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ALEGRA: Finite element modeling for shock hydrodynamics and multiphysics

International Journal of Impact Engineering

Niederhaus, John H.; Bova, S.W.; Carleton, James B.; Carpenter, John H.; Cochrane, Kyle C.; Crockatt, Michael M.; Dong, Wen D.; Fuller, Timothy J.; Granzow, Brian N.; Ibanez-Granados, Daniel A.; Kennon, Stephen; Luchini, Christopher B.; Moral, Ramon; O'Brien, Christopher J.; Powell, Michael P.; Robinson, Allen C.; Rodriguez, Angel E.; Sanchez, Jason J.; Scott, Walter A.; Siefert, Christopher S.; Stagg, Alan K.; Kalashnikova, Irina; Voth, Thomas E.; Wilkes, John

ALEGRA is a multiphysics finite-element shock hydrodynamics code, under development at Sandia National Laboratories since 1990. Fully coupled multiphysics capabilities include transient magnetics, magnetohydrodynamics, electromechanics, and radiation transport. Importantly, ALEGRA is used to study hypervelocity impact, pulsed power devices, and radiation effects. The breadth of physics represented in ALEGRA is outlined here, along with simulated results for a selected hypervelocity impact experiment.

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TYPE Journal Article YEAR 2023

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