proceedings 2025

[1] MATERIAL CHARACTERIZATION FOR PARTICLE-FILLED RTM IN 3D FIBROUS PREFORMS, L. Marchand, S. Comas-Cardona, C. Binetruy, A. Hautefeuille, Iccm International Conferences on Composite Materials (2025)

In the case of severe thermo mechanical loads, the composite materials of this study are manufactured through Resin Transfer Molding process in which a particle filled thermosetting resin is injected into a 3D fibrous preform. The challenge is to control the process by building a model that couples flow in porous media, particle filtration, and material properties' evolution induced by the filtrat...

[2] CO2 uptake by accelerated carbonation of recycled concrete aggregates: quantifying bound CO2 by a defined protocol, Thomas Pernin, Laurent Cassayre, Severine Camy, Kilesh Jaunk-Eypersad, Farah Kaddah, Gael Corvec, Jena Jeong, Emmanuel Roziere, Philippe Turcry, Ouali Amiri, Riccardo Artoni, Fib Symposium, pp. 868-877, ISBN:[9782940643295] (2025)

The ANR CO2NCRETE project builds upon the FastCarb initiative, which demonstrated the industrial feasibility of accelerated carbonation of recycled concrete aggregates (RCA). CO2NCRETE aims to refine carbonation mechanisms by optimizing key parameters (temperature, water content, CO2 pressure...) to achieve enhanced carbonation levels. In this study, RCA was carbon...

[3] CO2 uptake by accelerated carbonation of recycled concrete aggregates: characterization at the grain scale by tomography and micro-indentation, Farah Kaddah, Jerome Lux, Emmanuel Roziere, Philippe Turcry, Ouali Amiri, Harifidy Ranaivomanana, Abdelkarim Ait-Mokhtar, Fib Symposium, pp. 360-368, ISBN:[9782940643295] (2025)

Accelerated carbonation of recycled concrete aggregates (RCA) is one of the approaches considered to reduce the carbon footprint of construction. After crushing, RCA can be used to mineralize CO2 when exposed to industrial gases. This paper presents the results of an experimental campaign on 'model' RCA cement paste spheres of 15 and 20 mm in diameter tested during carbonation using inn...

[4] Influence of Interlayer Properties on the Mechanical Performance of Multi-Layered Concrete Structures, Salma Es-Satte, Syed Yasir Alam, Jean Michel Torrenti, Ahmed Loukili, Fib Symposium, pp. 2092-2301, ISBN:[9782940643295] (2025)

The construction sector is moving away from traditional monolithic concrete structures towards advanced, functionally graded, or composite elements. These innovations improve mechanical and thermal properties, optimise material use, lower costs, and reduce environmental impact. However, layering different concretes creates weak interlayer zones, compromising structural integrity. This study invest...

[5] Evaluation of concrete performance: from improving existing durability tests to the definition of new protocols, Emmanuel Roziere, Philippe Turcry, Franck Cassagnabere, Philippe Fonollosa, Fib Symposium, pp. 625-632, ISBN:[9782940643295] (2025)

The definition of rapid, representative and reproducible test methods is a major condition for a safe application of performance based approach. A working group of the French National Project PerfDuB focused on methods for assessing the performance of concrete subjected to three main exposure conditions: carbonation (XC), chloride ion penetration (XS/XD) and chemical attacks (XA). Existing proto c...

[6] Anisotropic expansion and shrinkage behavior of thermosetting prepreg layups with respect to the compaction strategy, Sourour Traouli, Steven Le Corre, Vincent Sobotka, Mael Peron, Jago Pridie, Materials Research Proceedings, Vol. 54, pp. 2361-2370, ISBN:[9781644903599], Materials Research Forum LLC (2025), doi:10.21741/9781644903599-255

The manufacturing of high performance thermosetting composites requires precise control over thermo mechanical and chemical processes, particularly during curing. Cure shrinkage in the thermoset matrix, coupled with thermal expansion and compaction, significantly influences the final parts dimensional stability and structural integrity. Additionally, improper compaction before curing can lead to d...

[7] PerfDub project Data Base on concrete mixes and its exploitation, Jonathan Mai-Nhu, Francois Cussigh, Philippe Turcry, Emmanuel R.O. Ziere, Michael Dierkens, Gabriel Pham, Francois Toutlemonde, Patrick Rougeau, Fib Symposium, pp. 804-812, ISBN:[9782940643295] (2025)

The French research and development project PerfDuB aimed at defining a methodology to justify the durability of concretes (and concrete structures) through a performance based approach. This article illustrates how the data base was used to determine relation between the mix characteristics and the durability properties and to contribute to determine threshold values of durability properties to a...

