复合材料胶接结构的全场应变分布研究  

Full Field Strain Distribution Measurement Analysis of Composite Bonded Structures

作　　者：郭霞[1,2] 迟海 贺俊智[1,2] 刘伟丽 高峡 GUO Xia;CHI Hai;HE Junzhi;LIU WeiLi;GAO Xia(Beijing Centre for Physical and Chemical Analysis, Beijing 100089 China;Beijing Key Laboratory of Organic Materials Testing Technology ＆ Quality Evaluation, Beijing 100089 China;Beijing Academy of Science and Technology Key Laboratory of Analysis and Testing Technology, Beijing 10089 China)

机构地区：[1]北京市理化分析测试中心,北京100089 [2]有机材料检测技术与质量评价北京市重点实验室,北京100089 [3]北京市科学技术研究院分析测试技术重点实验室,北京100089

出　　处：《高科技纤维与应用》2018年第2期52-57,68,共7页Hi-Tech Fiber and Application

基　　金：复合材料单搭接胶接接头疲劳特性及参数研究;2016ZZ-84

摘　　要：复合材料结构胶接连接具有高的结构效率并且是减轻结构重量的一种措施。复合材料胶接结构的静载失效机理复杂,因此本文采用更为全面的数字图像相关技术对全场应变分布进行研究。通过对平衡型复合材料单搭接接头进行拉伸失效试验,并采用数字图像技术研究全场应变,采用电阻应变片接触式测量方法进行对比分析,最后系统地研究了拉伸作用下的平衡型复合材料单搭接接头的表面轴向应变分布及厚度截面的剪应变分布。Composite bonded structures has high structural efficiency and is a measure to reduce structural weight. The static failure mechanism of composite adhesive structure is complex. Therefore,a more comprehensive digital image correlation technique is used to study the strain distribution in the whole field. Through the tensile failure test on the balanced composite bonded structures,the full field strain was studied by digital image technology. The resistance strain gauge contact method is used for comparative analysis. The axial strain distribution and the shear strain distribution of the cross section of the balanced composite single lap joint under tension are studied systematically.

关 键 词：复合材料单搭接胶接接头 拉伸性能 数字图像技术(DIC) 电阻式应变测量 失效机理 

分 类 号：TB33[一般工业技术—材料科学与工程]