EPIC-2, A Computer Program for Elastic - Plastic Impact Computations in 2 Dimensions Plus Spin.

Abstract

A two-dimensional (plus spin) computer program, EPIC-2, is described for impact and explosive detonation problems. The numerical technique is based on a Lagrangian finite element formulation in which the equations of motion are integrated directly rather than through the traditional stiffness matrix approach. Triangular elements are formulated for large strains and displacements, and nonlinear material strength and compressibility effects are included to account for elastic-plastic flow and wave propagation. Instructions for using the program are also included. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA058786

Entities

People

  • Gordon R. Johnson

Organizations

  • Honeywell International, Inc.

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Computer Programs
  • Computer Simulations
  • Dynamic Response
  • Equations
  • Equations Of Motion
  • Explosives
  • Geometry
  • Hydrostatic Pressure
  • Ions
  • Kinetic Energy
  • Materials
  • Mechanics
  • Plastic Flow
  • Shear Stresses
  • Stratified Fluids
  • Tensile Strength
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Explosive Engineering.
  • Structural Dynamics.