Debonding simulation of fibre-matrix interfaces of FRP composites with reactive force field

Kui Lin, Tao Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


This paper presents a study on all-atom molecular dynamics (MD) simulations of fibre–matrix interfaces in fibre-reinforced polymer (FRP) composites, with a focus on the effect of fibre sizing. The reactive force field ReaxFF was used in the simulations. The sizing treatment was found to significantly increase the interface toughness while has little effect on the peak stress of fibre–matrix interface. The characteristics of the fracture surfaces and the scission of C-O bonds observed in the simulations are consistent with pervious experimental observations. The developed modelling method opens up a new avenue of investigating the deterioration mechanism of FRP under combined mechanical-chemical-thermal actions.

Original languageEnglish
Article number125304
JournalConstruction and Building Materials
Publication statusPublished - 20 Dec 2021


  • Debonding
  • FRP
  • Interface
  • MD simulations
  • Mechanochemical process
  • Reactive force field
  • Sizing

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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