Aller au contenu  Aller au menu  Aller à la recherche

Bienvenue - Laboratoire Jacques-Louis Lions




Print this page |


Chiffres clefs

217 personnes travaillent au LJLL

83 personnels permanents

47 enseignants chercheurs

13 chercheurs CNRS

9 chercheurs INRIA

2 chercheurs CEREMA

12 ingénieurs, techniciens et personnels administratifs

134 personnels non permanents

85 doctorants

16 post-doc et ATER

5 chaires et délégations

12 émérites et collaborateurs bénévoles

16 visiteurs


Chiffres janvier 2014


J.F. Babadjian

Lundi 25 septembre 2017

J.F. Babadjian (Université Paris-Sud, Orsay)

Concentration analysis of brittle damage


This talk is concerned with an asymptotic analysis of a variational model of brittle damage, when the damaged zone concentrates into a set of zero Lebesgue measure, and, at the same, the stiffness of the damaged material becomes arbitrarily small. Two non trivial regimes will be highlighted. For the first one, damage is so negligible that the model converges to a purely elastic one. In the second regime, concentration leads to a limiting energy with linear growth as typically encountered in plasticity. This is an ongoing work with F. Iurlano.