FraMCoS 6 2007 Catania, Italy

Coupling between creep and cracking in tension

An isotropic elastic damage model is extended to taken into account creep failure. It combines a creep model by means of several Kelvin-Voigt chains in serial and the Mazars model, where the equivalent strain threshold includes a part of creep…

First page of: Coupling between creep and cracking in tension
Year 2007
File Size 1.6 MB
Download PDF (1.6 MB)

Abstract

An isotropic elastic damage model is extended to taken into account creep failure. It combines a creep model by means of several Kelvin-Voigt chains in serial and the Mazars model, where the equivalent strain threshold includes a part of creep strain. The model has been implemented in an available finite element code. The implementation is straightforward since all the involved equations are defined explicitly. The pro- posed model is able to reproduce linear visco-elastic strain for low stress levels and also failure caused by ter- tiary creep.