Efficient fluid-structure interaction simulation of viscoplastic and fracturing thin-shells subjected to underwater shock loading

Conference · Thu Jan 01 00:00:00 EST 2009

OSTI ID:953656

Deiterding, Ralf ^[1]; Cirak, Fehmi ^[2]; Mauch, Sean P. ^[3]

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1. ORNL
2. University of Cambridge
3. California Institute of Technology, Pasadena

The fluid-structure interaction simulation of shock-loaded thin-walled structures requires numerical methods that can cope with large deformations as well as local topology changes. We present a robust level-set-based approach that integrates a Lagrangian thin-shell finite element solver with fracture and fragmentation capabilities into an Eulerian Cartesian fluid solver with embedded boundary and mesh adaptation capability. As main computational applications, we consider the plastic deformation and rupture of thin plates subjected to explosion and piston-induced pressure waves in water.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 953656
• Resource Relation: Conference: Fluid-Structure Interaction: Theory, Numerics and Applications, Herrsching am Ammersee, Germany, 20080929, 20081001
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DEFORMATION
ELEMENTS
EXPLOSIONS
FLUIDS
FLUID-STRUCTURE INTERACTIONS
FRACTURES
FRACTURING
FRAGMENTATION
LAGRANGIAN FUNCTION
LOADING
PLASTICS
PLATES
RUPTURES
SIMULATION
TOPOLOGY
UNDERWATER
WATER