Publications

Mechanical engineering

Generative domain-adapted adversarial auto-encoder model for enhanced ultrasonic imaging applications

In this study, we propose a class-conditioned Generative Adversarial Autoencoder (cGAAE) to improve the realism of simulated ultrasonic imaging techniques, in particular the Multi-modal Total Focusing Method (M-TFM), based on the availability of…

G.E. Granados, F. Gatti, R. Miorelli, Sébastien Robert, D. Clouteau

NDT & E International - 2024

Numerical Analysis

High-order explicit PDE solvers using trigonometric interpolations of non-periodic functions (with applications to engineering, geophysics, & medicine)

This contribution presents recent developments of a Fourier series-based methodology for the numerical analysis of parabolic and hyperbolic partial differential equations (PDEs) with complex boundary conditions. Such a framework is based on a…

Faisal Amlani

16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics (WCCM-PANAM 2024) - 2024

Physics

Predictive Modeling of Fluid Flows Using Conditional Score-Based Diffusion Models

With the advent of increased computational power and advanced numerical methods, the simulation of turbulent fields has become central to many contemporary disciplines. Traditional solvers, while delivering high-quality predictions, still struggle…

Wilfried Genuist, Éric Savin, Filippo Gatti, Didier Clouteau

Mechanics

Experimental Learning of a Hyperelastic Behavior with a Physics-Augmented Neural Network

The recent development of Physics-Augmented Neural Networks (PANN) opens new opportunities for modeling material behaviors. These approaches have demonstrated their efficiency when trained on synthetic cases. This study aims to demonstrate the…

Clément Jailin, Antoine Benady, Remi Legroux, Emmanuel Baranger

Experimental Mechanics - 2024

Artificial Intelligence

Uncertainty propagation from crustal geologies to rock-site ground motion with a Fourier Neural Operator

Fanny Lehmann, Filippo Gatti, Michaël Bertin, Damien Grenié, Didier Clouteau

European Journal of Environmental and Civil Engineering - 2024

Artificial Intelligence

Synthetic ground motions in heterogeneous geologies from various sources: the HEMEW S -3D database

Abstract. The ever-improving performances of physics-based simulations and the rapid developments of deep learning are offering new perspectives to study earthquake-induced ground motion. Due to the large amount of data required to train deep neural…

Fanny Lehmann, Filippo Gatti, Michaël Bertin, Didier Clouteau

Earth System Science Data - 2024

Materials and structures in mechanics

From the PEEK microstructure at welded interfaces to the mechanical properties of thermoplastic composites manufactured by a Laser-Assisted Tape Placement process

The Laser-Assisted Tape Placement (LATP) process of thermoplastic composites enables the rapid production of laminates. However, it generates cooling rates gradients between the surface and the bulk of the plies, probably causing a crystallinity…

Noé Restif, Mael Péron, Suzanne Laik, Federica Daghia, Frédéric Jaquemin

ECCM21 - 21st European Conference on Composite Materials - 2024

Materials and structures in mechanics

Multi-scale characterization of carbon-fibre reinforced PEEK composites manufactured by laser-assisted tape placement

The Laser-Assisted Tape Placement forming process of thermoplastic composites enables the rapid production of laminates. However, it requires the tuning of the processing parameters, which is currently limited by a misunderstanding of the…

Noé Restif, Suzanne Laik, Mael Péron, Federica Daghia, Frédéric Jacquemin

27th International ESAFORM Conference on Material Forming - ESAFORM 2024 - 2024

Engineering Sciences

Brightness and Contrast Corrections for Space-Time Stereocorrelation via Proper Generalized Decomposition

Stereocorrelation (SC) is a flexible, non-contact experimental tool for measuring 3D shape and surface kinematics in complex mechanical tests. The violation of gray level conservation raises the issue of convergence of SC (e.g., when local specular…

Xuyang Chang, Corentin Le Gourriérec, François Hild, Stéphane Roux

Mechanical Systems and Signal Processing - 2024

Solid mechanics

A surrogate model of elastic wave propagation to quantify uncertainties in seismic hazard analysis

The propagation of seismic waves in the ground is subject to many sources of uncertainties, ranging from the uncertain activity of geological faults to the incomplete knowledge of mechanical properties inside the Earth's crust. To properly assess…

Fanny Lehmann