77 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- CentraleSupélecFR18 papers
- Université Paris-SaclayFR18 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- École Normale Supérieure Paris-SaclayFR5 papers
- École Normale Supérieure - PSLFR5 papers
- Laboratoire de Biologie et Pharmacologie AppliquéeFR5 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR4 papers
- Sorbonne UniversitéFR4 papers
- CEA DAM Île-de-FranceFR3 papers
- Institut de Mathématiques de Jussieu-Paris Rive GaucheFR3 papers
- Université Paris CitéFR3 papers
- Centre des MatériauxFR2 papers
30 papers
Accelerating the Serviceability-Based Design of Reinforced Concrete Rail Bridges under Geometric Uncertainties induced by unforeseen events: A Surrogate Modeling approach
Mouhammed Achhab, Pierre Jehel, Fabrice Gatuingt
Reinforced concrete rail bridges are essential components of railway infrastructure, where reliability, durability, and adaptability are key design priorities. However, the design…
Fast 3D Diffusion for Scalable Granular Media Synthesis
Muhammad Moeeze Hassan, Régis Cottereau, Filippo Gatti +1
Discrete Element Method (DEM) simulations of granular media are computationally intensive, particularly during initialization phases dominated by large displacements and kinetic en…
Breaking the Black Box: Inherently Interpretable Physics-Constrained Machine Learning With Weighted Mixed-Effects for Imbalanced Seismic Data
Vemula Sreenath, Filippo Gatti, Pierre Jehel
Ground motion models (GMMs) are critical for seismic risk mitigation and infrastructure design. Machine learning (ML) is increasingly applied to GMM development due to expanding st…
Relativistic second gradient theory of continuous media
Mina Chapon, Lionel Darondeau, Rodrigue Desmorat +2
Variational Relativity is a framework developed by Souriau in the sixties to better formulate General Relativity and its classical limit\,: Classical Continuum Mechanics. It has be…
Physics-based super-resolved simulation of 3D elastic wave propagation adopting scalable Diffusion Transformer
Hugo Gabrielidis, Filippo Gatti, Stéphane Vialle
In this study, we develop a Diffusion Transformer (referred as to DiT1D) for synthesizing realistic earthquake time histories. The DiT1D generates realistic broadband accelerograms…
Integrating Fourier Neural Operators with Diffusion Models to improve Spectral Representation of Synthetic Earthquake Ground Motion Response
Niccolò Perrone, Fanny Lehmann, Hugo Gabrielidis +2
Nuclear reactor buildings must be designed to withstand the dynamic load induced by strong ground motion earthquakes. For this reason, their structural behavior must be assessed in…
Training an AI hyperelastic constitutive model with experimental data
Clément Jailin, Antoine Benady, Emmanuel Baranger
A Physics-Augmented Neural network is trained to model a hyperelastic behavior. The dataset used for the training, validation, and test are displacement-force couples obtained from…
Experimental Learning of a Hyperelastic Behavior with a Physics-Augmented Neural Network
Clément Jailin, Antoine Benady, Remi Legroux +1
The recent development of Physics-Augmented Neural Networks (PANN) opens new opportunities for modeling material behaviors. These approaches have demonstrated their efficiency when…
In-situ localization of damage in a Zn-Al-Mg coating deposited on steel by continuous hot-dip galvanizing
Houssem Eddine Chaieb, Vincent Maurel, Kais Ammar +6
Zn-Al-Mg coatings are characterized by a complex microstructure with dendritic and eutectic phases. This heterogeneous phase distribution contributes to multiple deformation and da…
Transport Map Coupling Filter for State-Parameter Estimation
Jan Grashorn, Matteo Broggi, Ludovic Chamoin +1
Many dynamical systems are subjected to stochastic influences, such as random excitations, noise, and unmodeled behavior. Tracking the system's state and parameters based on a phys…
Multiple-Input Fourier Neural Operator (MIFNO) for source-dependent 3D elastodynamics
Fanny Lehmann, Filippo Gatti, Didier Clouteau
