{"title":"基于光纤光栅应变传感器的超声导波技术在钢筋混凝土腐蚀早期检测中的应用","authors":"Nura Habbaba , Samir Mustapha , Ye Lu","doi":"10.1016/j.ultras.2025.107701","DOIUrl":null,"url":null,"abstract":"<div><div>Reinforced concrete (RC) is commonly utilized in construction, but corrosion, particularly in marine environments, causes considerable challenges, resulting in high maintenance costs. Non-destructive corrosion detection techniques are critical to ensure structural safety. This study aims to detect early corrosion in steel-reinforced concrete using leaking UGW. UGW propagation in steel bars embedded in concrete and energy leakage through the concrete medium were explored experimentally and numerically. The study also aims to provide passive corrosion monitoring using embedded Fiber Bragg Gratings (FBG) strain sensors. An accelerated corrosion setup using the impressed voltage technique was employed to simulate natural corrosion in RC specimens. The results reveal that the first longitudinal mode, L(0,1), is dominant and its amplitude is sensitive to corrosion, even when monitored away from the corrosion source. Different corrosion stages (initiation, progression, and diameter reduction) were distinguished by variations in signal strength and L(0,1) characteristics. The leaky wave observed from bar 2, which was subjected to corrosion and propagated to neighboring bars, showed sensitivity to the diameter reduction phase and crack propagation. This was indicated by a significant drop in amplitude during that phase. Additionally, the integration of FBG sensors provided further insights into the correlation between strain and GW readings, particularly during the diameter reduction phase. The results demonstrate the effectiveness of UGW for the detection and assessment of corrosion in steel-reinforced concrete structures.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"154 ","pages":"Article 107701"},"PeriodicalIF":3.8000,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Early detection of corrosion in reinforced concrete using ultrasonic guided wave technique correlated with embedded fiber bragg grating strain sensors\",\"authors\":\"Nura Habbaba , Samir Mustapha , Ye Lu\",\"doi\":\"10.1016/j.ultras.2025.107701\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Reinforced concrete (RC) is commonly utilized in construction, but corrosion, particularly in marine environments, causes considerable challenges, resulting in high maintenance costs. Non-destructive corrosion detection techniques are critical to ensure structural safety. This study aims to detect early corrosion in steel-reinforced concrete using leaking UGW. UGW propagation in steel bars embedded in concrete and energy leakage through the concrete medium were explored experimentally and numerically. The study also aims to provide passive corrosion monitoring using embedded Fiber Bragg Gratings (FBG) strain sensors. An accelerated corrosion setup using the impressed voltage technique was employed to simulate natural corrosion in RC specimens. The results reveal that the first longitudinal mode, L(0,1), is dominant and its amplitude is sensitive to corrosion, even when monitored away from the corrosion source. Different corrosion stages (initiation, progression, and diameter reduction) were distinguished by variations in signal strength and L(0,1) characteristics. The leaky wave observed from bar 2, which was subjected to corrosion and propagated to neighboring bars, showed sensitivity to the diameter reduction phase and crack propagation. This was indicated by a significant drop in amplitude during that phase. Additionally, the integration of FBG sensors provided further insights into the correlation between strain and GW readings, particularly during the diameter reduction phase. The results demonstrate the effectiveness of UGW for the detection and assessment of corrosion in steel-reinforced concrete structures.</div></div>\",\"PeriodicalId\":23522,\"journal\":{\"name\":\"Ultrasonics\",\"volume\":\"154 \",\"pages\":\"Article 107701\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2025-05-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ultrasonics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0041624X25001386\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ACOUSTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ultrasonics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0041624X25001386","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}
Early detection of corrosion in reinforced concrete using ultrasonic guided wave technique correlated with embedded fiber bragg grating strain sensors
Reinforced concrete (RC) is commonly utilized in construction, but corrosion, particularly in marine environments, causes considerable challenges, resulting in high maintenance costs. Non-destructive corrosion detection techniques are critical to ensure structural safety. This study aims to detect early corrosion in steel-reinforced concrete using leaking UGW. UGW propagation in steel bars embedded in concrete and energy leakage through the concrete medium were explored experimentally and numerically. The study also aims to provide passive corrosion monitoring using embedded Fiber Bragg Gratings (FBG) strain sensors. An accelerated corrosion setup using the impressed voltage technique was employed to simulate natural corrosion in RC specimens. The results reveal that the first longitudinal mode, L(0,1), is dominant and its amplitude is sensitive to corrosion, even when monitored away from the corrosion source. Different corrosion stages (initiation, progression, and diameter reduction) were distinguished by variations in signal strength and L(0,1) characteristics. The leaky wave observed from bar 2, which was subjected to corrosion and propagated to neighboring bars, showed sensitivity to the diameter reduction phase and crack propagation. This was indicated by a significant drop in amplitude during that phase. Additionally, the integration of FBG sensors provided further insights into the correlation between strain and GW readings, particularly during the diameter reduction phase. The results demonstrate the effectiveness of UGW for the detection and assessment of corrosion in steel-reinforced concrete structures.
期刊介绍:
Ultrasonics is the only internationally established journal which covers the entire field of ultrasound research and technology and all its many applications. Ultrasonics contains a variety of sections to keep readers fully informed and up-to-date on the whole spectrum of research and development throughout the world. Ultrasonics publishes papers of exceptional quality and of relevance to both academia and industry. Manuscripts in which ultrasonics is a central issue and not simply an incidental tool or minor issue, are welcomed.
As well as top quality original research papers and review articles by world renowned experts, Ultrasonics also regularly features short communications, a calendar of forthcoming events and special issues dedicated to topical subjects.