The purpose of this paper is to study and compare two finite element coupling methods to simulate the problem of a body penetrating a free surface. The hydrodynamic impact problem concerns industrial designers in shipbuilding domain. In rough seas, sometimes ships suffer local damages from large water impact loads called slamming impacts. In the framework of a collaboration with a french research company in shipbuilding (Principia Marine) a numerical prediction of the local impulse load on a wedge striking a free surface is investigated by using two methods: penalty and Lagrange multiplier formulations. These methods of coupling, which makes it possible to transmit the efforts in pressure from the Eulerian formulation to the Lagrangian formulation and conversely are relatively recent algorithmic developments. The Euler/Lagrange penalty method was successfully used in many scientific and industrial applications: the modeling of the attack of birds on the fuselage of a Jet for the Boeing Corporation, the underwater explosion shaking the oil platforms, the airbag simulation... The explicit coupling based on multiplier approach is a new development, which is compared to the penalty method. For both methods, a parametric study of the local pressure peak is investigated for impact angles from 0 to 30 degrees.
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ASME 2005 Pressure Vessels and Piping Conference
July 17–21, 2005
Denver, Colorado, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4189-8
PROCEEDINGS PAPER
Explicit Coupling Methods in Hydrodynamic Impacts
N. Aquelet,
N. Aquelet
Universite´ des Sciences et Technologies de Lille, Villeneuve d’Ascq, France
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M. Souli
M. Souli
Universite´ des Sciences et Technologies de Lille, Villeneuve d’Ascq, France
Search for other works by this author on:
N. Aquelet
Universite´ des Sciences et Technologies de Lille, Villeneuve d’Ascq, France
M. Souli
Universite´ des Sciences et Technologies de Lille, Villeneuve d’Ascq, France
Paper No:
PVP2005-71656, pp. 257-266; 10 pages
Published Online:
July 29, 2008
Citation
Aquelet, N, & Souli, M. "Explicit Coupling Methods in Hydrodynamic Impacts." Proceedings of the ASME 2005 Pressure Vessels and Piping Conference. Volume 4: Fluid Structure Interaction. Denver, Colorado, USA. July 17–21, 2005. pp. 257-266. ASME. https://doi.org/10.1115/PVP2005-71656
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