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Liste des publications du LMPS

Affichage des publications 781 à 790 sur 1765 au total

Mathematics

Empowering PGD-based parametric analysis with Optimal Transport

The Proper Generalized Decomposition (PGD) is a Model Order Reduction framework that has been proposed to be able to do parametric analysis of physical problems. These parameters may include material properties, boundary conditions, etc. With this…

D. Muñoz, S. Torregrosa, Olivier Allix, Francisco Chinesta

Finite Elements in Analysis and Design -

Electric power

Effects of Filtering and Current-angle Adjustment on the Multi-Material Topology Optimization of a 3-phase Stator

This paper investigates MMTO methods to design 3-phase PMSM stators, showing that a usual gradient descent leads to non-manufacturable local optima. A multi-material density filtering consistent with the antiperiodic boundary conditions smooths the…

Théodore Cherrière, S. Hlioui, Luc Laurent, François Louf, Hamid Ben Ahmed, Mohamed Gabsi

IEEE Transactions on Magnetics -

Construction durable

Highlighting the impact of the construction history of a Cultural Heritage building through a vibration-based Finite Element model updated by Particle Swarm Algorithm

Numerical models play a primary role in Cultural Heritage preservation. Nevertheless, the design of a realistic model remains challenging due not only to the complex behavior of masonry but also to the asynchronous building phases, the damage…

Arnaud Montabert, E. Diego Mercerat, Hélène Lyon-Caen, Maria Lancieri

International Journal of Architectural Heritage -

Neural and Evolutionary Computing

NN-mCRE: a modified Constitutive Relation Error framework for unsupervised learning of nonlinear state laws with physics-augmented Neural Networks

This article proposes a new approach to train physics-augmented neural net-works with observable data to represent mechanical constitutive laws. To trainthe neural network and learn thermodynamics potentials, the proposed methoddoes not rely on…

Antoine Benady, Emmanuel Baranger, Ludovic Chamoin

International Journal for Numerical Methods in Engineering -

Materials

Model-based dimensional NDE from few X-ray radiographs: Application to the evaluation of wall thickness in metallic turbine blades

The extraction of 3D dimensional measurements based on a limited number of 2D X-ray radiographs of a part would offer a significant speed-up of quality control procedures in industry. However, there are challenges with respect to both measurements…

Cédric Fragnaud, Clément Remacha, Julian Andrés Betancur Acevedo, Stéphane Roux

Precision Engineering -

Solid mechanics

Upper bounds estimates of the distance to cubic or orthotropic elasticity

We address the problem, not of the determination-which usually needs numerical methods-but of an accurate analytical estimation of the distance of a raw elasticity tensor to cubic symmetry and to orthotropy. We point out that there are not one but…

Rodrigue Desmorat, Boris Kolev

Comptes Rendus. Mécanique -

Differential Geometry

Objective rates as covariant derivatives on the manifold of Riemannian metrics

The subject of so-called objective derivatives in Continuum Mechanics has a long history and has generated varying views concerning their true mathematical interpretation. Several attempts have been made to provide a mathematical definition that…

Boris Kolev, Rodrigue Desmorat

Archive for Rational Mechanics and Analysis -

Catalysis

External-Shell Oxygen Enabling the Local Environment Modulation of Unsaturated NbN 3 for Efficient Electrosynthesis of Hydrogen Peroxide

Single atom catalysts with tunable coordination structure have shown grand potential in flexibly altering the selectivity of oxygen reduction reaction (ORR) towards desired pathway. However, the local coordination number modulation on the single…

Dingding Li, Run-Xi Zhu, Zheng Han, Lei Bai, Jianting Zhang, Ruixin Xu, Weilong Ma, Liangpeng Nie, Yi Wang, Jinbo Bai, Hang Zhao, Ji-Quan Liu, Kunyue Leng, Ya-Qiong Su, Yunteng Qu

ACS Applied Materials & Interfaces -