4 papers
Gamma convergence for a phase-field cohesive energy
Eleonora Maggiorelli, Matteo Negri, Francesco Vicentini +1
Reproducing the key features of fracture behavior under multiaxial stress states is essential for accurate modeling. Experimental evidence indicates that three intrinsic material p…
A free boundary approach to the quasistatic evolution of debonding models
Eleonora Maggiorelli, Filippo Riva, Edoardo Giovanni Tolotti
The mechanical process of progressively debonding an adhesive membrane from a substrate is described as a quasistatic variational evolution of sets and herein investigated. Existen…
Energy release and Griffith's criterion for phase-field fracture
Eleonora Maggiorelli, Matteo Negri
Phase field evolutions are obtained by means of time discrete schemes, providing (or selecting) at each time step an equilibrium configuration of the system, which is usually compu…
AT1 fourth-order isogeometric phase-field modeling of brittle fracture
Luigi Greco, Eleonora Maggiorelli, Matteo Negri +2
A crucial aspect in phase-field modeling, based on the variational formulation of brittle fracture, is the accurate representation of how the fracture surface energy is dissipated…