Constitutive Model for Rapidly Damaged Structural Materials. II. Finite Element Formulation.

Abstract

A constitutive model was recently proposed to describe flow and damage in rapidly loaded structural materials. Its finite element implementation is given in the present work, with numerical results to be reported in a subsequent work. One important feature is that the finite element formulation is 'consistent' in that the damage and flow strains are approximated in the same was as the corresponding parts of the total strain. A second important feature is that certain interelement continuity conditions are imposed in the flow and damage strains. A system of ordinary differential equations in time is obtained for the nodal displacement, flow and damage parameters. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 25, 1980
Accession Number
ADA090323

Entities

People

  • David W. Nicholson

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Constitutive Equations
  • Continuity
  • Differential Equations
  • Displacement
  • Elastic Properties
  • Elements
  • Equations
  • Finite Element Analysis
  • Materials
  • New York
  • Notation
  • Plastic Properties
  • Pressure Hulls
  • Submarine Hulls
  • Technical Information Centers
  • Triangles

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Health Monitoring of Composite Structures.