Numerical Modelling of Mode I Linear Viscoelastic Fracture,

Abstract

Numerical schemes, based on finite elements in space and finite differences in time, are outlined for modelling stationary and moving cracks in two-dimensional linear viscoelastic materials. The mathematical formulation involves a linear single time integral constitutive model for the viscoelastic behaviour, together with the inclusion of a Barenblatt failure zone in the vicinity of the crack tip. Crack propagation and subsequent motion is based upon a crack opening displacement criterion (COD).

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1992
Accession Number
ADP006595

Entities

People

  • J. R. Walton
  • J. R. Whiteman
  • M. K. Warby

Organizations

  • Brunel University London

Tags

DTIC Thesaurus Topics

  • Applied Mathematics
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Displacement
  • Geometry
  • Inclusions
  • Integrals
  • Materials
  • Mathematics
  • Minnesota
  • Physical Properties
  • Stationary
  • Two Dimensional

Fields of Study

  • Engineering
  • Mathematics

Readers

  • Materials Science (Mechanical Engineering).
  • Structural Dynamics.

Technology Areas

  • Space