[8] Experimental assessment and 2D-Modelling of the viscous sintering of superimposed filaments based on biopolymer, Laurent Chaunier, Melanie Thadasack, Anne Laure Reguerre, Achraf Chebbi, Lucas Huttin, Amelie Moisy, Sebastien Comas-Cardona, Timm Weitkamp, Materials Research Proceedings, Vol. 54, pp. 2-11, ISBN:[9781644903599], Materials Research Forum LLC (2025), doi:10.21741/9781644903599-1

Additive Manufacturing by Molten material Extrusion (AM ME) of biocompatible and edible parts based on natural biopolymers, such as zein, a protein extracted from corn, opens prospects for applications in the pharmaceutical field. Cohesion between deposited layers requires filament spreading and diffusion of macromolecules at the interface. Viscous sintering has to be characterized and modelled in...

[9] Monitoring the electrical resistivity profiles of ordinary and slag concrete samples subjected to artificial tidal cycles, Sergio Palma Lopes, Marie Ange Eid, Geraldine Villain, Stephanie Bonnet, Fib Symposium, pp. 653-660, ISBN:[9782940643295] (2025)

Instrumented concrete specimens of two formulations, an ordinary and a BFS concrete, were subjected to long term artificial tide cycles. An embedded resistivity sensor was tested in this study to monitor resistivity profiles in concrete. Resistivity values in the slag concrete are several times greater than values in the ordinary concrete, which confirms the effect of BFS addition on the microstru...

[10] REMOTE MONITORING OF THE GROWTH OF BIOFOULING ON DYNAMIC ELECTRICAL CABLES AND MOORING LINES OF FLOATING WIND TURBINE, Ziad Maksassi, Ahmed Gueled, Benoit Parrein, Bertrand Garnier, Franck Schoefs, Proceedings of ASME 2025 6th International Offshore Wind Technical Conference Iowtc 2025, ISBN:[9780791889282], American Society of Mechanical Engineers (2025), doi:10.1115/IOWTC2025-164459

Marine biocolonization, or biofouling, on submarine dynamic electrical cables presents a significant challenge for offshore wind energy systems. The accumulation of marine organisms, such as algae and mollusks, alters the surface characteristics of the cables, increasing both their mass and roughness. This results in higher hydrodynamic forces and accelerates mechanical fatigue, ultimately reducin...

[11] AIRFLOW-INDUCED RANDOM VIBRATION PROPAGATION IN AN AIRFOIL STRUCTURE: A NUMERICAL STUDY COMBINING LES AND SEM, Junjie Limei, Qihang Qin, Xun Wang, Shahram Khazaie, Proceedings of the International Congress on Sound and Vibration, ISBN:[9788994021423] (2025)

The interaction between airflow and the wing skin could induce vibrations in the wing structure, carrying valuable information about the aircraft's structural condition. To develop a promising passive structural health monitoring (SHM) approach, it is important to understand the flow induced vibration in terms of the source distribution, frequency content, and propagation features. In this paper, ...

[12] Low-carbon concretes: natural diffusion and migration in a non-steady-state regime, Gayelle Fahed, Stephanie Bonnet, Anthony Soive, Fib Symposium, pp. 323-333, ISBN:[9782940643295] (2025)

Durability models for chloride transport typically use the apparent diffusion coefficient (Dapp) as a key indicator. This coefficient reflects the effective rate at which chlorides penetrate the material under steady state diffusion conditions and is typically used in combination with an aging factor () to for material evolution through hydration and microstructural changes (precipitati...

[13] The first European benchmark exercise on squeeze flow testing of high-performance carbon fibre sheet moulding compounds, Connie Qian, Miro Duhovic, Dominic Schommer, Florian Gortner, Andreas Gebhard, Thomas Neumeyer, Marcel Olma, Louis Schreyer, Luise Karger, Martin Hohberg, Hao Yuan, Anna Julia Imbsweiler, Leah Senn Ramirez, Sepehr Simaafrookhteh, Jan Ivens, Stepan V. Lomov, Gerben Bieleman, Wouter Grouve, Francois Mahe, Christophe Binetruy, Andreas Kapshammer, Zoltan Major, Dmitry S. Ivanov, Jonathan P.H. Belnoue, Anatoly Koptelov, Jakub Jakimow, Yvonne Aitomaki, Dimitra Ramantani, Materials Research Proceedings, Vol. 54, pp. 676-685, ISBN:[9781644903599], Materials Research Forum LLC (2025), doi:10.21741/9781644903599-73

High performance C SMCs typically consist of long carbon fibre reinforcement with high fibre content and can be compression moulded at elevated temperatures and pressures to form parts with complex geometries. Squeeze flow testing has been increasingly adopted for experimentally characterising the flow behaviour of C SMCs, but the reliability and repeatability of the testing results are low due to...

