A Γ-convergence approach to stability of unilateral minimality properties in fracture mechanics and applications

A Giacomini, M Ponsiglione - Archive for rational mechanics and analysis, 2006 - Springer
We prove a stability result for a large class of unilateral minimality properties which arise
naturally in the theory of crack propagation proposed by Francfort & Marigo in [14]. Then we …

[HTML][HTML] Γ-convergence of free-discontinuity problems

F Cagnetti, G Dal Maso, L Scardia… - Annales de l'Institut Henri …, 2019 - Elsevier
We study the Γ-convergence of sequences of free-discontinuity functionals depending on
vector-valued functions u which can be discontinuous across hypersurfaces whose shape …

-convergence for free-discontinuity problems in linear elasticity: Homogenization and relaxation

M Friedrich, M Perugini, F Solombrino - arxiv preprint arxiv:2010.05461, 2020 - arxiv.org
We analyze the $\Gamma $-convergence of sequences of free-discontinuity functionals
arising in the modeling of linear elastic solids with surface discontinuities, including …

[HTML][HTML] Discrete stochastic approximations of the Mumford–Shah functional

M Ruf - Annales de l'Institut Henri Poincaré C, Analyse non …, 2019 - Elsevier
We propose a new Γ-convergent discrete approximation of the Mumford–Shah functional.
The discrete functionals act on functions defined on stationary stochastic lattices and take …

Non-interpenetration of matter for SBV deformations of hyperelastic brittle materials

A Giacomini, M Ponsiglione - Proceedings of the Royal Society of …, 2008 - cambridge.org
We prove that the Ciarlet–Nečas non-interpenetration of matter condition can be extended to
the case of deformations of hyperelastic brittle materials belonging to the class of special …

Second-order structured deformations: relaxation, integral representation and applications

AC Barroso, J Matias, M Morandotti… - Archive for Rational …, 2017 - Springer
Second-order structured deformations of continua provide an extension of the multiscale
geometry of first-order structured deformations by taking into account the effects of …

Fracture mechanics in perforated domains: a variational model for brittle porous media

M Focardi, MS Gelli, M Ponsiglione - Mathematical Models and …, 2009 - World Scientific
This paper deals with fracture mechanics in periodically perforated domains. Our aim is to
provide a variational model for brittle porous media in the case of anti-planar elasticity …

Homogenization of the Neumann problem in perforated domains: an alternative approach

M Barchiesi, M Focardi - Calculus of Variations and Partial Differential …, 2011 - Springer
The main result of this paper is a compactness theorem for families of functions in the space
SBV (Special functions of Bounded Variation) defined on periodically perforated domains …

An Asymptotic Study¶ of the Debonding of Thin Films

K Bhattacharya, I Fonseca, G Francfort - Archive for rational mechanics …, 2002 - Springer
We examine the asymptotic behavior of a bilayer thin film using the notion of Γ-convergence.
We allow for debonding at the interface, but penalize it using an interfacial energy; thus the …

Upscaling and spatial localization of non-local energies with applications to crystal plasticity

J Matias, M Morandotti, DR Owen… - … and Mechanics of …, 2021 - journals.sagepub.com
We describe multiscale geometrical changes via structured deformations (g, G) and the non-
local energetic response at a point x via a function Ψ of the weighted averages of the jumps …