Meso-Scale Simulations of Shock-Loaded Heterogeneous Explosives for Quantification of Sensitivity

Abstract

A framework is presented for uncertainty quantification (UQ) in multi-scale models of shock-to-detonation transition (SDT) of a pressed energetic (HMX) material. The uncertainties are assumed to arise from variabilities in the material properties of HMX which are inputs to a Meso-informed Ignition and Growth (MES-IG) model. The input uncertainties are first used to quantify the variabilities in the hot-spot dynamics at the meso-scale. A Kriging-based Monte-Carlo method is used to construct probability density functions (pdfs) for the meso-scale reaction product formation rates.

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Document Details

Document Type
Technical Report
Publication Date
Mar 07, 2019
Accession Number
AD1085639

Entities

People

  • H. S. Udaykumar
  • Kyung Choi

Organizations

  • University of Iowa

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Kinetics
  • Chemical Reactions
  • Computational Science
  • Dynamics
  • Energetic Materials
  • Explosives
  • Hot Spots
  • Materials
  • Molecular Dynamics
  • Monte Carlo Method
  • Multiscale Models
  • Probability
  • Probability Density Functions
  • Random Variables
  • Rate Of Formation
  • Scale Models
  • Simulations

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Atmospheric Science/Meteorology
  • Rocket Propulsion.