传感技术学报2025，Vol.38Issue(7)：1190-1198,9.DOI:10.3969/j.issn.1004-1699.2025.07.007
碳纤维增强聚合物隐藏纤维断裂缺陷检测的涡流探头仿真设计
Simulation Design of Eddy Current Probe for Detecting Hidden Fiber Fracture Defect in Carbon Fiber Reinforced Polymer
摘要
Abstract
Targeting at the problem that the traditional eddy current testing methods are difficult to detect the hidden fiber fracture de-fects in carbon fiber reinforced polymer(CFRP)materials,a new eddy current probe is designed.The probe consists of two horizontally placed rectangular driving coils and a circular pickup coil.The differential drive can pre-filter out part of the noise.In addition,the hor-izontally placed rectangular coil produces a more uniform eddy current with better penetration in the vertical direction,which is more fa-vorable for the detection of CFRP materials with laminated structures.Based on the construction of a three-dimensional finite element model,the changes of eddy current paths in CFRP materials with different layup directions are analyzed,the sensitivity of different probes is compared,and the changes of the induced voltage of the probes are analyzed when the fiber breaks are located in different lay-ers.The results show that the designed probe can effectively suppress the lift off effect,which has higher sensitivity for the detection of fiber fracture in CFRP materials,and the direction and location of fiber fracture can be determined according to the change in induced voltage of the probe.This study provides a theoretical basis for probe design and eddy current detection of CFRP materials.关键词
涡流检测/涡流探头/有限元仿真/碳纤维复合材料/纤维断裂Key words
eddy current testing/eddy current probe/finite element simulation/carbon fiber reinforced polymer/fiber fracture分类
机械制造引用本文复制引用
严昌利,包俊,熊新..碳纤维增强聚合物隐藏纤维断裂缺陷检测的涡流探头仿真设计[J].传感技术学报,2025,38(7):1190-1198,9.基金项目
国家自然科学基金项目(62203195) （62203195）
云南省应用基础研究专项青年项目(202201AU070102) （202201AU070102）
