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http://dx.doi.org/10.12989/csm.2019.8.2.111

ED-FEM multi-scale computation procedure for localized failure  

Rukavina, Ivan (Universite de Technologie de Compiegne / Sorbonne Universites, Laboratoire Roberval, Centre de Recherche Royallieu)
Ibrahimbegovic, Adnan (Universite de Technologie de Compiegne / Sorbonne Universites, Laboratoire Roberval, Centre de Recherche Royallieu)
Do, Xuan Nam (Universite de Technologie de Compiegne / Sorbonne Universites, Laboratoire Roberval, Centre de Recherche Royallieu)
Markovic, Damijan (EDF, DIPNN / Direction Technique)
Publication Information
Coupled systems mechanics / v.8, no.2, 2019 , pp. 111-127 More about this Journal
Abstract
In this paper, we present a 2D multi-scale coupling computation procedure for localized failure. When modeling the behavior of a structure by a multi-scale method, the macro-scale is used to describe the homogenized response of the structure, and the micro-scale to describe the details of the behavior on the smaller scale of the material where some inelastic mechanisms, like damage or plasticity, can be defined. The micro-scale mesh is defined for each multi-scale element in a way to fit entirely inside it. The two scales are coupled by imposing the constraint on the displacement field over their interface. An embedded discontinuity is implemented in the macro-scale element to capture the softening behavior happening on the micro-scale. The computation is performed using the operator split solution procedure on both scales.
Keywords
multi-scale modeling; strong coupling; embedded discontinuity; operator split;
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Times Cited By KSCI : 5  (Citation Analysis)
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