Maio 2014 vol. 1 num. 1 - 10th World Congress on Computational Mechanics

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DETERMINATION OF THE INITIATION OF DELAMINATION IN FIBER COMPOSITES

Simon*, J.-W. ; Stier, B. ; Reese, S. ;

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Predicting the initiation of delamination is essential for the design of composite structures, because delamination is a major failure mode of layered composites. The according delamination onset criteria can be evaluated on the basis of stress-strength relations, which requires an accurate representation of the through-the-thickness stress distribution, which is delicate for thin shell-like structures. Thus, in this paper, a solid-shell finite element is utilized, which allows for incorporating a fully three-dimensional, anisotropic, micromechanically motivated material model, still being suited for application to thin structures. Moreover, locking phenomena are cured by using both the EAS and the ANS concept, and numerical efficiency is ensured through reduced integration.

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Palavras-chave: Fiber-reinforced composite, Finite element technology, Solid-shell concept, Enhanced strain formulation, Reduced integration.,

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DOI: 10.5151/meceng-wccm2012-18367

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Como citar:

Simon*, J.-W.; Stier, B.; Reese, S.; "DETERMINATION OF THE INITIATION OF DELAMINATION IN FIBER COMPOSITES", p. 1304-1318 . In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 2358-0828, DOI 10.5151/meceng-wccm2012-18367

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