Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading Rates
Concrete materials are important in infrastructure and national defence construction. These materials inevitably bear complicated loads, which include static load, high temperature, and high strain rate. Therefore, the dynamic responses and fragmentation of concrete under high temperatures and loadi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
2019-01-01
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| Series: | Tehnički Vjesnik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/322639 |
| _version_ | 1827282721792065536 |
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| author | Yue Zhai Yi Liu Yubai Li Yan Li Yunmei Shi Ki-Il Song |
| author_facet | Yue Zhai Yi Liu Yubai Li Yan Li Yunmei Shi Ki-Il Song |
| author_sort | Yue Zhai |
| collection | DOAJ |
| description | Concrete materials are important in infrastructure and national defence construction. These materials inevitably bear complicated loads, which include static load, high temperature, and high strain rate. Therefore, the dynamic responses and fragmentation of concrete under high temperatures and loading rates should be investigated. However, the compressive properties of rock materials under ultrahigh loading rates (>20 m/s) are difficult to investigate using the split Hopkinson pressure bar. Impact compression tests were conducted on concrete specimens processed at different temperatures (20-800 °C) under three loading rates in this study to discuss the variation law of the impact compression strength of concrete materials after high-temperature treatment. On this basis, numerical simulation was conducted on impact compression test under all feasible loading rates (10-110 m/s). The results demonstrate that the peak stress of all concrete specimens increases linearly with loading rate before 21 m/s and gradually decreases after 21 m/s. Peak stress shows an inverted V-shaped variation law. Moreover, the temperature-induced weakening effect exceeds the strengthening effect caused by loading rate with the increase in temperature. The growth of peak stress decreases considerably, especially under an ultrahigh loading rate (>50 m/s). These conclusions can provide theoretical references for the design of the ultimate strength of concrete materials for practical applications, such as fire and explosion prevention. |
| first_indexed | 2024-04-24T09:22:56Z |
| format | Article |
| id | doaj.art-cefde15586df48b89713e551495ccf5c |
| institution | Directory Open Access Journal |
| issn | 1330-3651 1848-6339 |
| language | English |
| last_indexed | 2024-04-24T09:22:56Z |
| publishDate | 2019-01-01 |
| publisher | Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek |
| record_format | Article |
| series | Tehnički Vjesnik |
| spelling | doaj.art-cefde15586df48b89713e551495ccf5c2024-04-15T15:35:13ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392019-01-0126374375110.17559/TV-20190222023338Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading RatesYue Zhai0Yi Liu1Yubai Li2Yan Li3Yunmei Shi4Ki-Il Song5School of Geology Engineering and Geomatics, Chang’an University, Room 311, No. 126 Yanta Road, No. 5 Teaching Building, 710064 Xi’an, Shaanxi Province, ChinaSchool of Geology Engineering and Geomatics, Chang’an University, Room 311, No. 126 Yanta Road, No. 5 Teaching Building, 710064 Xi’an, Shaanxi Province, ChinaSchool of Earth Sciences and Resources, China University of Geosciences, Room 630, No. 29 Xueyuan Road, Yifu Building, 100086 Beijing, ChinaSchool of Geology Engineering and Geomatics, Chang’an University, Room 311, No. 126 Yanta Road, No. 5 Teaching Building, 710064 Xi’an, Shaanxi Province, ChinaSchool of Geology Engineering and Geomatics, Chang’an University, Room 311, No. 126 Yanta Road, No. 5 Teaching Building, 710064 Xi’an, Shaanxi Province, ChinaDepartment of Civil Engineering, Inha University, 100 Inha-ro, Nam-gu, 22002 Incheon, South KoreaConcrete materials are important in infrastructure and national defence construction. These materials inevitably bear complicated loads, which include static load, high temperature, and high strain rate. Therefore, the dynamic responses and fragmentation of concrete under high temperatures and loading rates should be investigated. However, the compressive properties of rock materials under ultrahigh loading rates (>20 m/s) are difficult to investigate using the split Hopkinson pressure bar. Impact compression tests were conducted on concrete specimens processed at different temperatures (20-800 °C) under three loading rates in this study to discuss the variation law of the impact compression strength of concrete materials after high-temperature treatment. On this basis, numerical simulation was conducted on impact compression test under all feasible loading rates (10-110 m/s). The results demonstrate that the peak stress of all concrete specimens increases linearly with loading rate before 21 m/s and gradually decreases after 21 m/s. Peak stress shows an inverted V-shaped variation law. Moreover, the temperature-induced weakening effect exceeds the strengthening effect caused by loading rate with the increase in temperature. The growth of peak stress decreases considerably, especially under an ultrahigh loading rate (>50 m/s). These conclusions can provide theoretical references for the design of the ultimate strength of concrete materials for practical applications, such as fire and explosion prevention.https://hrcak.srce.hr/file/322639concretehigh loading ratenumerical simulationSHPBthermal treatment |
| spellingShingle | Yue Zhai Yi Liu Yubai Li Yan Li Yunmei Shi Ki-Il Song Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading Rates Tehnički Vjesnik concrete high loading rate numerical simulation SHPB thermal treatment |
| title | Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading Rates |
| title_full | Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading Rates |
| title_fullStr | Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading Rates |
| title_full_unstemmed | Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading Rates |
| title_short | Impact Compression Test on Concrete after High-Temperature Treatment and Numerical Simulation of All Feasible Loading Rates |
| title_sort | impact compression test on concrete after high temperature treatment and numerical simulation of all feasible loading rates |
| topic | concrete high loading rate numerical simulation SHPB thermal treatment |
| url | https://hrcak.srce.hr/file/322639 |
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