A New Boundary Treatment for Analyzing Dynamic Structure-Medium Interaction.

Abstract

A new and comprehensive non-reflecting boundary treatment has been developed for use in numerical analyses of structure-medium interaction. The method relies only on Newton's laws of motion and on the general mathematical identities which apply to all wave propagation phenomena. It therefore applies for all materials regardless of their constitutive behavior and for arbitrary geometric changes (finite deformation). The method has been implemented in a number of codes and is being successfully used' for several different classes of analysis. The verification of the method requires a series of computations. This paper described these numerical analyses and also provides a description of the fundamental equations underlying the new technique. (MM)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1995
Accession Number
ADA302249

Entities

People

  • Ivan S. Sandler

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Computations
  • Dynamic Response
  • Electric Fields
  • Electromagnetic Fields
  • Equations
  • Free Field
  • Frequency
  • Geometry
  • Materials
  • Mechanical Waves
  • Military Research
  • Numerical Analysis
  • Plane Waves
  • Shock Waves
  • Wave Propagation

Readers

  • Computational Fluid Dynamics (CFD)
  • Theoretical Analysis.