Mécanique des Matériaux, des Structures et du Vivant ; Ingénierie des Microstructures, Procédés, Anisotropie, Comportement ; Thermomécanique des Procédés et des Interactions Outil-Matière

Voir le site du laboratoire LEM3 :
http://www.lem3.univ-lorraine.fr

Recent Submissions

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  Viscoelastic–viscoplastic model with ductile damage accounting for tension–compression asymmetry and hydrostatic pressure effect for polyamide 66 

  Article dans une revue avec comité de lecture

  SATOURI, Soheil; CHATZIGEORGIOU, George; MERAGHNI, Fodil; ROBERT, Gilles (Elsevier BV, 2025-03)

  This paper proposes a model for predicting the complex inelastic mechanical response of polyamide 66. Polyamide 66 is a semi-crystalline pressure-sensitive polymer that exhibits asymmetric yielding behavior, in which the ...
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  Physics-informed deep homogenization approach for random nanoporous composites with energetic interfaces 

  Article dans une revue avec comité de lecture

  CHEN, Qiang; CHATZIGEORGIOU, George; MERAGHNI, Fodil; CHEN, Xuefeng; YANG, Zhibo (Elsevier BV, 2025-01)

  This contribution presents a new physics-informed deep homogenization neural network model for identifying local displacement and stress fields, as well as homogenized moduli, of nanocomposites with periodic arrays of ...
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  Damping Behavior in a Wide Temperature Range of FeMn-Like High Entropy Shape Memory Alloys 

  Article dans une revue avec comité de lecture

  PELTIER, Laurent; LOHMULLER, P.; MERAGHNI, Fodil; PATOOR, Etienne; LAHEURTE, Pascal; BERVEILLER, Sophie (Springer Science and Business Media LLC, 2022-08)

  In this work, a new class of iron-based high entropy shape memory alloys (HE-SMAs) have been designed, characterized, and optimized. These FeCu-NiMnV alloys (FeMn-like) with damping properties at low and high temperatures ...
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  Elasticity-inspired data-driven micromechanics theory for unidirectional composites with interfacial damage 

  Article dans une revue avec comité de lecture

  CHEN, Qiang; TU, Wenqiong; WU, Jiajun; HE, Zhelong; CHATZIGEORGIOU, George; MERAGHNI, Fodil; YANG, Zhibo; CHEN, Xuefeng (Elsevier BV, 2024-11)

  We present a novel elasticity-inspired data-driven Fourier homogenization network (FHN) theory for periodic heterogeneous microstructures with square or hexagonal arrays of cylindrical fibers. Towards this end, two ...
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  Advanced modeling of higher-order kinematic hardening in strain gradient crystal plasticity based on discrete dislocation dynamics 

  Article dans une revue avec comité de lecture

  AMOUZOU-ADOUN, Yaovi Armand; JEBAHI, Mohamed; FOREST, Samuel; FIVEL, Marc (Elsevier, 2024-12)

  An extensive study of size effects on the small-scale behavior of crystalline materials is carried out through discrete dislocation dynamics (DDD) simulations, intended to enrich strain gradient crystal plasticity (SGCP) ...
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  Nitsche's method enhanced isogeometric homogenization of unidirectional composites with cylindrically orthotropic carbon/graphite fibers 

  Article dans une revue avec comité de lecture

  DU, Xiaoxiao; CHEN, Qiang; CHATZIGEORGIOU, George; MERAGHNI, Fodil; ZHAO, Gang; CHEN, Xuefeng (Elsevier BV, 2024-08)

  An isogeometric homogenization (IGH) technique is constructed for the homogenization and localization of unidirectional composites with radially or circumferentially orthotropic carbon/graphite fibers. The proposed theory ...
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  Numerical Investigation on the Inelastic Instability of Cruciform Columns: Effect of Material and Geometric Parameters 

  Chapitre d'ouvrage scientifique

  BELHADJAMOR, Meriem; BEN BETTAIEB, Mohamed; MEZLINI, Salah; ABED-MERAIM, Farid  (Springer Nature Switzerland, 2024-08)

  This work deals with a numerical investigation of the onset of inelastic instability in cruciform columns using the limit-point method. In this aim, a nonlinear buckling analysis was developed to determine the limit-point ...

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