Development and application of a structured clay model in FLAC

Jie Yang, Zhen Yu Yin, Yin Fu Jin, Dong Mei Zhang, Hong Wei Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

FLAC is widely used in rock and geotechnical engineering.Currently FLAC provides only a few constitutive models, which limits its range and accuracy of application.Based on the developing platform provided by FLAC, a bounding surface plasticity model for structured clays is implemented into FLAC under the FISH environment.Firstly, the key techniques and method of implementation are introduced with the basic principles of bounding surface model.In order to evaluate the accuracy of the model implementation under different stress paths, the numerical tests of different conventional laboratory tests on single element are performed and compared to the results obtained by FORTRAN program.Further more, a biaxial shearing test showing the development of shear band is then simulated to show the model ability on simulating a multi-element model, the mesh dependency and loading velocity effect are also analyzed.Finally, a case of cut slope is simulated to examine the application of the implemented model of structured clay in FLAC in geotechnical engineering.

Original languageEnglish
Pages (from-to)739-747
Number of pages9
JournalJisuan Lixue Xuebao/Chinese Journal of Computational Mechanics
Volume34
Issue number6
DOIs
Publication statusPublished - 1 Dec 2017
Externally publishedYes

Keywords

  • Clay
  • Constitutive model
  • Finite difference
  • Numerical analysis
  • Shear band

ASJC Scopus subject areas

  • Computational Mechanics
  • Modelling and Simulation
  • Applied Mathematics

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