2.5维树脂基编织复合材料迟滞阻尼特性试验研究  

Experimental Study on Hysteretic Damping Characteristics of 2.5D Resin-based Braided Composites

作　　者：刘杰明 LIU Jieming(College of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210016

出　　处：《机械制造与自动化》2022年第3期19-21,共3页Machine Building & Automation

摘　　要：采用迟滞回线法对用于航空航天领域的2.5维树脂基编织复合材料的材料阻尼特性进行试验研究,观察材料的迟滞阻尼特性与循环拉伸加卸载次数和加载应力水平的关系。研究发现:通过迟滞回线法获得的损耗因子与施加的循环拉伸加卸载频率相关,而与加卸载应力水平无关。The experimental study on damping properties of 2.5 D resin-based braided composites used in aerospace field are conducted by hysteresis loop method,in which the relationship between the hysteretic damping characteristics of the material and the number of loading and unloading cycles and the loading stress level is observed.The study finds that the loss factor obtained by the hysteretic loop method is related to the applied cyclic tension loading and unloading frequency,but independent of the loading and unloading stress level.

关 键 词：2.5维编织复合材料 树脂基 迟滞回线 迟滞阻尼 静力学 

分 类 号：V258[一般工业技术—材料科学与工程]