Y. Charles

Experimental investigation of the effect of the carburisation process on the magnetic response of a low-carbon steel

Salim Ben Ayed, Patrick Fagan, Mathieu Domenjoud, Y. Charles et autres

Carburising-quenching is a standard thermo-chemical treatment used to harden the surface of mechanical parts. The technique is based on the diffusion of carbon atoms at high temperature, followed by a rapid cooling, which induces a structural transformation of austenite into martensite. Given …

fr (code pays fourni par la source)

A coupled fully kinetic hydrogen transport and ductile phase-field fracture framework for modeling hydrogen embrittlement

Abdelrahman Hussein, Y. Charles, Jukka Kömi, Vahid Javaheri

Modeling hydrogen embrittlement (HE) is a long-standing engineering challenge, which has experienced significant developments in recent years. Yet, there is a gap in modeling the effect of the kinetics of hydrogen segregation at dislocations and the resulting interaction between ductile tearing and …

fi, fr (code pays fourni par la source)

Finite element modeling of transient hydrogen trapping in a network of randomly sized voids

S. Chroeun, Y. Charles, F. Christien, A. Dréano et autres

International audience

Determination of Mechanical Properties of Cambodian Sandstone using the Brazilian Test and the Semi Circular Bending Test

Sochita Dy, Vannei Sry, Fabien Cazes, Y. Charles

Sandstone was widely used in Cambodian ancient structures such as temples, bridges, and statues. However, studies on its mechanical properties including tensile strength, Young’s modulus, and Poisson’s ratio remain insufficiently studied. This study aims to determine the mechanical properties of Cambodian sandstone. …

kh, fr (code pays fourni par la source)

Tritium retention in the ITER/DEMO actively cooled tungsten monoblock in the presence of neutron-induced defects

E.A. Hodille, James Dark, Rémi Delaporte-Mathurin, C. Grisolia et autres

Tritium retention in ITER like divertor monoblock is simulated with FESTIM adding trapping induced by neutron damage in the tungsten armor. The simulated scenario is a 10 MWm −2 heat flux representing an exposure near the strike line during an ITER attached …

fr, us (code pays fourni par la source)

Hydrogen assisted crack propagation in a metallic polycrystalline aggregate

Augustin Perrier-Michon, Y. Charles, A. Naït-Ali, Gilbert Hénaff et autres

International audience

fr (code pays fourni par la source)

Finite Element modeling of the carburizing-quenching process in steels

Salim BEN AYED, Y. Charles, Laurent Daniel

Carburizing-quenching is a thermochemical surface treatment designed to harden the surface of steels and make them more resistant to friction, wear, and corrosion. It involves the diffusion of carbon atoms at high temperature, followed by rapid cooling to induce a phase transformation …

fr (code pays fourni par la source)

Finite element modeling of hydrogen instantaneous trapping in porosities

S. Chroeun, Y. Charles, Jonathan Mougenot, Monique Gaspérini

The competition between instantaneous hydrogen trapping on dislocations and in voids is studied in the context of continuum mechanics and ductile damage (Gurson-Tvergaard-Needleman model) by finite element simulations. The numerical model is applied to a small-scale yielding configuration from the literature, in …

fr (code pays fourni par la source)

Modeling Hydrogen Transport and Trapping in Vacancy Clusters: Application to the ITER-Like Monoblocks

S. Chroeun, Salim BEN AYED, Shihao Bian, T. Wauters et autres

fr (code pays fourni par la source)

Finite element modeling at the crystal scale of the hydrogen-plasticity Interactions in bcc iron

Minh-Duc Nguyen, Y. Charles, Monique Gaspérini, Joseph Paux et autres

International audience

fr (code pays fourni par la source)

Refining the identification methodology for describing heterogeneous Fe-Si materials using the viscoplastic self-consistent approach

Laura Herard, Y. Charles, Mihaela Teodorescu, Brigitte Bacroix et autres

Electrical steels stand as the predominant soft ferromagnetic materials in the power transmission industry. The magnetic properties of these steels are linked to a very specific crystallographic texture composed of centimeter-sized grains oriented along the Goss component. The formation of this texture …

fr, de, us (code pays fourni par la source)

Phase field modelling of freezing-induced cracking

Quan‐Hoang Vuong, Y. Charles, Minh‐Quan Thai, Jia Li

Fragile materials such as concrete or rocks, under natural conditions, are subject to freeze/thaw cycles, which can induce damage over time and, ultimately, propagate macro-cracks. In this work, a phase-field approach is used to investigates the impact of a single frost cycle …

fr, vn (code pays fourni par la source)