ONR MURI Project on Soil Blast Modeling and Simulation Conference Proceeding uri icon

Overview

abstract

  • Current computational modeling methods for simulating blast and ejecta in soils resulting from the detonation of buried explosives rely heavily on continuum approaches such as Arbitrary Lagrangian-Eulerian (ALE) and pure Eulerian shock-physics techniques. These methods approximate the soil as a Lagrangian solid continuum when deforming (but not flowing) or an Eulerian non-Newtonian fluid continuum when deforming and flowing at high strain rates. These two extremes do not properly account for the transition from solid to fluid-like behavior and vice versa in soil, nor properly address advection of internal state variables and fabric tensors in the Eulerian approaches. To address these deficiencies on the modeling side, we are developing a multiscale multiphase hybrid Lagrangian particle-continuum computational approach, in conjunction with coordinated laboratory experiments for parameter calibration and model validation. This paper provides an overview of the research approach and current progress for this Office of Naval Research (ONR) Multidisciplinary University Research Initiative (MURI) project.

publication date

  • January 1, 2014

Full Author List

  • Regueiro R; Pak R; McCartney J; STURE S; Yan B; Duan Z; Svoboda J; Mun W; Vasilyev O; Kasimov N

Other Profiles

International Standard Book Number (ISBN) 13

  • 9783319007717