Details
| Original language | English |
|---|---|
| Title of host publication | Multiscale Modeling of Heterogeneous Structures |
| Editors | Peter Wriggers, Olivier Allix, Jurica Soric |
| Place of Publication | Cham |
| Publisher | Springer Verlag |
| Pages | 183-203 |
| Number of pages | 21 |
| ISBN (electronic) | 978-3-319-65463-8 |
| ISBN (print) | 9783319654621 |
| Publication status | Published - 2018 |
| Event | International Workshop on Multiscale Modeling of Heterogeneous Structures, MUMO 2016 - Dubrovnik, Croatia Duration: 21 Sept 2016 → 23 Sept 2016 |
Publication series
| Name | Lecture Notes in Applied and Computational Mechanics |
|---|---|
| Volume | 86 |
| ISSN (Print) | 1613-7736 |
Abstract
The simulation of mechanical responses of structures subjected to cyclic loadings for a large number of cycles remains a challenge. The goal herein is to develop an innovative computational scheme for fatigue computations involving non-linear mechanical behaviour of materials, described by internal variables. The focus is on the Large Time Increment (LATIN) method coupled with a model reduction technique, the Proper Generalized Decomposition (PGD). Moreover, a multi-time scale approach is proposed for the simulation of fatigue involving large number of cycles. The quantities of interest are calculated only at particular pre-defined cycles called the “nodal cycles” and a suitable interpolation is used to estimate their evolution at the intermediate cycles. The proposed framework is exemplified for a structure subjected to cyclic loading, where damage is considered to be isotropic and micro-defect closure effects are taken into account. The combination of these techniques reduce the numerical cost drastically and allows to create virtual S-N curves for large number of cycles.
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Computer Science(all)
- Computational Theory and Mathematics
Cite this
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Multiscale Modeling of Heterogeneous Structures. ed. / Peter Wriggers; Olivier Allix; Jurica Soric. Cham: Springer Verlag, 2018. p. 183-203 (Lecture Notes in Applied and Computational Mechanics; Vol. 86).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - A model reduction technique in space and time for fatigue simulation
AU - Bhattacharyya, Mainak
AU - Fau, Amélie
AU - Nackenhorst, Udo
AU - Néron, David
AU - Ladevèze, Pierre
N1 - Publisher Copyright: © Springer International Publishing AG 2018. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - The simulation of mechanical responses of structures subjected to cyclic loadings for a large number of cycles remains a challenge. The goal herein is to develop an innovative computational scheme for fatigue computations involving non-linear mechanical behaviour of materials, described by internal variables. The focus is on the Large Time Increment (LATIN) method coupled with a model reduction technique, the Proper Generalized Decomposition (PGD). Moreover, a multi-time scale approach is proposed for the simulation of fatigue involving large number of cycles. The quantities of interest are calculated only at particular pre-defined cycles called the “nodal cycles” and a suitable interpolation is used to estimate their evolution at the intermediate cycles. The proposed framework is exemplified for a structure subjected to cyclic loading, where damage is considered to be isotropic and micro-defect closure effects are taken into account. The combination of these techniques reduce the numerical cost drastically and allows to create virtual S-N curves for large number of cycles.
AB - The simulation of mechanical responses of structures subjected to cyclic loadings for a large number of cycles remains a challenge. The goal herein is to develop an innovative computational scheme for fatigue computations involving non-linear mechanical behaviour of materials, described by internal variables. The focus is on the Large Time Increment (LATIN) method coupled with a model reduction technique, the Proper Generalized Decomposition (PGD). Moreover, a multi-time scale approach is proposed for the simulation of fatigue involving large number of cycles. The quantities of interest are calculated only at particular pre-defined cycles called the “nodal cycles” and a suitable interpolation is used to estimate their evolution at the intermediate cycles. The proposed framework is exemplified for a structure subjected to cyclic loading, where damage is considered to be isotropic and micro-defect closure effects are taken into account. The combination of these techniques reduce the numerical cost drastically and allows to create virtual S-N curves for large number of cycles.
UR - http://www.scopus.com/inward/record.url?scp=85037825187&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-65463-8_10
DO - 10.1007/978-3-319-65463-8_10
M3 - Conference contribution
AN - SCOPUS:85037825187
SN - 9783319654621
T3 - Lecture Notes in Applied and Computational Mechanics
SP - 183
EP - 203
BT - Multiscale Modeling of Heterogeneous Structures
A2 - Wriggers, Peter
A2 - Allix, Olivier
A2 - Soric, Jurica
PB - Springer Verlag
CY - Cham
T2 - International Workshop on Multiscale Modeling of Heterogeneous Structures, MUMO 2016
Y2 - 21 September 2016 through 23 September 2016
ER -