied under hydrothermal environment.The results show that the loss factors of glass/carbon fiber hybrid composites are increased by hydrothermal conditions when compared with normal temperature and dry environment;and the damping properties of glass/carbon fiber hybrid composites become better when the glass fiber composite laminas are laid on the outer layers.it is also found that the loss factors of glass/carbon fiber hybrid composite laminated beams are significantly affected by ply angles when the glass fiber composite laminas are located in the outer layers and the ply angles are[±θ].The damping properties are relatirely good when the ply angle is 90°.

关 键 词：湿热环境 玻/碳纤维混杂复合材料层合梁 宏观应变能法 结构阻尼 

分 类 号：TB332[一般工业技术—材料科学与工程]