福州大学学报（自然科学版）2024，Vol.52Issue(4)：454-461,8.DOI:10.7631/issn.1000-2243.23206
利用Lamb波时间反转法的套筒灌浆连接缺陷位置检测
Defect location of grouting sleeve connection detect using Lamb wave time reversal method
摘要
Abstract
In view of the defect location of grouting sleeve connector in prefabricated buildings,the finite element model of grouting sleeve structure is established,and the propagation rule of grouting sleeve structure is studied by Lamb wave.On the basis of determining the best excitation signal,the damage defect location of the grouting material was detected.Moreover the damage-free and damaged measuring areas were set.The results show that the focusing peak in the damaged area decreased by 11.70%compared with the average value of the focusing peak in the undamaged area,which shows the judgment of the Lamb wave time reversal method.It is effective in locate the defects of grouting sleeve and has good application prospect in the field of structural nondestructive testing.关键词
装配式建筑/套筒灌浆连接/Lamb波/时间反转法/缺陷定位Key words
prefabricated building/grouting sleeve connection/Lamb wave/time reversal method/defect location分类
建筑与水利引用本文复制引用
汪弘杰,林伟,陈尚鸿,林新,黄金土..利用Lamb波时间反转法的套筒灌浆连接缺陷位置检测[J].福州大学学报（自然科学版）,2024,52(4):454-461,8.基金项目
国家自然科学基金资助项目(52178464) （52178464）
