Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading Test
External load is one of the important reasons for structural damage and failure of reinforced concrete sewage pipelines, causing pipe leaks, pipe explosions, and even road collapses. In this paper, three-point loading experiments on full-size reinforced concrete pipes were carried out, and the damag...
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MDPI AG
2022-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/17/8624 |
| _version_ | 1797496392784019456 |
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| author | Pengpeng Li Weidong Zhang Zhoujing Ye Yajian Wang Songli Yang Linbing Wang |
| author_facet | Pengpeng Li Weidong Zhang Zhoujing Ye Yajian Wang Songli Yang Linbing Wang |
| author_sort | Pengpeng Li |
| collection | DOAJ |
| description | External load is one of the important reasons for structural damage and failure of reinforced concrete sewage pipelines, causing pipe leaks, pipe explosions, and even road collapses. In this paper, three-point loading experiments on full-size reinforced concrete pipes were carried out, and the damage state of the pipes was monitored by acoustic emission technology; the evolution trend of the mechanical properties and acoustic emission monitoring indexes under load was investigated. The experimental results showed that: (1) According to the change of acoustic emission energy and accumulated energy during loading, the mechanical response of the pipeline can be divided into an elastic compression phase, a plastic damage phase, and a residual strength phase; (2) The accumulated acoustic emission energy (∑E) and the maximum value of a single acoustic emission energy (E<sub>max</sub>) can effectively characterize the different damage states of the loaded pipe; (3) A “double-peak” was observed in AF/RA data within the loading process. The appearance of the two peaks corresponds to the change of the loading phase of the pipeline and the occurrence of the major damage. Thus, the AF/RA index can effectively characterize the loading state and the damage degree of the pipeline. This study provides a valuable reference for pipeline health monitoring by using AE technology. |
| first_indexed | 2024-03-10T03:03:01Z |
| format | Article |
| id | doaj.art-b3a84b860ed54435b3d2b913892afa99 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T03:03:01Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b3a84b860ed54435b3d2b913892afa992023-11-23T12:42:52ZengMDPI AGApplied Sciences2076-34172022-08-011217862410.3390/app12178624Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading TestPengpeng Li0Weidong Zhang1Zhoujing Ye2Yajian Wang3Songli Yang4Linbing Wang5National Center for Materials Service Safety, University of Science and Technology Beijing, No. 30, Xueyuan Road, Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing, No. 30, Xueyuan Road, Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing, No. 30, Xueyuan Road, Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing, No. 30, Xueyuan Road, Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing, No. 30, Xueyuan Road, Beijing 100083, ChinaSchool of Environmental, Civil, Agricultural and Mechanical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USAExternal load is one of the important reasons for structural damage and failure of reinforced concrete sewage pipelines, causing pipe leaks, pipe explosions, and even road collapses. In this paper, three-point loading experiments on full-size reinforced concrete pipes were carried out, and the damage state of the pipes was monitored by acoustic emission technology; the evolution trend of the mechanical properties and acoustic emission monitoring indexes under load was investigated. The experimental results showed that: (1) According to the change of acoustic emission energy and accumulated energy during loading, the mechanical response of the pipeline can be divided into an elastic compression phase, a plastic damage phase, and a residual strength phase; (2) The accumulated acoustic emission energy (∑E) and the maximum value of a single acoustic emission energy (E<sub>max</sub>) can effectively characterize the different damage states of the loaded pipe; (3) A “double-peak” was observed in AF/RA data within the loading process. The appearance of the two peaks corresponds to the change of the loading phase of the pipeline and the occurrence of the major damage. Thus, the AF/RA index can effectively characterize the loading state and the damage degree of the pipeline. This study provides a valuable reference for pipeline health monitoring by using AE technology.https://www.mdpi.com/2076-3417/12/17/8624acoustic emissionreinforced concrete sewage pipelinestructural health monitoringmechanical loadingparameter analysisRA/AF |
| spellingShingle | Pengpeng Li Weidong Zhang Zhoujing Ye Yajian Wang Songli Yang Linbing Wang Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading Test Applied Sciences acoustic emission reinforced concrete sewage pipeline structural health monitoring mechanical loading parameter analysis RA/AF |
| title | Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading Test |
| title_full | Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading Test |
| title_fullStr | Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading Test |
| title_full_unstemmed | Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading Test |
| title_short | Analysis of Acoustic Emission Energy from Reinforced Concrete Sewage Pipeline under Full-Scale Loading Test |
| title_sort | analysis of acoustic emission energy from reinforced concrete sewage pipeline under full scale loading test |
| topic | acoustic emission reinforced concrete sewage pipeline structural health monitoring mechanical loading parameter analysis RA/AF |
| url | https://www.mdpi.com/2076-3417/12/17/8624 |
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