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CNA Seminar/Colloquium/Joint Pitt-CNA Colloquium
Gianni Dal Maso
Title: Fracture models as Gamma-limit of damage models.

Abstract: We present a variational model for damaged elastic materials depending on two parameters governing the width of the damaged regions and the elasticity constants in the damaged region. When these parameters tend to zero, we find that the corresponding functionals Gamma-converge to a functional related to fracture mechanics. The corresponding problem is brittle or cohesive, depending on the asymptotic ratio between the two parameters.

Date: Tuesday, May 17, 2011
Time: 1:30 pm
Location: Wean Hall 7218
Submitted by:  David Kinderlehrer