NUMERICAL SIMULATION OF MICROSCALE CRACK PROPAGATION IN GLASS-EPOXY COMPOSITES USING DISCRETE FIBRES, MATRIX AND INTERFACE

Alexander Seidel, Anastasiia Khudiakova, Dennis Bublitz, Klaus Drechsler

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

The material behaviour of an E-glass-fibre-reinforced epoxy is modelled on the microscale with discrete fibres, matrix and interface to predict the crack initiation and propagation process. Therefore, statistically relevant representative volume elements (RVEs) are generated using an adapted algorithm. An RVE fulfils periodicity in its geometry, mesh and its boundary conditions. Advanced material models are used for the matrix (Drucker-Prager plasticity with triaxiality-dependent damage) and the interfaces (Cohesive Zone Modelling). The model is calibrated with experimental data. The crack propagation is simulated for a tough and a brittle fibre-matrix interface. The results are considered qualitatively feasible.

OriginalspracheEnglisch
TitelModeling and Prediction
Redakteure/-innenAnastasios P. Vassilopoulos, Veronique Michaud
Herausgeber (Verlag)Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
Seiten9-16
Seitenumfang8
ISBN (elektronisch)9782970161400
PublikationsstatusVeröffentlicht - 2022
Veranstaltung20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 - Lausanne, Schweiz
Dauer: 26 Juni 202230 Juni 2022

Publikationsreihe

NameECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
Band4

Konferenz

Konferenz20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Land/GebietSchweiz
OrtLausanne
Zeitraum26/06/2230/06/22

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