Modeling of liquefaction using two-phase FEM with UBC3D-PLM model

Lisa Wobbes, Lars Beuth, Kees Vuik, D.F. Stolle

Research output: Contribution to journalConference articleScientificpeer-review

2 Citations (Scopus)
54 Downloads (Pure)

Abstract

Soil liquefaction describes a loss of strength of saturated sand upon sudden or cyclic loading. A slight disturbance of such a soil’s fabric might lead to severe damage, e.g. the collapse of sea dikes. Accurate modeling of the state transition between saturated soil and a liquefied soil-water mixture, as well as post-liquefaction phenomena, is crucial for the prediction of such damage. However, developing an appropriate numerical model remains a challenging problem, especially when the simulation involves dynamic large deformation processes. In order to make a first step towards an accurate simulation of soil liquefaction, a two-phase formulation of the finite element method (FEM) in conjunction with the elastoplastic UBC3D-PLM model is investigated. The performance of this approach is analyzed based on a shaking table benchmark.
Original languageEnglish
Pages (from-to)349-356
Number of pages8
JournalProcedia Engineering
Volume175
DOIs
Publication statusPublished - 2017
Event1st International Conference on the Material Point Method: Modelling Large Deformation and Soil–Water–Structure Interaction - Deltares, Delft, Netherlands
Duration: 10 Jan 201713 Jan 2017
Conference number: 1
http://mpm2017.eu/home

Keywords

  • MPM
  • elastoplastic model
  • liquefaction
  • cycic loading.

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