Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method
This study presents a comprehensive method for detecting debonding defects in concrete-filled steel tube (CFST) structures using wave propagation analysis with externally attached piezoelectric ceramic sensors. Experimental tests and numerical simulations were conducted to evaluate the sensitivity a...
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| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/24/8222 |
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| author | Chenfei Wang Yixin Yang Guangming Fan Junyin Lian Fangjian Chen |
| author_facet | Chenfei Wang Yixin Yang Guangming Fan Junyin Lian Fangjian Chen |
| author_sort | Chenfei Wang |
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| description | This study presents a comprehensive method for detecting debonding defects in concrete-filled steel tube (CFST) structures using wave propagation analysis with externally attached piezoelectric ceramic sensors. Experimental tests and numerical simulations were conducted to evaluate the sensitivity and accuracy of two measurement techniques—the flat and oblique measurement methods—in detecting debonding defects of varying lengths and heights. The results demonstrate that the flat measurement method excels in detecting debonding height, while the oblique method is more effective for detecting debonding length. A normalized judgment index (DI) was introduced to quantify the correlation between debonding characteristics and the detected signal amplitude, revealing the significant influence of sensor spacing on detection accuracy. Furthermore, a mathematical model based on wavelet packet energy analysis was developed to establish a linear relationship between wavelet packet energy and debonding size. This model offers a scientific foundation for the quantitative detection of debonding defects and provides a new approach to the health monitoring of CFST structures. The integrated use of both measurement techniques enhances detection precision, enabling both qualitative and quantitative defect analysis, which can significantly guide the maintenance and repair of CFST structures. |
| format | Article |
| id | doaj-art-e13fc96b0527489c8f7ef738ff4f50d8 |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-e13fc96b0527489c8f7ef738ff4f50d82024-12-27T14:53:22ZengMDPI AGSensors1424-82202024-12-012424822210.3390/s24248222Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis MethodChenfei Wang0Yixin Yang1Guangming Fan2Junyin Lian3Fangjian Chen4College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaCollege of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaCollege of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, ChinaCollege of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, ChinaCollege of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361024, ChinaThis study presents a comprehensive method for detecting debonding defects in concrete-filled steel tube (CFST) structures using wave propagation analysis with externally attached piezoelectric ceramic sensors. Experimental tests and numerical simulations were conducted to evaluate the sensitivity and accuracy of two measurement techniques—the flat and oblique measurement methods—in detecting debonding defects of varying lengths and heights. The results demonstrate that the flat measurement method excels in detecting debonding height, while the oblique method is more effective for detecting debonding length. A normalized judgment index (DI) was introduced to quantify the correlation between debonding characteristics and the detected signal amplitude, revealing the significant influence of sensor spacing on detection accuracy. Furthermore, a mathematical model based on wavelet packet energy analysis was developed to establish a linear relationship between wavelet packet energy and debonding size. This model offers a scientific foundation for the quantitative detection of debonding defects and provides a new approach to the health monitoring of CFST structures. The integrated use of both measurement techniques enhances detection precision, enabling both qualitative and quantitative defect analysis, which can significantly guide the maintenance and repair of CFST structures.https://www.mdpi.com/1424-8220/24/24/8222concrete-filled steel tubedebonding defectspiezoelectric sensorsfluctuation analysiswavelet packet analysis |
| spellingShingle | Chenfei Wang Yixin Yang Guangming Fan Junyin Lian Fangjian Chen Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method Sensors concrete-filled steel tube debonding defects piezoelectric sensors fluctuation analysis wavelet packet analysis |
| title | Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method |
| title_full | Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method |
| title_fullStr | Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method |
| title_full_unstemmed | Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method |
| title_short | Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method |
| title_sort | detection of debonding defects in concrete filled steel tubes using fluctuation analysis method |
| topic | concrete-filled steel tube debonding defects piezoelectric sensors fluctuation analysis wavelet packet analysis |
| url | https://www.mdpi.com/1424-8220/24/24/8222 |
| work_keys_str_mv | AT chenfeiwang detectionofdebondingdefectsinconcretefilledsteeltubesusingfluctuationanalysismethod AT yixinyang detectionofdebondingdefectsinconcretefilledsteeltubesusingfluctuationanalysismethod AT guangmingfan detectionofdebondingdefectsinconcretefilledsteeltubesusingfluctuationanalysismethod AT junyinlian detectionofdebondingdefectsinconcretefilledsteeltubesusingfluctuationanalysismethod AT fangjianchen detectionofdebondingdefectsinconcretefilledsteeltubesusingfluctuationanalysismethod |