Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions
© 2019 Elsevier Ltd A total of nine full-scale field blast tests were conducted in a specially designed reinforced concrete (RC) chamber to investigate the performance of carbon fiber reinforced polymer (CFRP) strip strengthened clay brick masonry walls subjected to vented gas explosions. Three wall...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
PERGAMON-ELSEVIER SCIENCE LTD
2019
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| Online Access: | http://purl.org/au-research/grants/arc/LP150100259 http://hdl.handle.net/20.500.11937/91672 |
| _version_ | 1848765574834814976 |
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| author | Li, Zhan Chen, L. Fang, Q. Chen, Wensu Hao, Hong Zhu, R. Zheng, K. |
| author_facet | Li, Zhan Chen, L. Fang, Q. Chen, Wensu Hao, Hong Zhu, R. Zheng, K. |
| author_sort | Li, Zhan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 Elsevier Ltd A total of nine full-scale field blast tests were conducted in a specially designed reinforced concrete (RC) chamber to investigate the performance of carbon fiber reinforced polymer (CFRP) strip strengthened clay brick masonry walls subjected to vented gas explosions. Three wall specimens, i.e. unstrengthened, strengthened with distributed layout and strengthened with concentrated layout were prepared for blast tests. The testing data including overpressure time histories of vented gas explosions, displacement time histories, damage modes of each wall specimen were recorded and analyzed. It was found that under vented gas explosions, the wall specimen strengthened with concentrated layout showed improved blast resistance and all three wall specimens experienced typical flexural damage. Detailed micro models for masonry walls were developed in LS-DYNA, incorporating material parameters obtained from material tests. The accuracy of numerical models in predicting the responses of masonry walls was validated with the testing data. Parametric studies were conducted to explore the performances of masonry walls with different heights and thicknesses under blast loads specified by design codes. It was found that with the increase of wall thickness or the decrease of wall height, the maximum displacement and damage level of masonry walls decreased significantly. The 115 mm-thick masonry walls needed be strengthened to prevent collapse under the specified blast loads. The strengthened walls experienced typical flexural response and the strengthening effectiveness of using CFRP, GFRP and spray-on polyurea were numerically compared. |
| first_indexed | 2025-11-14T11:37:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-91672 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:25Z |
| publishDate | 2019 |
| publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-916722023-05-23T07:55:15Z Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions Li, Zhan Chen, L. Fang, Q. Chen, Wensu Hao, Hong Zhu, R. Zheng, K. Science & Technology Technology Engineering, Mechanical Mechanics Engineering Clay brick Masonry wall CFRP strip Vented gas explosion Field test Numerical simulation OF-PLANE BEHAVIOR BLAST RESISTANCE CONCRETE MECHANISMS PRESSURE CAPACITY DAMAGE LOAD © 2019 Elsevier Ltd A total of nine full-scale field blast tests were conducted in a specially designed reinforced concrete (RC) chamber to investigate the performance of carbon fiber reinforced polymer (CFRP) strip strengthened clay brick masonry walls subjected to vented gas explosions. Three wall specimens, i.e. unstrengthened, strengthened with distributed layout and strengthened with concentrated layout were prepared for blast tests. The testing data including overpressure time histories of vented gas explosions, displacement time histories, damage modes of each wall specimen were recorded and analyzed. It was found that under vented gas explosions, the wall specimen strengthened with concentrated layout showed improved blast resistance and all three wall specimens experienced typical flexural damage. Detailed micro models for masonry walls were developed in LS-DYNA, incorporating material parameters obtained from material tests. The accuracy of numerical models in predicting the responses of masonry walls was validated with the testing data. Parametric studies were conducted to explore the performances of masonry walls with different heights and thicknesses under blast loads specified by design codes. It was found that with the increase of wall thickness or the decrease of wall height, the maximum displacement and damage level of masonry walls decreased significantly. The 115 mm-thick masonry walls needed be strengthened to prevent collapse under the specified blast loads. The strengthened walls experienced typical flexural response and the strengthening effectiveness of using CFRP, GFRP and spray-on polyurea were numerically compared. 2019 Journal Article http://hdl.handle.net/20.500.11937/91672 10.1016/j.ijimpeng.2019.02.013 English http://purl.org/au-research/grants/arc/LP150100259 PERGAMON-ELSEVIER SCIENCE LTD fulltext |
| spellingShingle | Science & Technology Technology Engineering, Mechanical Mechanics Engineering Clay brick Masonry wall CFRP strip Vented gas explosion Field test Numerical simulation OF-PLANE BEHAVIOR BLAST RESISTANCE CONCRETE MECHANISMS PRESSURE CAPACITY DAMAGE LOAD Li, Zhan Chen, L. Fang, Q. Chen, Wensu Hao, Hong Zhu, R. Zheng, K. Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions |
| title | Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions |
| title_full | Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions |
| title_fullStr | Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions |
| title_full_unstemmed | Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions |
| title_short | Experimental and numerical study on CFRP strip strengthened clay brick masonry walls subjected to vented gas explosions |
| title_sort | experimental and numerical study on cfrp strip strengthened clay brick masonry walls subjected to vented gas explosions |
| topic | Science & Technology Technology Engineering, Mechanical Mechanics Engineering Clay brick Masonry wall CFRP strip Vented gas explosion Field test Numerical simulation OF-PLANE BEHAVIOR BLAST RESISTANCE CONCRETE MECHANISMS PRESSURE CAPACITY DAMAGE LOAD |
| url | http://purl.org/au-research/grants/arc/LP150100259 http://hdl.handle.net/20.500.11937/91672 |