Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical study on antiknock measures of concrete gravity dam bearing underwater contact blast loading
A concrete gravity dam (CGD) bearing underwater contact blast loading is important to estimate the explosion resistance of CGD. The blast resistant measure on aluminum foam of CGD is proposed by simulating the CGD subjected to underwater contact blast loading in this paper. Taking full advantages of the Euler and Lagrange methods, the Euler-Lagrange coupled method was used to simulate the above situations. Specifically, the Euler method was adopted to simulate explosive, reservoir water, and air. Meanwhile, the Lagrange method was used to simulate the CGD. The Koyna CGD subjected to underwater contact blast loading was simulated. The rules of crack distributions and dynamic responses of the Koyna CGD were studied to propose the arrangement form of the aluminum foam as the antiknock material and analyze the antiknock performance of that. The results show that aluminum foam, as an antiknock material, could effectively reduce the amplitude of the pressure wave and the dynamic response. It has more advantages of reducing horizontal, vertical, and inclined cracks and weakening the water cut effect.
Numerical study on antiknock measures of concrete gravity dam bearing underwater contact blast loading
A concrete gravity dam (CGD) bearing underwater contact blast loading is important to estimate the explosion resistance of CGD. The blast resistant measure on aluminum foam of CGD is proposed by simulating the CGD subjected to underwater contact blast loading in this paper. Taking full advantages of the Euler and Lagrange methods, the Euler-Lagrange coupled method was used to simulate the above situations. Specifically, the Euler method was adopted to simulate explosive, reservoir water, and air. Meanwhile, the Lagrange method was used to simulate the CGD. The Koyna CGD subjected to underwater contact blast loading was simulated. The rules of crack distributions and dynamic responses of the Koyna CGD were studied to propose the arrangement form of the aluminum foam as the antiknock material and analyze the antiknock performance of that. The results show that aluminum foam, as an antiknock material, could effectively reduce the amplitude of the pressure wave and the dynamic response. It has more advantages of reducing horizontal, vertical, and inclined cracks and weakening the water cut effect.
Numerical study on antiknock measures of concrete gravity dam bearing underwater contact blast loading
Xu, Qiang (Autor:in) / Chen, Jianyun (Autor:in) / Li, Jing (Autor:in) / Cao, Yang (Autor:in) / Liu, Xiaopeng (Autor:in) / Yu, Xianzheng (Autor:in) / Cao, Xiangyu (Autor:in)
01.01.2018
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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