A large deformation finite element formulation for subgrade soil compaction

Kaiming Xia, Arif Masud, Zhanping You

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Subgrade soil compaction can generate a volumetric locking phenomena if standard displacement-based finite element formulation is used to model the their nearly incompressible limit. This is a potentially problematic issue for pavement compaction for either asphalt or subgrade soil. This paper presents a stabilized large deformation finite element formulation for compaction simulation. The stabilization technique employed here for the mixed displacement-pressure formulation is based on the variational multiscale idea. It is written in the spatial description and is integrated with a smooth surface Cap model for the analysis of materials that can take large compressive stresses but very low tensile stresses. Numerical experiments using hexahedral elements with equal low-order interpolations for both displacement and pressure fields show that the new stabilized formulation can successfully remove volumetric locking. This formulation effectively predicts the compaction density induced by the external loads, which is an attractive feature of the formulation for practical applications in geotechnical/pavement engineering. Copyright ASCE 2008.

Original languageEnglish (US)
Title of host publicationProceedings of the Symposium on Pavement Mechanics and Materials at the Inaugural International Conference of the Engineering Mechanics Institute - Pavements and Materials 2008
Subtitle of host publicationModeling, Testing, and
Pages122-130
Number of pages9
DOIs
StatePublished - 2008
EventSymposium on Pavement Mechanics and Materials at the Inaugural International Conference of the Engineering Mechanics Institute - Pavements and Materials 2008: Modeling, Testing, and Performance - Minneapolis, MN, United States
Duration: May 18 2008May 21 2008

Publication series

NameProceedings of the Symposium on Pavement Mechanics and Materials at the Inaugural International Conference of the Engineering Mechanics Institute - Pavements and Materials 2008: Modeling, Testing, and
Volume334

Other

OtherSymposium on Pavement Mechanics and Materials at the Inaugural International Conference of the Engineering Mechanics Institute - Pavements and Materials 2008: Modeling, Testing, and Performance
CountryUnited States
CityMinneapolis, MN
Period5/18/085/21/08

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Mechanics of Materials
  • Building and Construction

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