A Scalable Software Plan for the Undersea Warheads' Modeling and Simulation Program.
1997
Emery, Mark H.
The Department of Defense has embarked on an underwater explosion project to couple underwater explosion hydrodynamics with new capabilities in large deformation structural mechanics. In a related effort, DoD has recognized the urgent need of a self-consistent numerical capability for modeling explosion and shock effects in surf zone seafloor sediments with seawater and free air pore fluid, to accelerate the progress of performance prediction of mine countermeasure efforts and for modeling the response of geometrically complex structures buried in sand or soil under blast and shock loads. This report summarizes a research plan which involves the development and implementation of a scalable, fully coupled fluid structure interaction model for simulating the response of geometrically complex structures subjected to unsteady blast and bubble loads stemming from explosions in deep ocean and the surf zone. This multilevel, multiyear plan will couple a scalable, finite difference hydrodynamics code for modeling the generation and evolution of propagating explosive blast waves in a medium (water, partially or fully saturated sand, 'dry' soils, and sands) to a scalable, finite-element structural mechanics code for modeling the response of complex, multidimensional structures to the loads and stresses stemming from the medium.
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