Title: Modelling and analysis of arch dam withstand underwater explosion

Authors: Feng Zhu; Weihua Zhu; Da Fei; J.L. Yan; Xue Song Xu; Xin Chen; Jia Jun Zhuo

Addresses: College of Science & College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing city, Jiangsu Province, 210098, China ' College of Science & College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing city, Jiangsu Province, 210098, China ' College of Science & College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing city, Jiangsu Province, 210098, China ' College of Science & College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing city, Jiangsu Province, 210098, China ' College of Science & College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing city, Jiangsu Province, 210098, China ' College of Science & College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing city, Jiangsu Province, 210098, China ' College of Science & College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing city, Jiangsu Province, 210098, China

Abstract: 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.

Keywords: LS-DYNA; explosives; arch dams; finite difference; finite element method; dynamic FEM; explosion blasts; displacement curves; acceleration curves; shock waves; underwater explosions.

DOI: 10.1504/IJCAT.2013.056923

International Journal of Computer Applications in Technology, 2013 Vol.48 No.3, pp.272 - 280

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 01 Oct 2013 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article