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

Alexander Seidel, Anastasiia Khudiakova, Dennis Bublitz, Klaus Drechsler

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationModeling and Prediction
EditorsAnastasios P. Vassilopoulos, Veronique Michaud
PublisherComposite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
Pages9-16
Number of pages8
ISBN (Electronic)9782970161400
StatePublished - 2022
Event20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 - Lausanne, Switzerland
Duration: 26 Jun 202230 Jun 2022

Publication series

NameECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
Volume4

Conference

Conference20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Country/TerritorySwitzerland
CityLausanne
Period26/06/2230/06/22

Keywords

  • Abaqus
  • Crack Propagation
  • Finite Elements
  • GFRP
  • Microscale Simulation

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