Impact localization of composite laminates based on weight function compensation localization algorithm of thin film sensors

作     者：Ying Wang Hongmei Li Shaowei Lu Xingmin Liu Wei Li Xiaoqiang Wang Lu Zhang Qingxuan Wang 

作者机构：College of Aerospace EngineeringShenyang Aerospace University(SAU)ShenyangChina College of Material Science and EngineeringShenyang Aerospace University(SAU)ShenyangChina 

出 版 物：《International Journal of Smart and Nano Materials》 (国际智能和纳米材料杂志（英文）)

年 卷 期：2023年第14卷第2期

页      面：139-154页

核心收录：

学科分类：08[工学] 1010[医学-医学技术（可授医学、理学学位）] 0805[工学-材料科学与工程（可授工学、理学学位）] 1009[医学-特种医学] 

基　　金：This work was financially supported by National Natural Science Foundation of China(11902204) Liaoning Revitalization Talents Program(XLYC2007118) Aeronautical Science Foundation(201903054001) Shenyang Youth Technological Innovation Talent Project(RC200030),Shenyang Natural Science Foundation Project(22-315-6-07) Education Department of Liaoning Province’s Item(LJKQZ 20222263) Basic Scientific Research Project of Liaoning Provincial Department of Education(LJKMZ20220566). 

主　　题：Electric resistance change method Mxene/CNT/CuNps film sensor damage localization Weighting function 

摘      要：Composite structures are sensitive to impact damage in practical engineering.Electric resistance change method(ERCM)is an ideal technique for damage monitoring of composite structures.Due to the anisotropy of fiber-resin matrix composites,impact location monitoring is difficult,and research on impact location of fiber composite laminates(FRPs)is limited.A preparation method of MXene/CNT/CuNps thin film sensor is proposed.According to the modeling simulation and theoretical calculation,the resistance change characteristics of the thin film sensor are obtained,the relationship between the impact distance and the resistance change is established,and the sensor array is designed.A three-point localization algorithm and a weight function compensation localization algorithm are proposed,which can improve the imaging accuracy of the impact position.The impact point location was observed and analyzed using ultrasonic C-scan technology.The results show that the weight function compensation positioning algorithm can accurately locate the impact of the composite structure,and the error in the X direction is 7.1%,the error in the Y direction is 0.03%,which verifies the effectiveness of the method.