[14] Influence of mussel growth on mooring line drag coefficients in uniform currents, Proceedings of the 6th International Conference on Renewable Energies Offshore (RENEW 2024, 19-21 November 2024, Lisbon, Portugal)., N. Emamdoost, F. Schoefs, M. Maduka, J. C. Thomas, K. Thiagarajan, Innovations in Renewable Energies Offshore Proceedings of the 6th International Conference on Renewable Energies Offshore Renew 2024, pp. 401-410, ISBN:[9781032905570], CRC Press (2025), doi:10.1201/9781003558859-44

The bio colonization phenomenon can be considered as a macro ecological consequence in the marine offshore sector, which affects the aging and hydrodynamic loading of underwater components of marine renewable energy structures such as mooring lines and power cables. Researchers have conducted a wide range of studies on marine biodiversity characteristics affected by site location, water compositio...

[15] ADDED MASS AND DRAG COEFFICIENTS OF BIOFOULED MOORING CHAINS IN WAVES, Krish Thiagarajan, Franck Schoefs, Nazila Emamdoost, Maduka Maduka, Jean Christophe Thomas, Proceedings of ASME 2025 6th International Offshore Wind Technical Conference Iowtc 2025, ISBN:[9780791889282], American Society of Mechanical Engineers (2025), doi:10.1115/IOWTC2025-165256

Offshore wind turbines are located in water depths where sunlight penetration can encourage marine growth on underwater surfaces. Consequences of so called biofouling are increased drag forces, rapid onset of corrosion and resultant higher inspection and maintenance costs. Experiments were conducted in a wave tank at the Ocean Resources and Renewable Energy (ORRE) laboratory at the University of M...

[16] REVIEW OF SOFT FOULING IMPACT ON FLOATING OFFSHORE WIND TURBINES: RESEARCH GAPS IN LONG ALGAE MORPHOLOGICAL AND MECHANICAL CHARACTERISTICS, Nazila Emamdoost, Franck Schoefs, Krish Thiagarajan, Justin Dumay, Jean Christophe Thomas, Proceedings of ASME 2025 6th International Offshore Wind Technical Conference Iowtc 2025, ISBN:[9780791889282], American Society of Mechanical Engineers (2025), doi:10.1115/IOWTC2025-165242

Recent significant developments in marine structural design and optimization for renewable energy and aquaculture technologies have led to renewed discussions on environmental aspects, with a focus on enhancing the understanding of biofouling characteristics. Biofouling is characterized by the colonization and growth of seaweed species on marine structures, and is generally classified into hard an...

[17] Evaluating Resonance Mitigation for Monopile-Supported Offshore Wind Turbine Considering Soil-Foundation-Structure Interaction Using a Passive Energy Dissipation Device, Marcus Vinicius Girao de Morais, Philip Alkhoury, Mourad Ait-Ahmed, Abdul-Hamid Soubra, Proceedings of ISFOG 2025 (2025), doi:10.53243/ISFOG2025-575

This paper evaluates the vibration reduction of a DTU 10MW monopile supported offshore wind turbine(OWT) using a three dimensional pendulum tuned mass damper (3D PTMD). A three dimensional (3D) finite element (FE)model considering the OWT superstructure, the monopile foundation and the surrounding soil together with a 3D PTMDplaced at the tower top was developed making use of FE code Abaqus/Standa...

[18] AI-CFD Based Analysis for Propellant Management in Cryogenic Tanks, Y Le Guennec, Y Blacodon, S Tollis, T Defoort, J Aguado, D Borziachello, 1st international Symposium on AI and Fluid Mechanics (2025)

Sloshing simulations play a crucial role in the design of cryogenic tanks. In particular, analyzing the evolution of the center of mass helps mitigate damaging sloshing phenomena. Additionally, other key quantities, such as pressure distribution on the tank walls and fluid velocity, can be extracted from the simulation results. This study focuses on transient diphasic fluid dynamics involving both...

