Large-Scale Fluid-Structure Interaction Simulation of Viscoplastic and Fracturing Thin Shells Subjected to Shocks and Detonations
- ORNL
The fluid-structure interaction simulation of shock- and detonation-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 and an Eulerian Cartesian fluid solver with optional dynamic mesh adaptation. As computational applications, we consider the plastic deformation of a copper plate impacted by a strong piston-induced pressure wave inside a water pipe and the induction of large plastic deformations and rupture of thin aluminum tubes due to the passage of ethylene-oxygen detonations.
- 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:
- 931478
- Journal Information:
- Computers & Structures, Vol. 85, Issue 11-14
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FLUID-STRUCTURE INTERACTIONS
FRACTURING
LAGRANGIAN FUNCTION
COMPUTERIZED SIMULATION
SHELLS
SHOCK WAVES
FINITE ELEMENT METHOD
PLASTICITY
VISCOSITY
COPPER
PLATES
ALUMINIUM
TUBES
fluid-structure interaction
thin shells
detonations
water hammer
large deformations
fracture
dynamic mesh adaptation
parallelization