航天器环境工程2024，Vol.41Issue(2)：211-218,8.DOI:10.12126/see.2023134
基于超声能量特征的复合结构材料脱粘检测方法
A method for debonding detection of composite structural materials based on ultrasonic energy characteristics
摘要
Abstract
In view of the aliasing of ultrasonic echo signal due to the constraints of thickness,number of layers,and types of composite materials,a method for detecting the interface debonding of composite structures was proposed in this paper,which directly used the energy characteristics of the ultrasonic longitudinal wave reflection of the aliasing signal.Firstly,the ultrasonic signal reflection and transmission characteristic model of single-and multi-layer composite structures was established.Then,the ultrasonic echo energy characteristics of structures under different interface bonding states were extracted and analyzed.Based on this model,the debonding detection simulation of steel-rubber-rubber composite structures was carried out.The interface debonding was identified by the introduction of energy difference of signals.Finally,the steel-rubber-rubber composite structural debonding samples were discovered by the ultrasonic flaw detection equipment.Both theoretical analysis and experimental verification show that the proposed method may realize effective defect detection of multi-layer composite structures.关键词
多层复合结构/界面脱粘缺陷/超声反射模型/能量特征/超声检测Key words
multi-layer composite structures/interface debonding defect/ultrasonic reflection model/energy characteristics/ultrasonic testing分类
通用工业技术引用本文复制引用
封华楠,王鉴,聂鹏飞,秦鹏,韩焱..基于超声能量特征的复合结构材料脱粘检测方法[J].航天器环境工程,2024,41(2):211-218,8.基金项目
山西省基础研究计划项目(编号:202103021224189) （编号:202103021224189）
