Validation of LS-DYNA MMALE with Blast Experiments

The general multi-material arbitrary Lagrangian-Eulerian (MMALE) solver is available in the finite element ®analysis software LS-DYNA . In the context of blast simulation, this solution approach involves explicit modeling of the explosive, the blast transmission media and the structure subjected to the blast within the MMALE solver. This paper presents a validation study of the LS-DYNA MMALE approach with existing experimental studies of blast wave clearing and blast in an urban environment, as well as numerical results from the finite volume method software Air3d. The overpressure histories, peak overpressures and impulses are compared. It is demonstrated that the results from LS-DYNA produce excellent correlation with experimental and Air3d simulation results. Whilst this is a validation with prior knowledge of the experimental results, it suggests that the LS-DYNA simulation capability is accurate for the cases studied.