Coupling Between CTH and LS-DYNA for Thermal Postprocessing: Application to Propellant Cookoff From a Residual Penetrator

Abstract

A procedure was developed for performing a postprocessing heat conduction analysis from a CTH solution for a residual penetrator's shape and temperature field. LS-DYNA was employed for the heat conduction analysis. The interface between CTH and LS-DYNA involved the codes EnSight and HyperMesh. The procedure was applied to perforation of a titanium plate by a steel right circular cylinder at 433 m/s, followed by cookoff of an M30A1 grain by contact with the hot steel residual. The temperature field as a function of time within the M30A1 grain was compared with published data for initiation time as a function of temperature. In an appendix, an analytical solution for heat conduction between two semi-infinite layers is used to assess mesh adequacy in the residual-propellant simulation.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2006
Accession Number
ADA457434

Entities

People

  • Huber W. Meyer Jr.
  • Jerry A. Clarke
  • Martin N. Raftenberg

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Couplings
  • Elements
  • Equations
  • Heat Flux
  • Heat Transfer
  • Materials
  • Military Research
  • Perforation
  • Propellant Grains
  • Propellants
  • Residuals
  • Simulations
  • Specific Heat
  • Thermal Conductivity
  • Thermal Diffusivity
  • Titanium

Fields of Study

  • Materials science

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.
  • Rocket Propulsion.