[19] Deep learning simulations of self-heating using physics-informed neural networks: determination of fatigue limits for laminated composites, Laurent Gornet, Journees Nationales sur les Composites 2025 (2025)

The objective of this study is to determine the fatigue properties of a high strength unidirectional carbon/epoxy laminate. The study focuses on reconstructing the fatigue characteristics of the carbon/epoxy elementary ply using a neural network. The neural networks, which represent the experimental data, are implemented while satisfying thermal models that describe the self heating of laminated c...

[20] Fonctionnalisation passive de pieces composites fabriquees par procede TFP, Peng Yu, Nahiene Hamila, Jessy Simon, Sebastien Comas-Cardona, Christophe Binetruy, Journees Nationales sur les Composites 2025 (2025)

Fonctionnalisation passive de pieces composites fabriquees par procede TFP...

[21] Comparing traditional surrogate modelling and neural fields for vehicle crash simulation data, Thibaut Defoort, Yves Le Guennec, Jose Vicente Aguado, Domenico Borzacchiello, SIA Simulation numerique 2025 (2025)

In this study, we investigate the performance of classical surrogate modeling and neural fields for vehicle crash simulation, focusing on data that describe shell like structures undergoing large deformations via a Lagrangian framework. While traditional surrogate modeling remains appealing forspecialized physical simulations, particularly when data are limited, machine learning techniques such as...

[22] Study of the plasticity of pure titanium and cobalt at temperature through in situ thermomechanical testing using X-ray diffraction and backscattered electrons, Ines Addi, Pierre-Antoine Dubos, Baptiste Girault, David Gloaguen, 26eme Congres Francais de Mecanique (2025)

L'etude vise a caracteriser le comportement mecanique en temperature et en elasto plasticite du titane pur monophase de structure hexagonale compacte, et du cobalt pur biphase de structure hexagonale compacte avec une phase cubique a faces centrees residuelle. Pour cela, des essais in situ sont effectues combinant des sollicitations thermomecaniques a des analyses en diffraction des rayons...

[23] Influence de la variable histoire sur les predictions d'un modele d'endommagement par champ de phase, Abdelmalek Barki, Jihed Zghal, Laurent Gallimard, Isabelle Bruant, Nicolas Chevaugeon, 26e Congres Francais de Mecanique (2025)

The phase field damage model has gained considerable attention over the past decades. In its original formulation [5], the irreversibility condition of damage must be respected, requiring the resolution of a constrained variational inequality. This irreversibility constraint was simplified for thePF AT2 model by introducing a history variable, as proposed by [11]. Damage evolution is driven by thi...

[24] Montage d'essai pour les materiaux architectures 2D a maille triangulaire, Marc Louis Maurice Francois, 26e Congres Francais de Mecanique (2025)

A new testing set up for 2D architectural materials with equilateral triangular unit cell is shown. It allows the generation of any type of 2D stress or strain tensor. It is controlled using a conventional 1D testing machine, and by setting two angles on the setup. Measurement is performed using 2D virtualimage correlation. The setup generates a regular kinematic field (Cauchy Born type) at the bo...

[25] Developpement d'une methode de creation et d'optimisation de trajectoires de mors pour le formage par etirage de produits minces, Basile Allard, Tudor Balan, Cyrille Baudouin, Valentine Legrand, Adrien Leygue, 26e Congres Francais de Mecanique (CFM 2025) (2025)

Developpement d'une methode de creation et d'optimisation de trajectoires de mors pour le formage par etirage de produits minces....

[26] Sensitivity-based optimization of test configurations for parameters identification using full field measurements, Ninon Serrurier, Pascal Bouda, Sylvia Feld-Payet, Thomas Fourest, Julien Rethore, 2025 SEM Annual Conference (2025)

In dynamic, the material properties are typically established through the implementation of testing methodologies based on homogeneous stress/strain states. Recent advances in optical technology have enabled the identification of dynamic material parameters through the use of full field measurement and inverse methods. In this approach, the specimen design is crucial, as it must be sensitive to th...

[27] Assessment of Hybrid RANS-LES and WALE Formulations for Wake and Resistance Prediction of the BB2 Submarine, Noh Abidin, Frederic Grondin, Pol Muller, Jean-Francois Sigrist, Proceedings of the 27th Numerical Towing Tank Symposium (NuTTS 2025) (2025)

Submarine hydrodynamics presents unique challenges in accurately predicting flow separation, wake structure, and resistance due to complex geometry and turbulent behaviour at high Reynolds (Re) numbers. Traditional Reynolds Averaged Navier Stokes (RANS) approaches are often limited in resolving unsteady flow structures and turbulence in the near and far regions. To address these limitations, hybri...

