Eventos Anais de eventos
MECSOL 2019
7th International Symposium on Solid Mechanics
Phase Field and Fractional Derivatives to Model Damage, Fracture and Fatigue in Viscoelastic Materials
Submission Author:
Thais Clara da Costa Haveroth , SC
Co-Authors:
Thais Clara da Costa Haveroth, Fabiano Fumes, Marco Bittencourt, José Luiz Boldrini
Presenter: Thais Clara da Costa Haveroth
doi://10.26678/ABCM.MECSOL2019.MSL19-0136
Abstract
This work concerns on the development of a formulation based on phase fields theory and fractional derivatives for modeling damage, fracture and fatigue in materials with viscoelastic behavior. Phase field models have been a trend in describing damage, fracture and fatigue due to the regularization of sharp crack surfaces using continuum scalar fields. On the other hand, fractional derivatives are able to model hereditary phenomena with long memory, as in the case of viscoelastic materials subject to stress over time. The coupling of these two theories, fractional derivatives and phase fields, produces a promising and novel framework to predict failure in different materials. A comparison with other formulation found in the literature is presented and some preliminary results are shown
Keywords
Phase-Field Model, fractional derivatives, viscoelastic materials, Damage, Fracture and Fatigue
