Hope College Engineering Department Research Experiences for Undergraduates Summer 2009 Project Summary

In 2008, the Department of Homeland Security performed a series of blast tests using rigid and flexible panels in order to explore the structural response to close in blasts. The data from these experiments was used to validate Finite Element models. Purely Lagrangian models of the test panels were created in LS-DYNA using a conventional weapons solver (ConWep) through the *LOAD_BLAST command. Additionally, Coupled Eulerian-Lagrangian models of each case were created using the Arbitrary Lagrangian Eulerian (ALE) element formulation. These models show similar qualitative blast response to the experimental data. However, these models are still being fine tuned as the magnitude of the deformation in these models does not yet match the experimental results. __________________________________________________________________________________________________________________________
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