Energy balance criteria for viscoelastic fracture

Golden, J. M. and Graham, G. A. C. (1987) Energy balance criteria for viscoelastic fracture. (Preprint)

Text DIAS-STP-87-30.pdf Download (1MB)

Abstract

An energy balance criterion of the Griffith type has been used to derive conditions that are valid, in the isothermal non-inertial approximation, for the growth of cracks in viscoelastic bodies. These bodies are acted upon by general position and time-dependent load. The conditions obtained have the same form as the instability conditions obtained for the corresponding problems in elasticity theory and, in particular are independent of crack velocity. The analysis relies upon an exact calculation of the displacement and stress fields that is derived in the appendix with the aid of extensions to viscoelasticity of the Kolosov-Muskhelishvili equations of elasticity theory.

Item Type:	Article
Divisions:	School of Theoretical Physics > Preprints
Date Deposited:	20 Jun 2018 11:13
Last Modified:	21 Dec 2022 03:14
URI:	https://dair.dias.ie/id/eprint/821

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