In the last few years, several authors have proposed different phase-field models aimed at describing ductile fracture phenomena. Most of these models fall within the class of variational approaches to fracture proposed by Francfort and Marigo [13]. For the case of brittle materials, the key concept due to Griffith consists in viewing crack growth as the result of a competition between bulk elastic energy and surface energy. For ductile materials, however, an additional contribution to the energy dissipation is present, related to plastic deformations. Of crucial importance, for the performance of the modeling approaches, is the way the coupling is realized between plasticity and phase field evolution. Our aim is a critical revision of the main constitutive choices underlying the available models and a comparative study of the resulting predictive capabilities.

Comparison of phase-field models of fracture coupled with plasticity / Alessi, R.; Ambati, M.; Gerasimov, T.; Vidoli, S.; De Lorenzis, L.. - (2018), pp. 1-21. [10.1007/978-3-319-60885-3_1].

Comparison of phase-field models of fracture coupled with plasticity

Alessi, R.;Vidoli, S.;
2018

Abstract

In the last few years, several authors have proposed different phase-field models aimed at describing ductile fracture phenomena. Most of these models fall within the class of variational approaches to fracture proposed by Francfort and Marigo [13]. For the case of brittle materials, the key concept due to Griffith consists in viewing crack growth as the result of a competition between bulk elastic energy and surface energy. For ductile materials, however, an additional contribution to the energy dissipation is present, related to plastic deformations. Of crucial importance, for the performance of the modeling approaches, is the way the coupling is realized between plasticity and phase field evolution. Our aim is a critical revision of the main constitutive choices underlying the available models and a comparative study of the resulting predictive capabilities.
2018
Advances in Computational Plasticity. Computational Methods in Applied Sciences, vol 46
978-3-319-60884-6
978-3-319-60885-3
Computational Mathematics; Modeling and Simulation; Fluid Flow and Transfer Processes; Computer Science Applications1707 Computer Vision and Pattern Recognition; Civil and Structural Engineering; Electrical and Electronic Engineering; Biomedical Engineering
02 Pubblicazione su volume::02a Capitolo, Articolo o Contributo
Comparison of phase-field models of fracture coupled with plasticity / Alessi, R.; Ambati, M.; Gerasimov, T.; Vidoli, S.; De Lorenzis, L.. - (2018), pp. 1-21. [10.1007/978-3-319-60885-3_1].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1115582
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