[28] Thermo-Chemo-Mechanical Modeling of Thermosetting Composites : Study of Cure-Induced Deformations, Sourour Traouli, Rima Sfar Zbed, Mael Peron, Vincent Sobotka, Steven Le Corre, Jago Pridie, Journees Nationales sur les Composites 2025 (2025)

During the curing process of unidirectional thermosetting composite laminates, various coupled thermo chemo mechanical phenomena induce residual deformations that significantly influence the final dimensions and mechanical properties of the parts. The aim of this study is to provide a detailed experimental characterization and propose a modeling framework to predict these deformations throughout t...

[29] Comparaison d'algorithmes de resolution de contact frottant sur des problemes a solutions multiples, V Rey, Congres Francais de Mecanique (2025)

In this paper, we propose to compare 3 numerical methods dedicated to the frictional contact problems with Coulomb model for friction: Nitsche method, augmented Lagrangian and convex optimization (via primal dual algorithm). Those methods are applied on two mechanical problems with large friction coefficient possessing either 2 or an infinite number of solutions. The influence of the numerical par...

[30] Can we reliably predict in-plane and out-of-plane permeability of a reference permeable medium? Insights from an international modeling benchmark using a standard reference porous medium, Masoud Bodaghi, Mostafa Nikzad, Cristian Lira, Andreas Endruweit, A Albayraktar, I Afgan, S Cassola, Christophe Binetruy, D Droste, M Duhovic, M Faizan, S Guessesma, L Karger, S Kperegueni, A Leitao, S Lomov, S Mokli, P Mulye, D May, M Matveev, J Machado, C Park, M Rouhi, S Schlegel, T Schmidt, M Shakoor, Elena Syerko, E Sozer, R Umer, D Weitze, 24th International Conference on Composite Materials (ICCM24) (2025)

Accurate prediction of the permeability tensor in textile reinforcements is essential for simulating and optimizing liquid composite molding (LCM) processes. However, permeability predictions often vary widely due to differences in micro and mesostructure representation, boundary conditions, and identification techniques, compounded by reinforcement distortions and dual scale flow in liquid compos...

[31] Analysis of the long-term hygroscopic ageing behavior of bio-composite sandwich structures with acoustic emission, Yuan Wu, Pascal Casari, Sylvain Freour, Jamal Fajoui, Marianne Perrin, Marie-Laetitia Pastor, Xiaojing Gong, JNC 2025 - Les Journees Nationales sur les Composites (2025)

This work investigates the long term hygroscopic ageing behavior of bio based sandwich structures with balsa core and glass fiber laminate skins, through the experimental characterization based on the water immersion test monitored by AE wave velocity measurement, as well as the numerical modeling based on the Dual Fick diffusion model. Based on the relationships between moisture content, AE wave ...

[32] Modelisation chimio-mecanique de pates de ciment exposees aux attaques sulfatiques externes, Anthony Soive, Syed Yasir Alam, Ahmed Loukili, Rencontres Universitaires de Genie Civil (2025)

Les materiaux cimentaires exposes aux sulfates se degradent a cause de reactions physicochimiques en leur sein. Lexpansion resultante est usuellement attribuee a la pression de cristallisation de lettringite qui se forme dans un milieu supersature et dans les petits pores. Dun point de vue numerique, la plupart des modeles sinspirent des travaux de Tixier et Mobasher dans lesquels une partie de la...

[33] Effect of sand liquefaction on the first natural frequency of a monopile-supported offshore wind turbine using a non-linear three-dimensional finite element model, Kassem Dib, Philip Alkhoury, Abdul-Hamid Soubra, Fouad Kaddah, Proceedings of ISFOG 2025 (2025), doi:10.53243/ISFOG2025-497

Monopile supported Offshore Wind Turbines (OWTs) are dynamically sensitive structures and theirfoundations must be designed with special consideration for cyclic/dynamic loading conditions, especially in seismicregions. The most significant effect of earthquake loads on OWTs is the possible liquefaction at the construction site. Indeed,liquefaction may affect the dynamics of the OWT and particular...

