2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 1: Aifantis Intl. Symp. / Multiscale Material Mechanics
| Editors: | Kongoli F, Bordas S, Estrin Y |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 300 pages |
| ISBN: | 978-1-987820-24-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Multi-scale methods for fracture and digital twins
Stephane Bordas1; Pierre Kerfriden2; Lars Beex3;1UNIVERSITY OF LUXEMBOURG, Kirchberg, Luxembourg; 2CARDIFF UNIVERSITY, Cardiff, United Kingdom (Great Britain); 3UNIVERSITY OF LUXEMBOURG, Luxembourg, Luxembourg;
Type of Paper: Plenary
Id Paper: 573
Topic: 1
Abstract:
We review in this presentation recently proposed approaches to reduce the computational expense associated with multi-scale modelling of fracture. In light of two particular examples, we show connections between algebraic reduction (model order reduction and quasi-continuum methods) and homogenisation-based reduction. We open the discussion towards suitable approaches for machine-learning and Bayesian statistical based multi-scale model selection. Such approaches could fuel a digital-twin concept enabling models to learn from real-time data acquired during the life of the structure, accounting for “real” environmental conditions during predictions, and, eventually, moving beyond the “factors of safety” era.[1] O. Goury et al. (2013) A partitioned model order reduction approach to rationalise com- putational expenses in nonlinear fracture mechanics Comp. Meth. App. Mech. Engng.. 256, 169-188.<br />[2] L.A.A.Beex et al.(2014)Quasicontinuum-basedmultiscaleapproachesforplate-likebeam lattices experiencing in-plane and out-of-plane deformation Comp. Meth. App. Mech. En- gng. . 279, 348-378.<br />[3] A. Akbari (2015) Error Controlled Adaptive Multiscale Method For Fracture Modelling in Polycrystalline materials Philosophical Magazine. in press