Title :

Automatised selection of load paths to construct reduced-order models in computational damage micromechanics: from dissipation-driven random selection to Bayesian optimization

Author(s) :

Goury, Olivier [Auteur]
Deformable Robots Simulation Team [DEFROST ]
Amsallem, David [Auteur]
Bordas, Stéphane Pierre-Alain [Auteur]
University of Luxembourg [Luxembourg]
Liu, Wing Kam [Auteur]
Northwestern University [Evanston]
Kerfriden, Pierre [Auteur correspondant]

Journal title :

Computational Mechanics

Pages :

213–234

Publisher :

Springer Verlag

Publication date :

2016-08

ISSN :

0178-7675

English keyword(s) :

damage mechanics
multiscale
Hyperreduction
model order reduction
computational homogenisation
reduced basis

HAL domain(s) :

Physique [physics]/Mécanique [physics]/Mécanique des structures [physics.class-ph]

English abstract : [en]

In this paper, we present new reliable model order reduction strategies for computational micromechanics. The difficulties rely mainly upon the high dimensionality of the parameter space represented by any load path applied ...
Show more >In this paper, we present new reliable model order reduction strategies for computational micromechanics. The difficulties rely mainly upon the high dimensionality of the parameter space represented by any load path applied onto the representative volume element (RVE). We take special care of the challenge of selecting an exhaustive snapshot set. This is treated by first using a random sampling of energy dissipating load paths and then in a more advanced way using Bayesian optimization associated with an interlocked division of the parameter space. Results show that we can insure the selection of an exhaustive snapshot set from which a reliable reduced-order model (ROM) can be built.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL