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Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):

M. Schwab, J. Gager, H. E. Pettermann:
"Assessing Material Nonlinearities in Large Composite Structures by Predicting Energy Dissipations at the Mesoscale";
Vortrag: 11th World Congress on Compuational Mechanics (WCCM XI), Barcelona; 20.07.2014 - 25.07.2014; in: "Proceedings of the 11th World Congress on Compuational Mechanics", E. Oñate, X. Oliver, A. Huerta (Hrg.); CIMNE, Barcelona (2014), ISBN: 978-84-942844-7-2; S. 3691 - 3702.



Kurzfassung englisch:
Composite materials represent multi-hierarchical systems where effects at several length scales control the overall material behaviour. Nonlinearities such as damage and plasticity typically arise at smaller length scales and their consideration necessitates models of the meso- or microstructure of a given composite. Such analyses are feasible for small computational domains, however, incorporating multiple length scales into large structural analyses requires huge computational effort. The present paper aims at reducing computational cost of large scale analyses by accounting for nonlinearities in an approximate way. To this end, a simulation methodology is introduced which interprets linear elastic structural simulations by recourse to results from nonlinear simulations conducted at smaller length scales. The concept is demonstrated by the example of a Usection beam with variable cross-section in a four point bending test set-up consisting of several layers of textile fabrics.

Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.