Seminar - MARIGO

Dottorato di Ricerca in Ingegneria Strutturale,
Sismica e Geotecnica (DrISSG)
Dipartimento di Ingegneria Strutturale
Politecnico di Milano
P.zza L. da Vinci, 32
20133 Milano

Annuncio di Seminario

Nell'ambito delle iniziative promosse dal Dottorato in Ingegneria Strutturale, Sismica e Geotecnica (DrISSG) Martedi' 26 Giugno, alle ore 11.30, nell'Aula Beltrami del DIS, il

Professor Jean-Jacques Marigo

École Polytechnique, Palaiseau (France)

terrà un seminario sul tema:

FROM GRADIENT DAMAGE MODELS TO GRIFFITH'S LAW OF FRACTURE

Abstract: The first goal of the seminar will be to show that the gradient damage models are able to describe all the process of the evolution of cracks in a body, from the initiation to the ultimate failure. The second goal will be to compare the law of evolution of cracks obtained from this type of models with the classical Griffith's law of brittle fracture. All the procedure is fundamentally based on a variational approach like the one developed in fracture mechanics by Bourdin-Francfort-Marigo (2008). A key point in the proof of the "convergence" of damage gradient models to Griffith's law will be the introduction of a generalized Rice integral coupled with a two-scale analysis. Several numerical examples will illustrate the matter.

Rif.: C. Comi (comi@stru.polimi.it)