Abstract
In this paper, the effects of viscoelastic characteristics, on the creep-crack growth process are studied through a finite element approach. The general approach of an independent path integral is extended to crack propagation. Afterwards, fracture parameters are computed through a coupling process with an incremental viscoelastic formulation. Finally, numerical examples are presented in order to demonstrate the independence of the integration domain and the possibility of evaluating fracture characteristics which can be energetic (energy release rate) and local in the vicinity of the crack tip (stress and crack opening intensity factors).
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Dubois, F., Chazal, C. & Petit, C. A Finite Element Analysis of Creep-Crack Growth in Viscoelastic Media. Mechanics of Time-Dependent Materials 2, 269–286 (1998). https://doi.org/10.1023/A:1009831400270
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DOI: https://doi.org/10.1023/A:1009831400270