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Liste des publications du LMPS

Affichage des publications 461 à 470 sur 1449 au total

Materials and structures in mechanics

Theoretical and numerical simulation of bulk and surface ultrasonic waves scattering in microstructures with elongated grains

In the present work, the grain scattering induced attenuation coefficient is obtained for longitudinal bulk waves in untextured cubic polycrystalline materials with elongated grains using theoretical 2D and 3D proposed models. Also, a semi…

Juan Camilo Victoria Giraldo, Bing Tie

16ème Colloque National en Calcul de Structures (CSMA 2024) -

Biomechanics

Development of high-fidelity numerical models for 3D printing of patient-specific anatomy

This work, a part of the RHU-EndoVx project, is carried out in collaboration with the Hospital Marie Lannelongue (91). Its primary objective is to create realistic 3D-printed models of abdominal aortic aneurysms (AAA) for surgical training and…

Loïc Guezou, Andrea Barbarulo, Bing Tie

16ème Colloque National en Calcul de Structures (CSMA 2024) -

Materials and structures in mechanics

Theoretical analysis of the dimensionality of ultrasonic attenuation in polycrystalline materials with elongated grains

In the present work, the grain scattering-induced attenuation coefficient is obtained for longitudinal bulk waves in untextured cubic polycrystalline materials with elongated grains using proposed 2D and 3D theoretical models. These models are…

Juan Camilo Victoria Giraldo, Bing Tie, Jérôme Laurent, Alain Lhémery, Denis Solas

Journal of Physics: Conference Series -

Structural mechanics

A parallel implementation of a mixed multiscale domain decomposition method applied to the magnetostatic simulation of 2D electrical machines

This article introduces a mixed domain decomposition method (DDM) designed to meet the requirements of advanced numerical optimization in electrical machines. The primary objective is to adapt the multiscale LATIN method, primarily used for…

Aurélia Ruda, François Louf, Pierre-Alain Boucard, Xavier Mininger, Thomas Verbeke

Finite Elements in Analysis and Design -

Structural mechanics

Un élément de contact poutre-poutre en petits glissements pour la modélisation du fretting au sein des conducteurs aériens pour le transport d'électricité

L'étude porte sur le développement et l'implémentation d'un élément de contact ponctuel poutre-poutre en petits glissements et grandes rotations, avec prise en compte du contact normal par multiplicateur de Lagrange, adapté pour la modélisation du…

Karim AÏT AMMAR, Pierre-Alain Guidault, Pierre-Alain Boucard, Julien Said, Fikri Hafid

16ème Colloque National en Calcul de Structures (CSMA 2024) -

Engineering Sciences

Improved electro‐actuation property of dielectric elastomer composites regulated by one‐dimensional CaCu 3 Ti 4 O 12 @ TiO 2 core–shell construction

Abstract Dielectric elastomers (DEs) are typical electro‐active polymers that can achieve an electro‐actuated deformation under an applied electric field. However, obtaining a large low‐field‐actuated strain of DEs is still a key challenge, which is…

Yanfei Gao, Hang Zhao, Na Zhang, Chuying Zhang, Huiqin Wang, Tongguang Zhu, Jinbo Bai

Journal of Applied Polymer Science -

Structural mechanics

A Small sliding beam-to-beam contact element for the simulation of overhead conductors under tension and bending

This study addresses RTE's current research on numerically assessing the lifetime of overhead conductors submitted to wind-induced fretting fatigue, aiming to enhance cost-effective asset management strategies. Our focus is on developing a…

Karim AÏT AMMAR, Pierre-Alain Guidault, Pierre-Alain Boucard, Julien Said, Fikri Hafid

ECCOMAS Congress 2024 - The 9th European Congress on Computational Methods in Applied Sciences and Engineering -

Vibrations

A Bloch analysis extended to weakly disordered periodic media

This paper develops an asymptotic method to predict the dispersion curves of a \rYL{weakly disordered} medium. The \rYL{disordered} coefficients of the original acoustic equation are related to periodic coefficients through a change of variables,…

Yilun Li, Régis Cottereau, Bing Tie

Journal of Sound and Vibration -