This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Shock Wave Impact Simulations Using Fluid/Structure/Dynamics Interactions
Technical Paper
2011-01-0258
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Ground vehicle subjecting to a blast can sustain vehicle damages and occupant injuries. Direct blast thermal and force loadings compromise vehicle structural integrity and cause damages. Computer simulations of vehicle blast wave damages can be obtained by solving the gas dynamics of the blast wave and the structural dynamics of the vehicle, through a projection of the wave's impact on the vehicle structure. There are various possible ways that the blast can cause injuries to the vehicle occupants, such as direct collision with objects instantly accelerated by the blast pressure and impact by the secondary shock waves transmitted through the platform structure. This paper describes a parallel computer simulation methodology that can potentially be applied to predict the structure damage and the associated occupant kinematics during a blast event by solving the multi-physics problem of fluid dynamics, solid dynamics, and multi-body dynamics. A generic box model was used in the demonstration of this newly-developed methodology. The generic land system structure consists of a box representing a vehicle armor structure, and a rigid body system representing a crew member in a ground vehicle. The outside generic structure is modeled as a deformable component. The shock wave generated by a blast impacts the outside structure and the gas dynamics of the shock wave propagation is solved by an Eulerian finite volume method with a block structured, adaptive mesh refinement and immerse boundary method in the Cartesian coordinate. The thin-shell structure solver computes the large deformation of thin surface-like solids. To discretize the thin shell, subdivison finite elements based on Loop's schemes are used. A numerical solver for the six-degree of freedom equations of motion has been developed using Newton's second law and solved numerically by using a Runge-Kutta method, providing time-accurate simulations of body motion. Simulations, using multiple computer processors, of the outer box deformation and the motion of the inner box due to the shock wave transmitted through the deformed wall will be presented in this paper. Simulation results for cases ranging from free air blast to blast over a hemispherical dome are also reported.
Authors
Topic
Citation
Yang, Y., Liou, W., Sheng, J., Gorsich, D. et al., "Shock Wave Impact Simulations Using Fluid/Structure/Dynamics Interactions," SAE Technical Paper 2011-01-0258, 2011, https://doi.org/10.4271/2011-01-0258.Also In
References
- Fickett, Wildon Davis, William C. Detonation University of California Press 1979
- Langrand, B. Deletombe, E. Charles, J. L. Sobry, J. F. Martin, S. Chazal, H. Armored vehicles subject to mine explosions an analysis method for operationability and survivability Journal de Physique IV 110 621 626 September 2003
- Lee, E. Finger, M. Collins, W. JWL equation of state coefficients for high explosives, report Lawrence Livermore Laboratory January 1973
- Ling, Geoffrey Bandak, Faris Armonda, Rocco Grant, Gerald Ecklund, James Explosive blast neurotrauma Journal of Neurotrauma 815 11 June 2009
- Rajendran, R. Lee, J. M. Blast loaded plates Marine Structures 2008
- Zhou, X. Q. Hao, H. Prediction of airblast loads on structures behind a protective barrier International Journal of Impact Engineering 35 363 375 2008
- Jacinto, Abel Carlos Ambrosini, Ricardo Daniel Danesi, Rodolfo Francisco Experimental and computational analysis of plates under air blast loading International Journal of Impact Engineering 25 927 947 2001
- Tai, Changhsien Teng, Jyhtong Lo, Shiwei Liu, Chiawei A numerical study in the interaction of blast wave with a wheeled armored vehicle International Journal of Vehicle Design 45 1/2 242 262 2007
- Deiterding, Ralf Cirak, Fehmi Mauch, Sean P. Meiron, Daniel I. A Virtual Test Facility for Simulating Detonation-Induced Fracture of Thin Flexible Shells, volume 3992/2006 of Lecture Notes in Computer Science Springer 2006
- Berger, M. Colella, P. Local adaptive mesh refinement for shock hydrodynamics J. Comput. Phys. 82 64 84 1988
- Cirak, F. Ortiz, M. Schroder, P. Subdivision surface: a new paradigm for thin-shell finite element analysis International Journal for Numerical Methods in Engineering 47 2039 2072 2000
- Loop, C. T. Smooth subdivision surface based on triangles Master's thesis The University of Utah August 1987
- Timothy Rose, A. Air3D version 9 users' guide Feb. 22 2006
- Radovitzky, R. Noels, L Dharmasena, K. Wadley, H. Air Shock Loading of Metallic Plates: Experiments and Coupled Simulations International Journal of Solids and Structures 2010
- Smart, E. Howard Advanced Dynamics II Dynamics of a Solid Body MacMillen and Co. 1951