Publications

Géotechnique

Optimizing TBM Parameters through Surface Settlement Monitoring Using Surrogate Modelling Approach

The process of validating modeling assumptions and calibrating the model using sensor data (Figure 3) involves running numerous simulations to fine-tune the numerical model (outlined in Figure 2) until an accurate representation of the observed data…

Boris Kratz, Pierre Jehel, Maxime Tatin, Emmanuel Vazquez

PhD day, june 2023, Palaiseau - 2023

Civil Engineering

3D Numerical Simulation of TBM Excavation for Predicting Surface Settlements - State of the Art

Tunnels offer efficient transportation infrastructure in urban areas, such as the Grand Paris Express in France. In urban areas, a densely built environment is exposed to the surface settlements caused by tunneling, and consequently, vulnerable…

Boris Kratz, Pierre Jehel, Maxime Tatin

World Tunnel Congress 2023 - 2023

Signal and Image processing

Towards a multi-fidelity deep learning framework for a fast and realistic generation of ultrasonic multi-modal Total Focusing Method images in complex geometries

This paper presents a deep-learning surrogate model tailored for a fast generation of realistic ultrasonic images in the Multi-modal Total Focusing Method (M-TFM) framework. The method employs both physics- and data- driven data-sets. To this end,…

Gerardo Granados, Roberto Miorelli, Filippo Gatti, Sébastien Robert, Didier Clouteau

NDT & E International - 2023

Dynamique, vibrations

An Open Database to Evaluate the Fundamental Frequency of Historical Masonry Towers through Empirical and Physics-Based Formulations

The fundamental frequency plays a primary role in the dynamic assessment of Cultural Heritage towers. Local and global features may impact its value: geometric, material features, interaction with the soil and adjacent buildings, aging, the…

Arnaud Montabert, Cédric Giry, Claire Limoge Schraen, Jade Lépine, Clarisse Choueiri, E. Diego Mercerat, Philippe Guéguen

Buildings - 2023

Solid mechanics

Numerical framework for data-driven model-based monitoring of dynamical systems - Application to earthquake engineering

The EMSI laboratory (CEA Saclay) is equipped with shaking tables that allow to assess the seismic performance of civil engineering constructions. The control laws of the hydraulic actuators that drive them do not directly integrate the health…

Matthieu Diaz

Engineering Sciences

Prediction of the nonlinear transversal compression behavior of high performance fibers using machine learning

Experimental determination of the nonlinear mechanical behavior of high performance fibers is still a big challenge due to tiny size of these materials at the micrometer level. This study proposes a prediction of the nonlinear behavior of these…

Cuong Ha-Minh, Quoc-Hoan Pham, Tien-Long Chu, Quyet-Tien Le

The 14th International Conference of Computational Methods (ICCM2023) - 2023

Solid mechanics

Karhunen-Loève expansion based on an analytical solution over a bounding box domain

A.A. Basmaji, Mona Madlen Dannert, Fynn Bensel, R.M.N. Fleury, Amélie Fau, Udo Nackenhorst

Probabilistic Engineering Mechanics - 2023

Engineering Sciences

Multi-scale Modelling of the Ballistic Impact of One Single Kevlar Yarn

In this work, a multi-scale model of one single crimped Kevlar yarn under ballistic impact is developed. To gain the computation time, the yarn is divided into two parts. While the impact zone is simulated on the microscopic scale, the other zone is…

Q. Hoan Pham, C. Ha-Minh, T. Long Chu, T. Kanit, A. Imad

Engineering Sciences

Influence de défauts de fabrication sur le comportement endommageable de tubes CVI-SiC/SiC élaborés par enroulement filamentaire sous sollicitation de traction cyclée

SiC/SiC composites are attractive candidates for fuel cladding applications in pressurized light-water reactors. In this study, fuel cladding tubes were manufactured by filament winding, and the matrix was deposited by CVI process (Chemical Vapour…

C Morel, C Lorrette, J Braun, J Lamon, E Baranger

Journées Nationales sur les Composites (JNC23) - 2023

Mechanics of materials

The influence of grinding process on the mechanical behavior of SiC/SiC composite tubes under uniaxial tension

SiC/SiC composites are candidates of interest for fuel cladding applications in pressurized light-water reactors. In this study, fuel cladding tubes were made by filament winding and the matrix was deposited by CVI (Chemical Vapour Infiltration),…

Claire Morel, E. Baranger, J. Lamon, C. Marques, S. Le Bras, J. Braun, C. Lorrette

Journal of the European Ceramic Society - 2023