Numerical modelling of interface formation during the injection overmoulding process

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Abstract

There is currently a demand for numerical tools to support the design process of overmoulded structures as determination of interface strength may currently only be determined reliably from experimentation, which is limiting due to tooling costs. Simulation of the injection overmoulding process represents a complex challenge as the final interface strength is dictated by polymer bonding mechanisms and the microstructure of the interface which are dependent on material characteristics and processing conditions. In this work a multi-phase Computational Fluid Dynamics (CFD) simulation is presented which shows the initial micro-scale development of the interface during overmoulding using the volume of fluid (VOF) method to further understand and simulate the development of the interface morphology. Thus far the numerical model has captured the solidification/melting process and the subsequent development of a stratified flow phenomenon which can explain the formation of complex interfacial features that have been observed experimentally.

Original languageEnglish
Title of host publicationProceedings of the 20th European Conference on Composite Materials, ECCM 2022: composites meet sustainability
EditorsAnastasios P. Vassilopoulos, Véronique Michaud
PublisherEPFL Lausanne
Pages396-402
Number of pages7
Volume4 - Modeling and prediction
ISBN (Electronic)9782970161400
Publication statusPublished - 12 Dec 2022
Event20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 - Lausanne, Switzerland
Duration: 26 Jun 202230 Jun 2022

Conference

Conference20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Country/TerritorySwitzerland
CityLausanne
Period26/06/202230/06/2022

Keywords

  • Computational Fluid Dynamics
  • Injection Overmoulding
  • Interface Formation
  • Simulation
  • Thermoplastic Composites

ASJC Scopus subject areas

  • Ceramics and Composites

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