Giovedi' 23 maggio 2019, alle ore 15 precise, presso l'aula Beltrami
del Dipartimento di Matematica di Pavia il
T. Roubicek, Charles University, Prague
terrà un seminario dal titolo:
"Dynamical damage and phase-field fracture models"
nell'ambito del Seminario di Matematica Applicata (IMATI-CNR e
Dipartimento di Matematica, Pavia),
Abstract: Damage is a phenomenon/concept in continuum mechanics of
solid materials undergoing various degradation processes with numerous
applications in engineering and in computational mechanics and (e.g.
geo) physics. Combination with inertial effects may be important
modelling issue to prevent various undesired effects otherwise
occuring in quasistatic models and also to capture phenomena of
vibrations or wave emission and propagation. Various damage models and
their variants as a phase-field fracture will be overviewed. Also,
several numerical approaches will be presented, amenable to compute
vibrations or waves emitted during fast damage/fracture, together with
various extensions of the basic scenario, combining mass or heat
transfer, or plasticity. Numerical simulations by Roman Vodicka (T.U.
Kosice, Slovakia) and C.G. Panagiotopoulos (FORTH, Heraklion) will
illustrate some of the models.