Accession Number:

ADP006595

Title:

Numerical Modelling of Mode I Linear Viscoelastic Fracture,

Descriptive Note:

Corporate Author:

BRUNEL UNIV UXBRIDGE (UNITED KINGDOM) INST OF COMPUTATIONAL MATHEMATICS

Report Date:

1992-03-01

Pagination or Media Count:

9.0

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.

Subject Categories:

  • Mechanics
  • Operations Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE