Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensors
Tunnels and subway blast doors are effective barriers to terrorist attacks and emergencies, and research into the mechanical properties of blast doors under explosive dynamic loads can improve and enhance the performance thereof. In this article, surface strain measurements on subway blast door mode...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi - SAGE Publishing
2018-03-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147718766860 |
| _version_ | 1797766686889213952 |
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| author | Ziming Xiong Qinghua Zhang Hao Lu Shaoshuai Shi Zewei You Yuanpu Xia Lin Bu |
| author_facet | Ziming Xiong Qinghua Zhang Hao Lu Shaoshuai Shi Zewei You Yuanpu Xia Lin Bu |
| author_sort | Ziming Xiong |
| collection | DOAJ |
| description | Tunnels and subway blast doors are effective barriers to terrorist attacks and emergencies, and research into the mechanical properties of blast doors under explosive dynamic loads can improve and enhance the performance thereof. In this article, surface strain measurements on subway blast door models under dynamic load are carried out using quasi-distributed fibre Bragg grating sensors. The principle underpinning fibre Bragg grating sensing is introduced before the experiment. In the experiment, a model of an explosion-proof door was designed, and the experimental foundation pit was designed to be used to fix the explosion-proof door. Then, eight fibre Bragg grating sensors are placed at different positions on the surface of the explosion door to measure the strain at the time of explosion. Through the experiment we found that the optical fibre grating sensing system can be used under explosive loading surface strain: the strain distribution on the surface of the protective door is revealed under large dynamic strain. At the same time, the rebound effect of the protective door in the explosion was found through the strain phenomenon in double peak phenomenon. The strain distribution and rebound effect in the test results can provide a useful reference for the mechanical design of the blasting door and the strain monitoring of reinforced concrete structures under dynamic load. |
| first_indexed | 2024-03-12T20:27:47Z |
| format | Article |
| id | doaj.art-e2e1c22c37d94e80973e6c9e6346aecd |
| institution | Directory Open Access Journal |
| issn | 1550-1477 |
| language | English |
| last_indexed | 2024-03-12T20:27:47Z |
| publishDate | 2018-03-01 |
| publisher | Hindawi - SAGE Publishing |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj.art-e2e1c22c37d94e80973e6c9e6346aecd2023-08-02T00:21:58ZengHindawi - SAGE PublishingInternational Journal of Distributed Sensor Networks1550-14772018-03-011410.1177/1550147718766860Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensorsZiming Xiong0Qinghua Zhang1Hao Lu2Shaoshuai Shi3Zewei You4Yuanpu Xia5Lin Bu6State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, ChinaBeijing Key Laboratory of Urban Spatial Information Engineering, Beijing, ChinaState Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Jinan, ChinaState Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, ChinaState Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing, ChinaGeotechnical and Structural Engineering Research Center, Shandong University, Jinan, ChinaTunnels and subway blast doors are effective barriers to terrorist attacks and emergencies, and research into the mechanical properties of blast doors under explosive dynamic loads can improve and enhance the performance thereof. In this article, surface strain measurements on subway blast door models under dynamic load are carried out using quasi-distributed fibre Bragg grating sensors. The principle underpinning fibre Bragg grating sensing is introduced before the experiment. In the experiment, a model of an explosion-proof door was designed, and the experimental foundation pit was designed to be used to fix the explosion-proof door. Then, eight fibre Bragg grating sensors are placed at different positions on the surface of the explosion door to measure the strain at the time of explosion. Through the experiment we found that the optical fibre grating sensing system can be used under explosive loading surface strain: the strain distribution on the surface of the protective door is revealed under large dynamic strain. At the same time, the rebound effect of the protective door in the explosion was found through the strain phenomenon in double peak phenomenon. The strain distribution and rebound effect in the test results can provide a useful reference for the mechanical design of the blasting door and the strain monitoring of reinforced concrete structures under dynamic load.https://doi.org/10.1177/1550147718766860 |
| spellingShingle | Ziming Xiong Qinghua Zhang Hao Lu Shaoshuai Shi Zewei You Yuanpu Xia Lin Bu Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensors International Journal of Distributed Sensor Networks |
| title | Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensors |
| title_full | Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensors |
| title_fullStr | Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensors |
| title_full_unstemmed | Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensors |
| title_short | Evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre Bragg grating sensors |
| title_sort | evaluation and identification of dynamic strain on a blast door subjected to blast loading using fibre bragg grating sensors |
| url | https://doi.org/10.1177/1550147718766860 |
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