[34] Pile anchors of floating offshore wind farms subjected to lateral cyclic loadings in different directions, Ashraf Ahmed, Philip Alkhoury, Zheng Li, Tanguy Coquio, Abdul-Hamid Soubra, Proceedings of ISFOG 2025 (2025), doi:10.53243/ISFOG2025-535

This paper presents a numerical study to investigate the behaviour of pile anchors used to support Floating Offshore Wind Turbines (FOWTs). In conventional FOWT farms, each anchor is attached to a single FOWT and thus the anchor is said unshared with the other neighbouring FOWTs and it is subjected to a single unidirectional irregular loading. In order to reduce the high costs of FOWT farms, the b...

[35] Influence of overload on the propagation of 3D short fatigue cracks, Lucas Sanciet-Munier, Nathalie Limodin, Jean-Yves Buffiere, Jean-Francois Witz, Julien Rethore, Michel Coret, Ghita Filali, Yves Gaillard, Michel Fleuriot, Andrew King, Joel Lachambre, Arnaud Weck, 12th European Solid Mechanics Conference (2025)

The influence of tensile overload on fatigue crack growth of a short 3D crack has been monitored in 3D using X ray tomography, and displacement fields computation with digital volume correlation....

[36] Heat transfer simulation of stationary shoulder friction stir welding on an AA6061 aluminium alloy, Tanguy Fajwisiewicz, Matthieu Guillo, Guillaume Racineux, Jean-Christophe Roux, Eric Feulvarch, FSWP2025 Conference on Friction Stir Welding and Processing (2025)

Stationary shoulder friction stir welding (SSFSW) is an FSW variant producing sound welding joints with a higher efficiency and surface finish than conventional FSW. The Rigid ALE finite element approach was extended to develop a numerical model considering the strong thermomechanical coupling involved in this welding process. Results showed that the numerical model exhibited a close agreement wit...

[37] Coupling and decoupling multi-physical phenomena during the forming of reinforced organic matrix composite materials, Mael Peron, Journees Nationales sur les Composites 2025 (2025)

Organic matrix composite material are submitted to various and coupled multi physical phenomena during manufacturing (e.g. heat transfer, matrix transformation, hydric transfer, induced deformations, mechanical behaviour evolution...) that lead to the development of residual stresses and strains. Numerous scientific questions still need to be answered concerning both the characterization of the di...

[38] Etude multi-echelle du fluage des liants cimentaires bas carbone par indentation instrumentee, Imane Bekrine, Benoit Hilloulin, Ahmed Loukili, 23e Journees Scientifiques du (RF)2B 2025 (2025)

La transition vers des materiaux de construction bas carbone necessite de mieux comprendre le comportement au fluage des liants alternatifs, encore peu maitrise a ce jour. Ce travail developpe une approche multi echelles combinant essais experimentaux avances et modelisation numerique pour affiner la caracterisation viscoelastique des phases cimentaires. Une methodologie innovante, Auto NI MEB, a ...

[39] Occurence of mechanosorption phenomena during the processing of a plant fiber composite, Benjamin Gaud, Mael Peron, Amandine Celino, Sylvain Freour, Journees Nationales sur les Composites 2025 (2025)

The hygric absorption of plant fibers in biobased composites leads to swelling and plasticization of the various polymers constituting the composite (matrix + fibers). Indeed, moisture impacts their mechanical properties and those of the associated composite. An optimum initial water content for the fibers has been found to be around 7%. This water content, which is critical for the production of ...

[40] Actes des RUGC 2025 - Volume 3 : Prix Jeunes Chercheuses, Jeunes Chercheurs (Rene Houpert), Emmanuel Roziere, Franck Taillandier, Rencontres Universitaires de Genie Civil 2025 (2025)

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[41] A comparison of MCOL and CEL approach for ship-FOWT collision assessment, Palaniswamy Chandrasekaran Abhemanyu, Ye Pyae Sone Oo, Herve Le Sourne, Patrick Kaeding, Thomas Lindemann, 10th International Conference on Marine Structures (MARSTRUCT 2025), pp. 235-243, CRC Press (2025), doi:10.1201/9781003642411-29

Collisions between ships and Floating Offshore Wind Turbines (FOWTs) pose a challenge to the offshore wind industry. Thus, this study aims to develop a framework for numerical simulations of the collision using the Coupled Eulerian Lagrangian (CEL) approach in LS DYNA. The parameters governing the Fluid Structure Interaction (FSI) modelled using the CEL approach are calibrated by confronting the r...

