Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load
The shock response and dynamic fracture of concrete gravity dams under impact load are the key problems to evaluate the antiknock safety of the dam. This study aims at understanding the effects of impact shock on the elastic response and dynamic fracture of concrete gravity dams. Firstly, this paper...
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| Format: | Article |
| Language: | English |
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Universidad Nacional de Colombia
2016-01-01
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| Series: | Earth Sciences Research Journal |
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| Online Access: | https://revistas.unal.edu.co/index.php/esrj/article/view/54133 |
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| author | Lu Lu Xin Li Jing Zhou Genda Chen Dong Yun |
| author_facet | Lu Lu Xin Li Jing Zhou Genda Chen Dong Yun |
| author_sort | Lu Lu |
| collection | DOAJ |
| description | The shock response and dynamic fracture of concrete gravity dams under impact load are the key problems to evaluate the antiknock safety of the dam. This study aims at understanding the effects of impact shock on the elastic response and dynamic fracture of concrete gravity dams. Firstly, this paper uses acceleration records of a concrete gravity dam under impact to establish the correct way to determine the concrete gravity dam of the fundamental frequency and present cut sheets multi-degree-of-freedom dynamic modeling. Under strong impact loading, the constitutive relation of concrete gravity dam and the highest frequency of the impact are uncertain. So, the main advantage of this method is avoiding the use of elastic modulus in the calculation. The result indicates that the calculation method is a reliable computational method for concrete gravity dams subjected to impact. Subsequently, the failure process of dam models was numerically simulated based on ABAQUS commercial codes. Finally, this paper puts forward suggestions for future research based on the results of the analysis. |
| format | Article |
| id | doaj-art-094cbdec6c9b4f82a68fa343a62410a6 |
| institution | OA Journals |
| issn | 1794-6190 2339-3459 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Universidad Nacional de Colombia |
| record_format | Article |
| series | Earth Sciences Research Journal |
| spelling | doaj-art-094cbdec6c9b4f82a68fa343a62410a62025-08-20T02:19:15ZengUniversidad Nacional de ColombiaEarth Sciences Research Journal1794-61902339-34592016-01-0120110.15446/esrj.v20n1.5413343065Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact LoadLu Lu0Xin Li1Jing Zhou2Genda Chen3Dong Yun4Faculty of management Engineering, Huaiyin Institute of Technology, Huai’an 223001, ChinaThe State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 110623, ChinaThe State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 110623, ChinaThe Center for Infrastructure Engineering Studies, Missouri University of Science and Technology, Rolla, Missouri 65401, USAFaculty of management Engineering, Huaiyin Institute of Technology, Huai’an 223001, ChinaThe shock response and dynamic fracture of concrete gravity dams under impact load are the key problems to evaluate the antiknock safety of the dam. This study aims at understanding the effects of impact shock on the elastic response and dynamic fracture of concrete gravity dams. Firstly, this paper uses acceleration records of a concrete gravity dam under impact to establish the correct way to determine the concrete gravity dam of the fundamental frequency and present cut sheets multi-degree-of-freedom dynamic modeling. Under strong impact loading, the constitutive relation of concrete gravity dam and the highest frequency of the impact are uncertain. So, the main advantage of this method is avoiding the use of elastic modulus in the calculation. The result indicates that the calculation method is a reliable computational method for concrete gravity dams subjected to impact. Subsequently, the failure process of dam models was numerically simulated based on ABAQUS commercial codes. Finally, this paper puts forward suggestions for future research based on the results of the analysis.https://revistas.unal.edu.co/index.php/esrj/article/view/54133ReservoirGravity damUnderwater explosionFailure modeDynamic analysis. |
| spellingShingle | Lu Lu Xin Li Jing Zhou Genda Chen Dong Yun Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load Earth Sciences Research Journal Reservoir Gravity dam Underwater explosion Failure mode Dynamic analysis. |
| title | Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load |
| title_full | Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load |
| title_fullStr | Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load |
| title_full_unstemmed | Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load |
| title_short | Numerical Simulation of Shock Response and Dynamic Fracture of a Concrete Dam Subjected to Impact Load |
| title_sort | numerical simulation of shock response and dynamic fracture of a concrete dam subjected to impact load |
| topic | Reservoir Gravity dam Underwater explosion Failure mode Dynamic analysis. |
| url | https://revistas.unal.edu.co/index.php/esrj/article/view/54133 |
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