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Communication dans un congrès

Non-Intrusive Coupling of Neural Network-Based Local Models to Explicit Dynamics Solvers

Afsal Pulikkathodi, Elisabeth Lacazedieu, Ludovic Chamoin, Juan Pedro Berro Ramirez, Laurent Rota, Malek Zarroug, Amin Zammouri

In solving large structural problems with multiple complex localized behaviors, current industry practices rely on highly simplified Finite Element Method (FEM) models, leading to inaccurate failure predictions. Various domain decomposition techniques have emerged to tackle these challenges, with…

16ème Colloque National en Calcul de Structures (CSMA 2024), CNRS; CSMA; ENS Paris-Saclay; CentraleSupélec, May 2024, Hyères, France. ⟨hal-04611006⟩

Communication dans un congrès

Neural Architecture Tuning: A BO-Powered NAS Tool

Houssem Ouertatani, Cristian Maxim, Smail Niar, El-Ghazali Talbi

Neural Architecture Search (NAS) consists of applying an optimization technique to find the best performing architecture(s) in a defined search space, with regard to an objective function. The practical implementation of NAS currently carries certain limitations, including prohibitive costs with…

International Conference in Optimization and Learning (OLA), May 2024, Dubrovnik, Croatia. ⟨10.1007/978-3-031-77941-1_7⟩. ⟨hal-04540630⟩

Communication dans un congrès

Frottement multi-échelle : de la rugosité au calcul de structure via l'utilisation du Deep Learning

Victor Lalleman, Vincent Magnier, Pierre Gosselet, Cédric Hubert, Stéphane Salengro

La présence de défauts de surface (rugosité, défauts de surface, profils, etc.) au sein d'un contact entraîne indéniablement une modification de ses propriétés locales comme le coefficient de frottement. Sur les opérations de calage de roues sur essieux ferroviaires, cet état de surface est…

16ème Colloque National en Calcul de Structures (CSMA 2024), CNRS; CSMA; ENS Paris-Saclay; CentraleSupélec, May 2024, Hyères, France. ⟨hal-04610942⟩

Communication dans un congrès

Optimisation par apprentissage automatique du procédé de fabrication additive métallique par diffusion atomique

Elisabeth Lacazedieu

Le présent article a pour objet d’optimiser les paramètres intervenant dans la fabrication additive métallique par le procédé de diffusion atomique grâce à un usage optimal des données expérimentales disponibles issues d’essais de caractérisation des propriétés mécaniques de matériaux obtenus par…

16ème Colloque National en Calcul de Structures (CSMA 2024), CNRS; CSMA; ENS Paris-Saclay; CentraleSupélec, May 2024, Hyères, France. ⟨hal-04611012⟩

Communication dans un congrès

Régularisation du problème de frottement et résolution par Méthode Asymptotique Numérique

Fabien Béchet, Arnaud Lejeune, Michel Potier-Ferry

Cette communication a pour but de présenter une nouvelle méthode de régularisation de l’équation de frottement sec et l’algorithme de résolution associé dans le contexte de la Méthode Asymptotique Numérique. Cette nouvelle méthode est comparée à une méthode précédemment développée en terme de…

16ème Colloque National en Calcul de Structures (CSMA 2024), CNRS; CSMA; ENS Paris-Saclay; CentraleSupélec, May 2024, Hyères, France. ⟨hal-04611030⟩

Communication dans un congrès

Non-intrusive coupling of neural network-based local model and explicit dynamics

Afsal Pulikkathodi, Elisabeth Lacazedieu, Ludovic Chamoin, Jpb Ramirez, Laurent Rota, Malek Zarroug, Amin Zammouri

In solving large structural problems with multiple complex localized behaviors, current industry practices rely on highly simplified Finite Element Method (FEM) models, leading to inaccurate failure predictions. Various domain decomposition techniques have emerged to tackle these challenges, with…

16ème Colloque National en Calcul de Structures (CSMA 2024), CNRS; CSMA; ENS Paris-Saclay; CentraleSupélec, May 2024, Hyères, France. ⟨hal-04431982⟩

Article dans une revue

A novel methodology to assess optical profilometer stability to discriminate surface roughness

Clement Moreau, Maxence Bigerelle, Julie Marteau, Julie Lemesle, David Paez, Robin Guibert, François Blateyron, Christopher Brown

A new method is proposed to investigate the measurement variation of instruments and their ability to discriminate two TA6V surfaces obtained by grinding with SiC grit papers (80 and 120). Three optical measurement technologies included into a single apparatus, namely Confocal Microscopy (CM),…

Surface Topography: Metrology and Properties, 2024, 12 (2), pp.025018. ⟨10.1088/2051-672X/ad4378⟩. ⟨hal-05318694⟩

Communication dans un congrès

Agent's Cooperation Levels to Enhance Human-Robot Teaming

Sridath Tula, Marie-Pierre Pacaux-Lemoine, Emmanuelle Grislin-Le Strugeon, Paulo Eduardo Santos, Anna Ma-Wyatt, Jean-Philippe Diguet

Effective cooperation between human operators and robots is essential for the accomplishment of crucial tasks in tough and dangerous contexts, such as search and rescue operations. While autonomous robots excel at moving through dangerous conditions, human decisions made on the basis of global…

Workshop ARMS (Autonomous Robots and Multirobot Systems), 23rd Inter. Conference on Autonomous Agents and Multiagent Systems (AAMAS'24), May 2024, Auckland, New Zealand. ⟨hal-04571571⟩

Chapitre d'ouvrage

A primer to the nuances of authorisation, authentication, and identification

Enka Blanchard, Mehdi Bouhamidi, Jörg Pohle

This chapter, focused on the nuances between authorisation, authentication, and identification, is structured as follows. We start by going over conceptual aspects and setting some definitions around identification and authentication, from adversarial frameworks to information linking and leaking.…

Jessica Eynard. L'identité numérique Quelle définition pour quelle protection ?, Larcier, 2024, 9782807919952. ⟨hal-04950647⟩

Article dans une revue

A new approach for dynamic output feedback control design of time-delayed nonlinear systems

Márcia L.C. Peixoto, Paulo S.P. Pessim, Reinaldo Palhares

This paper introduces a full-order dynamic output-feedback (DOF) controller for discrete-time nonlinear systems with time-varying delays represented by Linear Parameter-Varying (LPV) systems. The controller design is carried out by developing delay-dependent Linear Matrix Inequality-based…

European Journal of Control, 2024, 77, pp.100993. ⟨hal-05329952⟩