Numerical Modelling of Mode I Linear Viscoelastic Fracture,
BRUNEL UNIV UXBRIDGE (UNITED KINGDOM) INST OF COMPUTATIONAL MATHEMATICS
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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.
- Operations Research