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journal article

Data-driven multiscale modeling in mechanics

Karapiperis, Konstantinos  
•
Stainier, Laurent
•
Ortiz, Michael
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2021
Journal of the Mechanics and Physics of Solids

We present a Data-Driven framework for multiscale mechanical analysis of materials. The proposed framework relies on the Data-Driven formulation in mechanics (Kirchdoerfer and Ortiz 2016), with the material data being directly extracted from lower-scale computations. Particular emphasis is placed on two key elements: the parametrization of material history, and the optimal sampling of the mechanical state space. We demonstrate an application of the framework in the prediction of the behavior of sand, a prototypical complex history-dependent material. In particular, the model is able to predict the material response under complex nonmonotonic loading paths, and compares well against plane strain and triaxial compression shear banding experiments.

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Type
journal article
DOI
https://doi.org/10.1016/j.jmps.2020.104239
Author(s)
Karapiperis, Konstantinos  

EPFL

Stainier, Laurent
Ortiz, Michael
Andrade, José E
Date Issued

2021

Publisher

Pergamon

Published in
Journal of the Mechanics and Physics of Solids
Volume

147

Article Number

104239

End page

104239

Subjects

Data-Driven mechanics

•

Multiscale modeling

•

Granular materials

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LMD  
Non-EPFL  
FunderFunding(s)Grant NumberGrant URL

United States Army Research Office

W911NF-19-1-0245

Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/246373
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