A framework to model the fatigue behavior of brittle materials based on a variational phase-field approach

P Carrara, M Ambati, R Alessi, L De Lorenzis - Computer Methods in …, 2020 - Elsevier
A novel variational framework to model the fatigue behavior of brittle materials based on a
phase-field approach to fracture is presented. The standard regularized free energy …

Arbitrary order 2D virtual elements for polygonal meshes: part I, elastic problem

E Artioli, L Beirão da Veiga, C Lovadina… - Computational …, 2017 - Springer
The present work deals with the formulation of a virtual element method for two dimensional
structural problems. The contribution is split in two parts: in part I, the elastic problem is …

A phenomenological approach to fatigue with a variational phase-field model: The one-dimensional case

R Alessi, S Vidoli, L De Lorenzis - Engineering fracture mechanics, 2018 - Elsevier
We propose a new variational fatigue phase-field model. The basic idea of the model is to let
the fracture energy decrease as a suitably defined accumulated strain measure increases …

Comparison of phase-field models of fracture coupled with plasticity

R Alessi, M Ambati, T Gerasimov, S Vidoli… - … : A book in honour of D …, 2018 - Springer
In the last few years, several authors have proposed different phase-field models aimed at
describing ductile fracture phenomena. Most of these models fall within the class of …

A structure-preserving, operator splitting scheme for reaction-diffusion equations with detailed balance

C Liu, C Wang, Y Wang - Journal of Computational Physics, 2021 - Elsevier
In this paper, we propose and analyze a positivity-preserving, energy stable numerical
scheme for a certain type of reaction-diffusion systems involving the Law of Mass Action with …

Coupling damage and plasticity for a phase-field regularisation of brittle, cohesive and ductile fracture: One-dimensional examples

R Alessi, JJ Marigo, C Maurini, S Vidoli - International Journal of …, 2018 - Elsevier
Plasticity and damage are two fundamental phenomena in nonlinear solid mechanics
associated with the development of inelastic deformations and the reduction of the material …

Bayesian inversion for unified ductile phase-field fracture

N Noii, A Khodadadian, J Ulloa, F Aldakheel… - Computational …, 2021 - Springer
The prediction of crack initiation and propagation in ductile failure processes are
challenging tasks for the design and fabrication of metallic materials and structures on a …

Phase-field modeling of fatigue coupled to cyclic plasticity in an energetic formulation

J Ulloa, J Wambacq, R Alessi, G Degrande… - Computer Methods in …, 2021 - Elsevier
This paper presents a modeling framework to describe the driving mechanisms of cyclic
failure in brittle and ductile materials, including cyclic plasticity and fatigue crack growth. A …

On Evolutionary -Convergence for Gradient Systems

A Mielke - Macroscopic and large scale phenomena: coarse …, 2016 - Springer
In these notes we discuss general approaches for rigorously deriving limits of generalized
gradient flows. Our point of view is that a generalized gradient system is defined in terms of …

Uniaxial tensile behavior of ultra-high performance fiber-reinforced concrete (uhpfrc): Experiments and modeling

J Donnini, G Lancioni, G Chiappini, V Corinaldesi - Composite Structures, 2021 - Elsevier
Abstract Ultra-High Performance Fiber-Reinforced Concrete (UHPFRC) is considered a
promising material for many structural applications where high strength and high energy …