A PRACTICAL MODEL OF THREE-DIMENSIONAL VISCOELASTOPLASTICITY,

Abstract

A practical three-dimensional viscoelastoplastic constitutive law is developed. It is applicable to interior points as well as to boundary points where certain of the stress components may be prescribed by boundary conditions. The calculational procedure is suitable for direct inclusion into finite difference codes and has been incorporated into the GENERAL code. Numerical results are presented. For missile structural lethality and vulnerability problems, material damping tends to result in three-dimensional response decaying to two dimensional shell-like response after only a few skin thickness transits. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 12, 1969
Accession Number
AD0699835

Entities

People

  • Joseph A. Fromme

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Geometry
  • Inclusions
  • Lethality
  • Materials
  • Mathematics
  • Physical Properties
  • Sizes (Dimensions)
  • Thickness
  • Three Dimensional
  • Two Dimensional

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Nuclear and Radiation Engineering.
  • Structural Dynamics.