Publications

Mechanics of materials

Optical model-based calibration of gray levels for laser damage size assessment

Fused silica is prone to damage under ultraviolet laser irradiation. Because they are key components to achieve fusion on high energy laser facilities, final fused silica optics are analyzed after each laser shot. The quantification of damage sites…

Guillaume Hallo, Chloé Lacombe, Marin Fouchier, Myriam Zerrad, Jérôme Néauport, François Hild

Optics Letters - 2023

Structural mechanics

Merging experimental design and structural identification around the concept of modified Constitutive Relation Error in low-frequency dynamics for enhanced structural monitoring

The modified Constitutive Relation Error (mCRE) is a model updating functional in which structural parameters are sought alongside mechanical fields as the best trade-off between all available information given by measured data and physics knowledge…

Matthieu Diaz, Pierre-Étienne Charbonnel, Ludovic Chamoin

Mechanical Systems and Signal Processing - 2023

Civil Engineering

Sorption in C-S-H at the molecular level: Disjoining pressures, effective interactions, hysteresis, and cavitation

Fatima Masara, Tulio Honorio, Farid Benboudjema

Cement and Concrete Research - 2023

Mechanics of materials

Identification of microscale fracture models for mortar with in-situ tests

The microscale fracture modeling of concrete requires explicit descriptions of the microstructure and the fracture properties of its constituents. The identification of fracture properties of mortar was carried out by numerical analyses of two in…

Aliaksandra Tsitova, Fabien Bernachy-Barbe, Benoît Bary, Christophe Bourcier, François Hild

International Journal of Mechanical Sciences - 2023

Risques

Kriging metamodels for 2D finite element simulations of the settlements induced by TBM excavation in urban areas

The finite element method (FEM) is a classical approach to simulate the surface settlements induced by a tunnel boring machine (TBM). Unfortunately, for this application, the FEM is also computationally demanding. In this case, it is often useful to…

Boris Kratz, Pierre Jehel, Maxime Tatin, Emmanuel Vazquez

Congrès Français du Génie Civil 2023 - 2023

General Relativity and Quantum Cosmology

Souriau's Relativistic general covariant formulation of hyperelasticity revisited

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. We focus as much as possible on the Continuum Mechanics point of view and describe…

Boris Kolev, Rodrigue Desmorat

Journal of the Mechanics and Physics of Solids - 2023

Numerical Analysis

Asynchronous global-local non-invasive coupling for linear elliptic problems

This paper presents the first asynchronous version of the Global/Local non-invasive coupling, capable of dealing efficiently with multiple, possibly adjacent, patches. We give a new interpretation of the coupling in terms of primal domain…

Ahmed El Kerim, Pierre Gosselet, Frederic Magoules

Computer Methods in Applied Mechanics and Engineering - 2023

Structural mechanics

Real-time inverse crack tracking in uncertain microstructures using PGD-based model reduction and extended Kalman filtering

Despite recent advances in sensing techniques and rapid growth of computational mechanics, it remains a challenge to monitor mechanical structures in real-time and evaluate their sustainability. In the present work, crack propagation is investigated…

Afsal Pulikkathodi, Elisabeth Longatte-Lacazedieu, Ludovic Chamoin

Computational Mechanics - 2023

Neural and Evolutionary Computing

Design of Artificial Neural Networks for damage estimation of composite laminates: Application to delamination failures in ply drops

This work proposes a data driven approach which utilizes Artificial Neural Networks (ANN) in conjunction with parametric non-linear finite element analysis. The aim is to provide a low cost numerical counterpart to the expensive experimental testing…

Arturo Mendoza, Orestis Friderikos, Roger Trullo, Emmanuel Baranger

Composite Structures - 2023

Mechanics of materials

Calibration of cohesive parameters for a castable refractory using 4D tomographic data and realistic crack path from in-situ wedge splitting test

Rafael Vargas, Rodrigo Bresciani Canto, François Hild, Benjamin Smaniotto

Journal of the European Ceramic Society - 2023