Modelling and analysis of arch dam withstand underwater explosion

Based on the software LS-DYNA-970, centred finite difference finite element method, this paper focuses on analysing the physical processes of an explosion blast in water and the response of the arch dam. As the processes are complicated, a dynamic finite element model was developed. The calculation gives the displacement and the acceleration time-history curves of important points. The results show that, under the shock waves of underwater explosion, the response of arch dam in horizontal way is much larger than in the vertical way. The degree of response depends on the distance of the point and the centre point of explosion.

[1]  Sergio Hamilton Sphaier,et al.  On the safety of offloading operation in the oil industry , 2012, Int. J. Comput. Appl. Technol..

[2]  William Algaard,et al.  Perforation of Composite Floors , 2005 .

[3]  Kazuo Nishimoto,et al.  Development of a concept of mono-column platform: MONOBR , 2012, Int. J. Comput. Appl. Technol..

[4]  Yi Chen,et al.  Reinforced concrete members under drop-weight impacts , 2009 .

[5]  A. Zhu-Feng,et al.  Numerical simulation of local response of ship in underwater explosive shock , 2011, Proceedings of 2011 International Conference on Modelling, Identification and Control.

[6]  Li Jian.  Numerical Simulation of Adiabatic Shear Localization in Truncated-conic Specimens of Tungsten Heavy Alloys Under Impact Loading , 2002 .

[7]  Yi Chen,et al.  Perforation owing to impacts on reinforced concrete slabs , 2009 .

[8]  Theodoro A. Netto,et al.  On the structural integrity of damaged columns of semi-submersible platforms , 2012, Int. J. Comput. Appl. Technol..

[9]  Y. Feng,et al.  Reinforced concrete beams under drop-weight impact loads , 2006 .

[10]  Xuanhui Qu,et al.  TENSILE BEHAVIOR CHANGE DEPENDING ON THE VARYING TUNGSTEN CONTENT OF W-NI-FE ALLOYS , 2007 .

[11]  A. Zhu-Feng,et al.  Numerical simulation of ellipsoid shaped charge penetrating concrete , 2011, Proceedings of 2011 International Conference on Modelling, Identification and Control.

[12]  Sergey G. Psakhie,et al.  Movable cellular automata method for simulating materials with mesostructure , 2001 .

[13]  Cai Hongnian.  Study on new type of tungsten alloy for penetrator , 2007 .

[14]  Segen F. Estefen,et al.  Floating protection system for FPSO , 2012, Int. J. Comput. Appl. Technol..