An extended FE strategy for transition from continuum damage to mode I cohesive crack propagation

Medientyp: E-Artikel
Titel: An extended FE strategy for transition from continuum damage to mode I cohesive crack propagation
Beteiligte: Comi, Claudia; Mariani, Stefano; Perego, Umberto
Erschienen: Wiley, 2007
Erschienen in: International Journal for Numerical and Analytical Methods in Geomechanics
Sprache: Englisch
DOI: 10.1002/nag.537
ISSN: 0363-9061; 1096-9853
Schlagwörter: Mechanics of Materials ; Geotechnical Engineering and Engineering Geology ; General Materials Science ; Computational Mechanics
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Beschreibung: <jats:title>Abstract</jats:title><jats:p>An integrated strategy is proposed for the simulation of damage development and crack propagation in concrete structures. In the initial stage of damage growth, concrete is considered to be macroscopically integer and is modeled by a non‐symmetric isotropic non‐local damage model. The transition to the discrete cohesive crack model depends on the local mesh size and is driven by an analytical estimate of the current bandwidth. When a crack is introduced in the model an extended finite element approach is used to follow the propagation path, independent of the background mesh. The proposed methodology is tested on a notched tension specimen and then applied to the analysis of a wedge splitting test. Copyright © 2006 John Wiley & Sons, Ltd.</jats:p>

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