Endommagement de milieux hétérogènes : Le papier en tant que matériau modèle

Autor: Villette, François

Publikováno v: Mécanique des matériaux [physics.class-ph]. Université Grenoble Alpes [2020-..], 2020. Français. ⟨NNT : 2020GRALI062⟩

The understanding, modeling and prediction of failure in heterogeneous materials are important issues for many applications such as the resistance of civil engineering structures or rock detachments for example. Currently, damage models involve an in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2592::e7bcc08f35c1a2114510f74c7c77871a
https://tel.archives-ouvertes.fr/tel-03135197

A continuous damage model to mimic sharp cracks in quasi-brittle materials

Autor: Casado-Antolin, Montserrat

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname

A usual trick in various modelling approaches for computational fracture (i.e. damage models, phase-field approaches) is to include an artificial residual stiffness. This is done to avoid singularity of the tangent stiffness matrix. The goal of this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::645182f0bc98baf8bbdf2cd1d1b055b9
https://hdl.handle.net/2117/129135

Coupling local and non-local damage evolutions with the Thick Level Set model

Autor: Nicolas Moës, Claude Stolz, Nicolas Chevaugeon

Publikováno v: Advanced Modeling and Simulation in Engineering Sciences
Advanced Modeling and Simulation in Engineering Sciences, 2014, 1 (1), pp.16. ⟨10.1186/s40323-014-0016-2⟩
Advanced Modeling and Simulation in Engineering Sciences, SpringerOpen, 2014, 1 (1), pp.1-16

International audience; Background: The Thick Level Set model (TLS) is a recent method to delocalize local constitutive models suffering spurious localization. It has two major advantages compared to other delocalization methods. The first one is tha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03462bdde8a2e359f54a081f5ba9e46c
https://doi.org/10.1186/s40323-014-0016-2

Approche variationnelle des lois de Griffith et de Paris via des modèles non-locaux d'endommagement : étude théorique et mise en oeuvre numérique

Autor: Amor, Hanen

Publikováno v: Modélisation et simulation. Université Paris-Nord-Paris XIII, 2008. Français

The subject of this thesis is the development of the variational approach of Griffith and Paris laws for crack propagation via non-local damage models (i.e. those whose energy contains terms with gradient of the damage field). Firstly, we present a c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2592::b935c7b4e96efa5612a1a37064ddd0a6
https://tel.archives-ouvertes.fr/tel-00352989/document

Approche variationnelle des lois de Griffith et de Paris de propagation de fissures via des modèles non-locaux d'endommagement

Autor: Hanen, Amor, Marigo, Jean-Jacques

Publikováno v: 8e Colloque national en calcul des structures
8e Colloque national en calcul des structures, CSMA, May 2007, Giens, France

A. Jaubert and J.-J. Marigo proposed a new formulation for fatigue based on a principle of least energy. We proposed to regularize the total energy of the body (sum of its elastic energy and its surface energy) by non-local damage models. In this wor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::bce1128a5056fba47ac9318e7d182ca6
https://hal.archives-ouvertes.fr/hal-01495594/document