Rate-independent systems

A Mielke, T Roubíček - Applied Mathematical Sciences, 2015 - Springer
Our work on rate-independent systems was stimulated by our search for evolutionary
material models for shape-memory alloys that are flexible enough to encompass nonlinear …

[HTML][HTML] High-accuracy phase-field models for brittle fracture based on a new family of degradation functions

JM Sargado, E Keilegavlen, I Berre… - Journal of the Mechanics …, 2018 - Elsevier
Phase-field approaches to fracture based on energy minimization principles have been
rapidly gaining popularity in recent years, and are particularly well-suited for simulating …

Nucleation under multi-axial loading in variational phase-field models of brittle fracture

L De Lorenzis, C Maurini - International Journal of Fracture, 2022 - Springer
Phase-field models of brittle fracture can be regarded as gradient damage models including
an intrinsic internal length. This length determines the stability threshold of solutions with …

An eigenerosion approach to brittle fracture

A Pandolfi, M Ortiz - International Journal for Numerical …, 2012 - Wiley Online Library
The present work is concerned with the verification and validation of a variant of the
eigenfracture scheme of Schmidt et al.(2009) based on element erosion, which we refer to …

BV solutions and viscosity approximations of rate-independent systems∗

A Mielke, R Rossi, G Savaré - ESAIM: Control, Optimisation and …, 2012 - cambridge.org
In the nonconvex case, solutions of rate-independent systems may develop jumps as a
function of time. To model such jumps, we adopt the philosophy that rate-independence …

Damage and fracture evolution in brittle materials by shape optimization methods

G Allaire, F Jouve, N Van Goethem - Journal of Computational Physics, 2011 - Elsevier
This paper is devoted to a numerical implementation of the Francfort–Marigo model of
damage evolution in brittle materials. This quasi-static model is based, at each time step, on …

Variational fracture: twenty years after

GA Francfort - International Journal of Fracture, 2022 - Springer
In this work, we propose to succinctly review, in non technical terms, the current
mathematical state of brittle fracture first put forth by AA Griffith in his seminal work Griffith …

[PDF][PDF] Γ‐convergence: a tool to investigate physical phenomena across scales

M Focardi - Mathematical Methods in the Applied Sciences, 2012 - researchgate.net
A recurrent question arising in several fields is the determination of sufficient conditions,
hopefully necessary as well, ensuring the convergence of sequences of minimum problems …

A variational approach to fracture and other inelastic phenomena

G Del Piero - Journal of Elasticity, 2013 - Springer
The aim of the present article is a description of the many phenomenological aspects of
fracture and of their relations with other inelastic phenomena, such as the formation of …

Modeling fracture by material-point erosion

A Pandolfi, B Li, M Ortiz - International Journal of fracture, 2013 - Springer
The present work is concerned with the verification and validation of an implementation of
the eigenfracture scheme of Schmidt et al.(SIAM J Multiscale Model Simul 7: 1237–1266 …