[42] Caracterisation de la decohesion dynamique des materiaux composites a matrice organique (CMO), Bastien Lammens, Gerald Portemont, Julien Berthe, Rian Seghir, Julien Rethore, 26eme Congres Francais de Mecanique (2025)

Les composites stratifies a matrice organique sont de plus en plus utilises dans le domaine aeronautique pour reduire la masse de la structure. Cependant, ces materiaux peuvent etre soumis a des conditions extremes et notamment des impacts a hautes vitesses. Un des mecanismes dendommagement associe a ces chargements est le delaminage, large decohesion macroscopique du milieu inter laminaire qui pe...

[43] Structure and Thermal Properties of Bio-Based Blends from Functionalized Lignin for Additive Manufacturing, Meriem Bouchetara, Mustapha Nouri, Ghinwa El Hajj Sleiman, Mahfoud Tahlaiti, Ahmed Koubaa, Sofiane Belhabib, Simon Claudie, Clement Dumont, Mathieu Sauthier, Sofiane Guessasma, Polymer Blends & Eurofillers 2025 (2025)

The integration of bio based materials into Additive Manufacturing (AM) is one of today's challenges, particularly with the rise of 4D printing. AM enables a sustainable alternative to traditional petrochemical materials, while meeting growing demands for a reduced environmental footprint. The aim of this study is to improve the compatibility of lignin with poly (lactic acid) (PLA) and polyamide (...

[44] CHARACTERIZATION OF CYCLIC HYGROTHERMAL SWELLING AND SHRINKAGE BEHAVIOR OF BALSA WOOD AND GFRP-BALSA SANDWICH STRUCTURES, Yuan Wu, Pascal Casari, Jamal Fajoui, Sylvain Freour, Mouna Bouziane, 14th International Conference on Sandwich Structures (ICSS-14) (2025)

The objective of developing bio based composite sandwich structures with greener core materials is to facilitate the decarbonization of industries such as aviation and maritime. This field of research has received increasing attention over the past decades. For example, balsa wood has emerged as a highly promising alternative to foam or honeycomb cores, offering a lightweight, rapidly renewable an...

[45] Modelisation numerique des glissements inter-plis dans un renfort cousu (NCF) a l'echelle macroscopique, Jessy Simon, Nahiene Hamila, Journees Nationales sur les Composites 2025 (2025)

Modelisation numerique des glissements inter plis dans un renfort cousu (NCF) a l'echelle macroscopique...

[46] Study of the staggering method applied to pass-to-pass gaps in automated fibre placement (AFP), Felix Thebault, Alexandre Clement, Sylvain Freour, Gwenole Le Moal, Pascal Casari, Journees Nationales sur les Composites 2025 (2025)

Automated fiber placement is a process for manufacturing complex geometry parts from thermoset composite materials, used in the aerospace industry. This technology requires to leave a gap between the strips deposited by successive passes in order to avoid overlaps of material. These pass to pass gaps cause the appearance of weakly reinforced areas, reducing mechanical performance. To mitigate the ...

[47] Comportement mecanique des sols fins en lien avec leur microstructure initiale, Mengyu Ma, Fares Bennai, Mahdia Hattab, Pierre-Yves Hicher, Francois Nicot, 26e Congres Francais de Mecanique (2025)

The microstructure of clayey soil plays a key role in its mechanical behavior. During sedimentation, particle interactions are influenced by pH: low pH conditions promote edge to face flocculation, forming card house like structure, while high pH environments favor face to face particle stacking and denser arrangements. A specific sample preparation method enabled direct SEM observation of these s...

[48] Nouvelle strategie de stereo-correlation d'images numeriques pour l'etude de la fragmentation dynamique., Fabien Daheron, Julien Rethore, Rian Seghir, Aurihona Wolff, Gilles Besnard, 26e Congres Francais de Mecanique (2025)

Nouvelle strategie de stereo correlation d'images numeriques pour l'etude de la fragmentation dynamique....

[49] Dynamic responses of monopile-supported DTU 10MW offshore wind turbine subjected to wind, wave and seismic loads, Kassem Dib, Philip Alkhoury, Abdul-Hamid Soubra, Fouad Kaddah, 5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025), Vol. Proceedings of ISFOG 2025 (2025), doi:10.53243/ISFOG2025-495

Multi megawatt monopile supported Offshore Wind Turbines (OWTs) are widely adopted to efficientlyextract the steady offshore wind energy. They are dynamically sensitive structures to excitations and their foundations needto be designed with special concern for cyclic/dynamic loading. In this regard, three dimensional (3D) non linear (NL) finiteelement (FE) dynamic analyses are becoming crucial to ...

