3D elastic wave propagation with a factorized Fourier neural operator (F-FNO)

F Lehmann, F Gatti, M Bertin, D Clouteau - Computer Methods in Applied …, 2024 - Elsevier
Numerical simulations are computationally demanding in three-dimensional (3D) settings
but they are often required to accurately represent physical phenomena. Neural operators …

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

F Lehmann, F Gatti, M Bertin… - Earth System Science …, 2024 - essd.copernicus.org
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 …

Machine learning opportunities to conduct high-fidelity earthquake simulations in multi-scale heterogeneous geology

F Lehmann, F Gatti, M Bertin, D Clouteau - Frontiers in Earth Science, 2022 - frontiersin.org
The 2019 Le Teil earthquake is an illustrative example of a moderate (MW 4.9) yet
damaging event, occurring at shallow depth (≈ 1 km) in a region with little to no geophysical …

Synthetic ground motions in heterogeneous geologies: the HEMEW-3D dataset for scientific machine learning

F Lehmann, F Gatti, M Bertin… - Earth System Science …, 2024 - essd.copernicus.org
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 …

Influence of 2D heterogeneous elastic soil properties on surface ground motion spatial variability

E El Haber, C Cornou, D Jongmans… - Soil Dynamics and …, 2019 - Elsevier
Spatial variability of earthquake ground motion (SVEGM) refers to the differences in
amplitude and phase between recordings of the same earthquake at different locations. In …

Uncertainty quantification and global sensitivity analysis for transient wave propagation in pressurized pipes

X Wang - Water Resources Research, 2021 - Wiley Online Library
Accurate simulation of pipe transient wave is crucial for the design, reliability assessment,
and defect detection of water supply systems. However, this is a difficult task since the wave …

Fast computation of inverse transient analysis for pipeline condition assessment via surrogate modeling with sparse sampling strategy

X Wang - Mechanical Systems and Signal Processing, 2022 - Elsevier
Inverse transient analysis (ITA) is a powerful tool for pipeline condition assessment, where
the concerned parameters are decided by matching the measured transient signal with its …

Scalable parallel scheme for sampling of Gaussian random fields over very large domains

L de Carvalho Paludo, V Bouvier… - … Journal for Numerical …, 2019 - Wiley Online Library
This paper proposes a new scheme for the generation of Gaussian random fields over large
domains (domain size much larger than the correlation length). The scheme decomposes …

On the statistical behavior of homogenized properties and ultrasonic phase velocities in random polycrystals

N Sheng, S Khazaie, M Chevreuil, S Fréour - International Journal of Solids …, 2023 - Elsevier
Most theoretical studies on homogenized properties of polycrystals consider infinite
textureless media with orientations characterized by independent Euler angles. However …

Influence of the mechanical and geometrical parameters on the cellular uptake of nanoparticles: A stochastic approach

S Iaquinta, S Khazaie, É Ishow… - International Journal …, 2022 - Wiley Online Library
Nanoparticles (NPs) are used for drug delivery with enhanced selectivity and reduced side‐
effect toxicity in cancer treatments. Based on the literature, the influence of the NPs …