传感技术学报2019，Vol.32Issue(1)：43-49,7.DOI:10.3969/j.issn.1004-1699.2019.01.008
胶粘剂对表贴式聚酰亚胺光纤布拉格光栅应变传递的影响分析
Analysis of the Effect of Adhesives on Strain Transfer for Surface Bonded Polyimide Fiber Bragg Grating
摘要
Abstract
When the fiber Bragg grating sensor is used to measure the strain of a structure, it needs to be pasted and generates a coordination deformation with the measured substrate. Therefore, the selection of adhesives has a direct influence on the measurement results. To solve this problem, by improving surface bonded strain transfer model, a more reasonable model is built to analyze main factors affecting strain transfer coefficient. The theoretical analysis indicates that average strain transfer coefficient increases along with the increase of shear modulus of adhesive. By controlling variables, Polyimide FBGs are pasted on the surface of equal strength beam for a contrast experiment with Loctite 480 adhesive, AB adhesive, Loctite 401 adhesive, epoxy resin adhesive, and Loctite 3311 adhesive. The corresponding strain transfer coefficients have around 5％ relative error with the calculation of the theoretical model.The results provide an important reference for engineering applications of surface bonded FBG strain measurement.关键词
聚酰亚胺光纤布拉格光栅/表贴式传感器/应变传递/胶粘剂/剪切模量Key words
polyimide FBG/surface bonded sensor/strain transfer/adhesive/shear modulus分类
信息技术与安全科学引用本文复制引用
曾鹏,王源,陈飞琼,孙阳阳,张清华,黄肖迪,由泽伟..胶粘剂对表贴式聚酰亚胺光纤布拉格光栅应变传递的影响分析[J].传感技术学报,2019,32(1):43-49,7.基金项目
国家自然科学基金项目(51608528) （51608528）
江苏省自然科学基金项目(BK20161467) （BK20161467）
中央军事委员会国防科技基金(3602052) （3602052）