[50] Automated in situ thermomechanical analysis of hexagonal materials under EBSD, Ines Addi, Pierre-Antoine Dubos, Baptiste Girault, Samuel Branchu, David Gloaguen, Thermec'2026 (2025)

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[51] Durability and Efficiency of Energy Piles: A Multi-Year Investigation Under Real Operating Conditions, Roxana Vasilescu, Panagiotis Kotronis, Christophe Dano, Anne-Laure Fauchille, Philippe Gotteland, 3rd International Conference on Energy Geotechnics 2025 (2025)

Energy piles, which serve both as deep foundations and geothermal heat exchangers, are increasingly used to enhance the energy efficiency of buildings. Understanding their long term thermo mechanical behavior is crucial for optimizing their design and operation. This research builds upon a previous study conducted at the wastewater treatment plant in Sep...

[52] Coupled reactive transport and poromechanics modelling of external sulfate attack in cementitious materials, Syed Yasir Alam, Anthony Soive, Ahmed Loukili, 12th International Conference on Fracture Mechanics for Concrete and Concrete Structures, IA-FraMCoS (2025), doi:10.21012/FC12.1346

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[53] Etudes semi-analytiques et numeriques d'une plaque rigide unidimensionnelle soumise a une explosion sous-marine avec prise en compte de la cavitation, Antonin Guerineau, Ye Pyae Sone Oo, Aboulghit El Malki Alaoui, Michel Arrigoni, Herve Le Sourne, 26e Congres Francais de Mecanique (2025)

Etudes semi analytiques et numeriques d'une plaque rigide unidimensionnelle soumise a une explosion sous marine avec prise en compte de la cavitation...

[54] Identification inverse de champs de temperature en pointe de fissure, Camille Crusson, Julien Berthe, Bastien Lammens, Gerald Portemont, Rian Seghir, Julien Rethore, 26e Congres Francais de Mecanique (2025)

La fissuration des polymeres est regie par des phenomenes non lineaires qui rendent difficile la previsionde la propagation des fissures. En particulier, linfluence de la temperature locale sur le comportementa la rupture reste mal identifiee, ce qui limite la comprehension des mecanismes impliques. Lobjectif estici de proposer une methodologie permettant de quantifier a la fois lenergie dissipee ...

[55] Robust estimation of diffusion parameters and measurement error for total chlorides using data from the DeCoF-Re project to develop a Bayesian penetration model, Cedric-Hermann Kidiofinninpan Fofana, Romain Clerc, Franck Schoefs, Athanas Konin, Veronique Bouteiller, Les Journees de Fiabilite des Materiaux et Structures (2025)

Reinforcement corrosion induced by the ingress of chloride ions into concrete constitutes a major source of deterioration in reinforced concrete maritime structures. Reliable prediction of chloride profiles C(z,t), classically described by the diffusion parameters (Csa ; Da) and affected by measurement and estimation errors e(C), is essential for optimizing maintenance strategies. These parameters...

[56] Comprehensive Numerical Hydrodynamic Analysis of Submarine in a Straight Course Simulation Using Wall-Resolved RANS Models, Noh Zainal Abidin, Frederic Grondin, Pol Muller, Jean-Francois Sigrist, 26eme Congres Francais de Mecanique (2025)

This research explores several critical factors affecting CFD based prediction accuracy of submarine hydrodynamics and builds upon previous work on preliminary mesh and solver benchmarking. A scaled submarine model is analyzed numerically using the Reynolds Averaged Navier Stokes (RANS) turbulence model at a Reynold number (Re) of 3.6×106 with wall resolved meshes targeting y+ <5. Based on prior w...

[57] Modelisation de l'hydratation des ciments avec laitiers : reactions chimiques et cinetique d'hydratation, Jack Atallah, Academic Journal of Civil Engineering, Vol. 43, pp. 999-1009, Academic Journal of Civil Engineering (2025), doi:10.26168/ajce.43.1.84

La penetration des chlorures represente une des causes de degradation des structures en beton armee, en particulier en milieu marin. L'incorporation de laitier de haut fourneau a demontre une amelioration significative de la durabilite de ces dernieres. En vue de predire par modelisation multi echelles les proprietes de transport des materiaux cimentaires a base de laitier necessaires aux modeles ...