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XFEM modeling of interface failure in adhesively bonded fiber-reinforced polymers

 
: Kästner, Markus; Müller, Sebastian; Hirsch, Franz; Pap, Jozsef-Sebastian; Jansen, Irene; Ulbricht, Volker

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Advanced engineering materials 15 (2016), Nr.3, S.417-426
ISSN: 1438-1656
ISSN: 1615-7508
Deutsche Forschungsgemeinschaft DFG
SPP 1712;
Intrinsische Hybridverbunde für Leichtbautragstrukturen - Grundlagen der Fertigung, Charakterisierung und Auslegung
Englisch
Zeitschriftenaufsatz
Fraunhofer IWS ()
FRP; extended finite element method (XFEM); damage; homogenization; interface

Abstract
This paper addresses the multi-scale simulation of heterogeneous materials with a special emphasis on the modeling of internal discontinuities. In a homogenization context the local material structure is discretized by the extended finite element method which uses an enriched displacement approximation in combination with a cohesive zone model. This approach is applied to predict the effective material behavior of a fiber reinforced polymer and is then used to investigate the interaction of the fiber-matrix interface with an adhesive layer. All simulations are validated by corresponding experimental data.

: http://publica.fraunhofer.de/dokumente/N-370060.html