Numerical simulations are essential tools to evaluate the solution of the wave equation in complex settings, such as three-dimensional (3D) domains with heterogeneous properties. H…
Ferroelectric texture of individual barium titanate nanocrystals
Athulya Muraleedharan, Kevin Co, Maxime Vallet +8
Ferroelectric materials display exotic polarization textures at the nanoscale that could be used to improve the energetic efficiency of electronic components. The vast majority of…
Molecular dynamics simulation of the coalescence of surfactant-laden droplets
Soheil Arbabi, Piotr Deuar, Mateusz Denys +3
We investigate the coalescence of surfactant-laden water droplets by using several different surfactant types and a wide range of concentrations by means of a coarse-grained model…
Non-intrusive model combination for learning dynamical systems
Shiqi Wu, Ludovic Chamoin, Qianxiao Li
In data-driven modelling of complex dynamic processes, it is often desirable to combine different classes of models to enhance performance. Examples include coupled models of diffe…
Heterogeneity in tribologically transformed structure (TTS) of Ti-6Al-4V under fretting
Vivien Lefranc, Soha Baydoun, Camille Gandiolle +4
Fretting wear is a surface degradation process caused by oscillatory motion and contact slipping. During gross slip, high local stresses and plastic deformation in the surface and…
A modified combined active-set Newton method for solving phase-field fracture into the monolithic limit
Leon Maximilian Kolditz, Katrin Mang, Thomas Wick
In this work, we examine a numerical phase-field fracture framework in which the crack irreversibility constraint is treated with a primal-dual active set method and a linearizatio…
Fourier Neural Operator Surrogate Model to Predict 3D Seismic Waves Propagation
Fanny Lehmann, Filippo Gatti, Michaël Bertin +1
With the recent rise of neural operators, scientific machine learning offers new solutions to quantify uncertainties associated with high-fidelity numerical simulations. Traditiona…
Souriau's Relativistic general covariant formulation of hyperelasticity revisited
Boris Kolev, Rodrigue Desmorat
We present and modernize Souriau's 1958 geometric framework for Relativistic continuous media, and enlighten the necessary and the ad hoc modeling choices made since, focusing as m…
On the isotropy stratification of a real representation of a compact Lie group
Perla Azzi, Rodrigue Desmorat, Julien Grivaux +1
The aim of the present paper is to provide a comprehensive introduction to some algebraic and geometric aspects of real representations of compact Lie groups, as well as some resul…
Measure of the hygroscopic expansion of human dentin
Hakim Gharbi, Wang Wenlong, Chloé Giraudet +2
Background: Direct dental restoration implies a drying of the dentin substrate. This drying may induce significant strain in the dentin, affecting the bonding efficiency of the res…
Asynchronous scalable version of the Global-Local non-invasive coupling
Ahmed El Kerim, Pierre Gosselet, Frederic Magoules
The Global-Local non-invasive coupling is an improvement of the submodeling technique, which permits to locally enhance structure computations by introducing patches with refined m…
Distance to a constitutive tensor isotropy stratum by Lasserre polynomial optimization method
Perla Azzi, Rodrigue Desmorat, Boris Kolev +1
We give a detailed description of a polynomial optimization method allowing to solve a problem in continuum mechanics: the determination of the elasticity or the piezoelectricity t…
Upper bounds estimates of the distance to cubic or orthotropic elasticity
Rodrigue Desmorat, Boris Kolev
We address the problem, not of the determination -- which usually needs numerical methods -- but of an accurate analytical estimation of the distance of a raw elasticity tensor to…
Reduced polynomial invariant integrity basis for in-plane magneto-mechanical loading
Julien Taurines, Boris Kolev, Rodrigue Desmorat +1
The description of the behavior of a material subjected to multi-physics loadings requires the formulation of constitutive laws that usually derive from Gibbs free energies, using…