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Liste des publications du LMPS

Affichage des publications 941 à 950 sur 1641 au total

Solid mechanics

A data-driven approach using Neural Networks for real-time modeling and simulation of structures with many welded points under impact

Large structural problems with complex localized behaviour are extremely difficult to solve. In the past, intrusive and non-intrusive domain decomposition methods (DDMs) have been developed to address this challenge. To further reduce computational…

Afsal Pulikkathodi, Elisabeth Longatte-Lacazedieu, Ludovic Chamoin, Juan-Pedro Berro Ramirez, Laurent Rota, Malek Zarroug

International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering -

Structural mechanics

Development of a simplified model for the transient dynamic analysis of bolted assemblies

Bolted joints are essential components of assemblies as they are usually the site of significant stresses as well as numerous non-linearities. In addition, they are widely encountered in mechanical engineering, especially in aeronautics (e.g., 3,000…

Quentin Lançon, Pierre-Alain Guidault, Pierre-Alain Boucard, Nicolas Vallino

COMPLAS 2023 - XVII International Conference on Computational Plasticity -

Structural mechanics

Wireframe Modeling of Overhead Conductors for Life Time Prediction

Predicting the lifespan of overhead power conductors is one of the major challenges of the energy sector as it would allow the implementation of more relevant asset management strategies. In this context, wind loadings are particularly studied…

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

COMPLAS 2023 - XVII International Conference on Computational Plasticity -

Structural mechanics

Development of a Homogenized Thermomechanical Model for the Optimized Design of Fiber Optic Gyroscopes

Fiber Optic Gyroscopes (FOG) are high-precision measurement devices that measure the rotation rate of a fiber optic coil along its axis thanks to the Sagnac effect. Two counterpropagative waves are sent into an optical fiber coil. The…

Pierre Busnel, Jeremie Pillon, François Louf, Maxime Rattier, Pierre-Alain Boucard

COMPLAS 2023 - XVII International Conference on Computational Plasticity -

Materials

Stability of the critical distance method for fretting cracking prediction: influence of microstructure and crack nucleation size

To provide lifetime predictions of metal pieces under fretting-fatigue loading, the crack initiation process has to be understood. However, there is no consensus in the literature over the crack nucleation length. The objective of this study is to…

Hugo Lannay, Siegfried Fouvry, Bruno Berthel, Camille Gandiolle, Jan Neggers, Gabriel Paramucchio

Tribology International -

Engineering Sciences

Shear loading dominated damage mechanisms and strain localization studied by in situ 3D laminography imaging and Digital Volume Correlation for AA2198-T8

Damage and strain changes during shear dominated loading were assessed in situ via synchrotron laminography. In combination with digital volume correlation (DVC), local strain fields inside the material were determined thanks to the contrast…

Ante Buljac, Xiang Kong, Lukas Helfen, François Hild, Thilo F. Morgeneyer

Mechanics of Materials -

Engineering Sciences

Estimation of laser-induced damage depth from surface image features

In laser damage experiments, damage initiation and growth are typically monitored by imaging the surface of the tested fused silica sample, ignoring their bulk morphology. The depth of a damage site in fused silica optics is considered to be…

Guillaume Hallo, Yanis Abdelmoumni-Prunes, Sylvain Grosjean, Jérôme Néauport, Chloé Lacombe, Laurent Lamaignère, François Hild

Applied optics -

Engineering Sciences

Proper Generalized Decomposition stereocorrelation to measure kinematic fields for high speed impact on laminated glass

Stereocorrelation (SC) is a powerful tool for measuring 3D surface deformations in mechanical tests. However, it may suffer from convergence issues for large displacements or speckle changes. A global space-time formulation is proposed herein using…

Xuyang Chang, Corentin Le Gourriérec, François Hild, Léonard Turpin, Myriam Berny, Stéphane Roux

Computer Methods in Applied Mechanics and Engineering -