埋入式光纤智能复合材料简化界面的应变传递分析  

Strain Transfer Analysis of Simplified Interface of Embedded Optical FiberSmart Composites Material

作　　者：刘荣梅[1] 赵振 白树伟 LIU Rongmei;ZHAO Zhen;BAI Shuwei(College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China)

机构地区：[1]南京航空航天大学航空学院,南京210016 [2]上海机电工程研究所,上海201109

出　　处：《材料导报》2021年第20期20161-20165,共5页Materials Reports

基　　金：国家自然科学基金(11402112)。

摘　　要：光纤埋入复合材料后会因与复合材料铺层方向不同而形成眼状界面。本研究通过面积等效的方式将眼状界面简化为圆形,建立应变传递模型,并基于有限元分析对模型进行验证,对比分析了简化界面与眼状界面模型多个位置的应变传递率。通过有限元软件计算出两种界面模型在拉伸载荷下的平均应变传递速率,与实验对比结果表明:简化界面模型与眼状界面模型在各点的应变传递率吻合较好,有限元计算结果与实验相匹配,简化后的界面模型可以替代眼状界面模型进行应变传递分析。When the optical fiber is buried in the composite material,an eye-shaped interface is formed due to the difference in the direction of the lay-up layer with the composite material.The eye-shaped interface is now simplified to a circle by area equivalence,a strain transfer model is established,and the model is evaluated based on finite element analysis.The average strain transfer rate of the two interface models under tensile load is calculated by finite element software and compared with the experiments.The results show that:the average strain transmittance of the two interface models under simulated tensile load is compared with that of the ophthalmic model.The strain transfer rate of the interface model at each point agrees well,and the results of the finite element calculations match with the experiments.The simplified interface model can replace the eye-shaped interface model for strain transfer analysis.

关 键 词：界面 光纤 应变传递 拉伸 复合材料 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]