Publications

Structural mechanics

Analyse unidimensionnelle des effets de bords et de diffusion de l'endommagement pour des méthodes non locales avec interactions évolutives

Les modèles d’endommagement non locaux classiques présentent quelques inconsistances physiques comme l’attraction aux bords et la diffusion de l’endommagement proche de la localisation des déformations. Dans cette contribution, le comportement de la…

Breno RIBEIRO NOGUEIRA, Cédric Giry, Giuseppe Rastiello, Fabrice Gatuingt

CSMA 2022 - 15ème colloque national en calcul des structures - 2022

Mechanics of materials

On accounting for speckle extinction via DIC and PCA

Digital Image Correlation (DIC) is a full-field measurement technique that generally relies on brightness conservation principles. This work aims to analyze cases in which the speckle pattern vanished after heating, thereby severely altering the…

Rafael Vargas, R B Canto, François Hild, Stéphane Roux

Optics and Lasers in Engineering - 2022

Image Processing

An algorithm for Structural Health Monitoring by Digital Image Correlation: Proof of concept and case study

In the field of structural health monitoring, the use of Digital Image Correlation (DIC) on relevant surfaces offers remarkable advantages. Such a method is presented herein. The statistically stationary nature of usual loads makes it possible to…

Jordan Curt, Matteo Capaldo, François Hild, Stéphane Roux

Optics and Lasers in Engineering - 2022

Materials

Bridging steady-state and stick-slip fracture propagation in glassy polymers

Both an experimental and a theoretical investigation of the fracture propagation mechanisms acting at the process zone scale in glassy polymers are presented. The main aim is to establish a common modeling for different kinds of glassy polymers…

Yannick Nziakou, Guillaume Fischer, Matthieu George, Bruno Bresson, Mathilde Tiennot, Stéphane Roux, Jean-Louis Halary, Matteo Ciccotti

Soft Matter - 2022

Géotechnique

Comportement des tunnels pressurisés en milieu urbain

Nowadays, the use of pressurized tunnel boring machines in urban areas has en-abled the possibility of limiting soil deformations due to tunnel constructions. However, due to the heterogeneous nature of the soils and the ap-plication of…

Christian Noubissi Kountchou

Engineering Sciences

Quantitative thermomechanical characterisation of 3D-woven SiC/SiC composites from in-situ tomographic and thermographic imaging

3D woven composites are often modelled using homogenisation whose foundation requires the validity of scale separation-microstructure scale much smaller than any other scales from part geometry, manufacture or loadingoften violated in reality…

Léonard Turpin, Stéphane Roux, Jean Bénézech, Guillaume Couégnat, Andrew King, Olivier Caty, Sébastien Denneulin, Éric Martin

Composite Structures - 2022

Environmental Sciences

BINDER COMPOSITION COMPRISING POZZOLANIC MATERIAL AND FINE FILLER

Laurent Frouin, Roberta Alfani, Tanya Gutsalenko, Thomas Wattez, Mohend Chaouche, Martin Cyr

Computer Science

Mesures 3D par stéréo-vision de la déformation d’un verre feuilleté sous impact rigide

Corentin Le Gourrierec, Xuyang Chang, Bastien Durand, Richard Villey, Xavier Brajer, Stéphane Roux

25e Congrès Français de Mécanique, Nantes, 29 août-2 septembre 2022 - 2022

Computer Science

La corrélation d'images numériques pour le suivi de l'endommagement des optiques du Laser MégaJoule

High energy laser facilities designed for fusion experiments, such as Laser MegaJoule or National Ignition Facility, are limited by laser-induced damage on their final optics. Accurate and early detection of damage growth is required for successful…

Guillaume Hallo, Chloé Lacombe, Jérôme Néauport, François Hild

CFM 2022 - 25e Congrès Français de Mécanique - 2022

Mechanics

Distance aux strates d'isotropie par optimisation polynomiale

Nous présentons une méthode d’optimisation polynomiale permettant de résoudre un problème en mécanique des milieux continus : la détermination du tenseur modélisant une loi de comportement, ayant une symétrie spécifique le plus proche d’un tenseur…

Perla Azzi, Rodrigue Desmorat, Boris Kolev, Fabien Priziac

25e Congrès Français de Mécanique - 2022