Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)

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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

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) ...
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 ...
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 ...
Spatio-temporal physics-informed neural networks to solve boundary value problems for classical and gradient-enhanced continua

Article dans une revue avec comité de lecture

NGUYEN, Duc-Vinh; JEBAHI, Mohamed; CHINESTA SORIA, Francisco (Elsevier BV, 2024-08)

Recent advances have prominently highlighted physics informed neural networks (PINNs) as an efficient methodology for solving partial differential equations (PDEs). The present paper proposes a proof of concept exploring ...
Development and implementation of a new computational strategy for the prediction of elastoplastic buckling

Article dans une revue avec comité de lecture

BEL HADJ AMOR, M.; BEN BETTAIEB, Mohamed; MEZLINI, S.; ABED-MERAIM, Farid (World Scientific Pub Co Pte Ltd, 2024-07)

This study proposes an innovative computational strategy to predict the initiation of elastoplastic buckling in shell structures. This strategy is developed in connection with ABAQUS/Standard Finite Element (FE) code. ...
Flip-chip technology at room temperature: A new design of microtube-based interconnect for improved mechanical and electrical properties

Article dans une revue avec comité de lecture

DESBORDES, Cloé; PESCI, Raphaël; PIOTROWSKI, Boris; MAILLIART, Olivier; RAPHOZ, Natacha (Elsevier BV, 2024-10)

Flip-chip assembly of photonic components can be achieved at room temperature by using 10 μm pitch interconnects made of metallised oxide microtubes inserted into ductile reception pads. In order to reduce the electrical ...
Procédé de fabrication additive de pièces métalliques et pièces obtenues.

Brevet

PELTIER, Laurent (2023-10)

Selon un procédé de fabrication additive d’une pièce (2, 3, 4) par fusion laser de couches de poudre métallique, on utilise une poudre d’un alliage présentant une transformation de phase austénitique en phase martensitique ...