CHARACTERISTIC LENGTH-INSENSITIVE PHASE-FIELD DAMAGE MODELING OF CRACKS IN FIBER-REINFORCED COMPOSITES WITH FFT SOLVER

X. Ma, M. Shakoor, Y. Chen, D. Vasiukov, S. V. Lomov, C. H. Park

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

Abstract

Using an FFT-based solver for phase-field modeling of damage is attractive because it can enable massive parallelization. Before applying it for complex analysis, the characteristic length, an important parameter of phase-field damage models, needs a prudent discussion. This parameter is commonly treated as a material parameter since it can hugely affect the predicted mechanical behavior. However, for heterogeneous materials, our recent studies have shown that the choice of the characteristic length affects not only the macroscopic mechanical behavior but also the local crack patterns. This makes it difficult to get proper macro-responses and local crack patterns simultaneously. Consequently, this work addresses the implementation of a lengthinsensitive phase-field model with an FFT solver to deal with the above issue. Meanwhile, a criterion for choosing a proper characteristic length for this phase-field model is also proposed in this work.

Original languageEnglish
Title of host publication20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
EditorsAnastasios P. Vassilopoulos, Veronique Michaud
PublisherComposite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
Pages637-644
Number of pages8
VolumeD
ISBN (Electronic)9782970161400
DOIs
Publication statusPublished - 30 Jun 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

  • composites
  • damage modeling
  • Fast Fourier Transform (FFT)
  • phase-field

ASJC Scopus subject areas

  • Ceramics and Composites

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