Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emission
Understanding the acoustic emission effects on bolts under cyclic loading is of great significance for the support of roadways. The presented research focuses on the acoustic emission characteristics of bolts under cyclic loading. The following main conclusions were drawn: (1) With a higher loading...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-05-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147719849354 |
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| _version_ | 1832553144455790592 |
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| author | Tieliang An Xigui Zheng Dengxing Zhu Deyu Qian Yu Guo Juncai Cao |
| author_facet | Tieliang An Xigui Zheng Dengxing Zhu Deyu Qian Yu Guo Juncai Cao |
| author_sort | Tieliang An |
| collection | DOAJ |
| description | Understanding the acoustic emission effects on bolts under cyclic loading is of great significance for the support of roadways. The presented research focuses on the acoustic emission characteristics of bolts under cyclic loading. The following main conclusions were drawn: (1) With a higher loading frequency, the acoustic emission counts rate increases, while the total energy released in a given cyclic loading path decreases. (2) A fitting formula is established according to the relationship between the tension amplitude and cumulative acoustic emission counts, which can analyze the tension magnitude level of the cyclic load. (3) A damage factor for a cyclic load is proposed based on the acoustic emission counts generated during the cyclic and monotonic loading process that can analyze the degree of damage to the anchorage system caused by the cyclic load. (4) Based on the spatial distribution of the acoustic emission orientation points and the acoustic emission energy generated during the pull-out process, the acoustic emission damage evolution process of the anchorage specimens is deduced, and the mechanism of the high stability of the pretension anchorage system after cyclic loading is analyzed. The above conclusions may provide some experimental references for the application of acoustic emission technology in bolts supporting roadways. |
| format | Article |
| id | doaj-art-ae57aabe6613438facfa9c5271c02bb8 |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2019-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-ae57aabe6613438facfa9c5271c02bb82025-02-03T05:55:24ZengWileyInternational Journal of Distributed Sensor Networks1550-14772019-05-011510.1177/1550147719849354Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emissionTieliang An0Xigui Zheng1Dengxing Zhu2Deyu Qian3Yu Guo4Juncai Cao5Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou, ChinaARC Centre of Excellence for Geotechnical Science and Engineering, Civil, Surveying and Environmental Engineering, The University of Newcastle, Callaghan, NSW, AustraliaUnderstanding the acoustic emission effects on bolts under cyclic loading is of great significance for the support of roadways. The presented research focuses on the acoustic emission characteristics of bolts under cyclic loading. The following main conclusions were drawn: (1) With a higher loading frequency, the acoustic emission counts rate increases, while the total energy released in a given cyclic loading path decreases. (2) A fitting formula is established according to the relationship between the tension amplitude and cumulative acoustic emission counts, which can analyze the tension magnitude level of the cyclic load. (3) A damage factor for a cyclic load is proposed based on the acoustic emission counts generated during the cyclic and monotonic loading process that can analyze the degree of damage to the anchorage system caused by the cyclic load. (4) Based on the spatial distribution of the acoustic emission orientation points and the acoustic emission energy generated during the pull-out process, the acoustic emission damage evolution process of the anchorage specimens is deduced, and the mechanism of the high stability of the pretension anchorage system after cyclic loading is analyzed. The above conclusions may provide some experimental references for the application of acoustic emission technology in bolts supporting roadways.https://doi.org/10.1177/1550147719849354 |
| spellingShingle | Tieliang An Xigui Zheng Dengxing Zhu Deyu Qian Yu Guo Juncai Cao Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emission International Journal of Distributed Sensor Networks |
| title | Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emission |
| title_full | Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emission |
| title_fullStr | Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emission |
| title_full_unstemmed | Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emission |
| title_short | Experimental investigation of pretensioned bolts under cyclic loading: Damage assessment using acoustic emission |
| title_sort | experimental investigation of pretensioned bolts under cyclic loading damage assessment using acoustic emission |
| url | https://doi.org/10.1177/1550147719849354 |
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