G
Gergely Molnár
Researcher at Institut national des sciences Appliquées de Lyon
Publications - 20
Citations - 278
Gergely Molnár is an academic researcher from Institut national des sciences Appliquées de Lyon. The author has contributed to research in topics: Sodium silicate & Brittleness. The author has an hindex of 9, co-authored 20 publications receiving 176 citations. Previous affiliations of Gergely Molnár include University of Lyon & École Normale Supérieure.
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An open-source Abaqus implementation of the phase-field method to study the effect of plasticity on the instantaneous fracture toughness in dynamic crack propagation
TL;DR: In this article, the authors investigated the effect of plasticity on dynamic fracture propagation and observed the increment of the instantaneous dynamic stress intensity factor during the acceleration stage of the crack without introducing a rate dependent critical fracture energy.
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Cellulose crystals plastify by localized shear.
Gergely Molnár,David Rodney,Florian Martoïa,Pierre J.J. Dumont,Yoshiharu Nishiyama,Karim Mazeau,Laurent Orgéas +6 more
TL;DR: Atomistic simulations are used to determine the plastic shear resistance of cellulose crystals and analyze the underpinning atomic deformation mechanisms, demonstrating how the complex and adaptable atomic structure of crystalline cellulose controls its anisotropic elastoplastic behavior.
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Densification dependent yield criteria for sodium silicate glasses - An atomistic simulation approach
TL;DR: In this paper, the authors carried out atomic scale simulations to analyze the plastic response of a series of soda-silicate glasses with increasing sodium content, and proposed a general yield criterion for soda-silicate glasses in which density is an internal variable.
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Toughness or strength? Regularization in phase-field fracture explained by the coupled criterion
TL;DR: In this article, the phase-field method and coupled energy and stress-based criterion have attracted much attention due to their adaptability in modeling fractures, and they have compared well with real-life experiments.
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Sodium effect on static mechanical behavior of MD-modeled sodium silicate glasses
TL;DR: In this paper, the structural and elastic mechanical properties of xNa(2)O-(100-x)SiO2 sodium silicate glasses were computed and analyzed at different scales, using atomistic simulations and coarse-grain methods based on physical principles.