A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method
Piezoelectric lead zirconate titanate (PZT) is being gradually applied into practice as a new intelligent material for structural health monitoring. In order to study the damage detection properties of PZT on concrete slabs, simply supported reinforced concrete slabs with piezoelectric patches attac...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2014-10-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/14/10/19897 |
| _version_ | 1798000071048953856 |
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| author | Xianyan Hu Hongping Zhu Dansheng Wang |
| author_facet | Xianyan Hu Hongping Zhu Dansheng Wang |
| author_sort | Xianyan Hu |
| collection | DOAJ |
| description | Piezoelectric lead zirconate titanate (PZT) is being gradually applied into practice as a new intelligent material for structural health monitoring. In order to study the damage detection properties of PZT on concrete slabs, simply supported reinforced concrete slabs with piezoelectric patches attached to their surfaces were chosen as the research objects and the Electromechanical Impedance method (EMI) was adopted for research. Five kinds of damage condition were designed to test the impedance values at different frequency bands. Consistent rules are found by calculation and analysis. Both the root mean square deviation (RMSD) and the correlation coefficient deviation (CCD) damage indices are capable of detecting the structural damage. The newly proposed damage index Ry/Rx can also predict the changes well. The numerical and experimental studies verify that the Electromechanical Impedance method can accurately predict changes in the amount of damage in reinforced concrete slabs. The damage index changes regularly with the distance of damages to the sensor. This relationship can be used to determine the damage location. The newly proposed damage index Ry/Rx is accurate in determining the damage location. |
| first_indexed | 2024-04-11T11:13:08Z |
| format | Article |
| id | doaj.art-b9d3c5f394b9439682e9784adef6d499 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T11:13:08Z |
| publishDate | 2014-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b9d3c5f394b9439682e9784adef6d4992022-12-22T04:27:19ZengMDPI AGSensors1424-82202014-10-011410198971990910.3390/s141019897s141019897A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance MethodXianyan Hu0Hongping Zhu1Dansheng Wang2School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, ChinaPiezoelectric lead zirconate titanate (PZT) is being gradually applied into practice as a new intelligent material for structural health monitoring. In order to study the damage detection properties of PZT on concrete slabs, simply supported reinforced concrete slabs with piezoelectric patches attached to their surfaces were chosen as the research objects and the Electromechanical Impedance method (EMI) was adopted for research. Five kinds of damage condition were designed to test the impedance values at different frequency bands. Consistent rules are found by calculation and analysis. Both the root mean square deviation (RMSD) and the correlation coefficient deviation (CCD) damage indices are capable of detecting the structural damage. The newly proposed damage index Ry/Rx can also predict the changes well. The numerical and experimental studies verify that the Electromechanical Impedance method can accurately predict changes in the amount of damage in reinforced concrete slabs. The damage index changes regularly with the distance of damages to the sensor. This relationship can be used to determine the damage location. The newly proposed damage index Ry/Rx is accurate in determining the damage location.http://www.mdpi.com/1424-8220/14/10/19897PZTElectromechanical Impedance methoddamage indexreinforced concrete slabdamage detection |
| spellingShingle | Xianyan Hu Hongping Zhu Dansheng Wang A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method Sensors PZT Electromechanical Impedance method damage index reinforced concrete slab damage detection |
| title | A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method |
| title_full | A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method |
| title_fullStr | A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method |
| title_full_unstemmed | A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method |
| title_short | A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method |
| title_sort | study of concrete slab damage detection based on the electromechanical impedance method |
| topic | PZT Electromechanical Impedance method damage index reinforced concrete slab damage detection |
| url | http://www.mdpi.com/1424-8220/14/10/19897 |
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