Three-dimensional pavement analysis with nonlinear subgrade materials

Chen-Ming Kuo, Chien Wei Huang

Research output: Contribution to journalReview article

6 Citations (Scopus)

Abstract

The nonlinear models of pavement base and subgrade were briefly reviewed. Subroutines of the three-dimensional finiteelement analysis in the ABAQUS package were developed for nonlinear behavior of a coarse-grained base and subgrade. The programs were validated by comparing them with the theoretical-solution-based program BISAR and the 2D finite-element program ILLI-PAVE. Significant discrepancy was found between the 3D analysis and the 2D axisymmetric analysis, especially for the deformation results. It was also found that the stiffness matrices of the nonlinear materials were not symmetrical, which causes accuracy problems in those programs based on 2D axisymmetry formulations. The results of nonlinear analysis and linear analysis were also compared. It was concluded that the determinations of the resilient modulus for the linear models is critical to interpret the behaviors of nonlinear materials.

Original languageEnglish
Pages (from-to)537-544
Number of pages8
JournalJournal of Materials in Civil Engineering
Volume18
Issue number4
DOIs
Publication statusPublished - 2006 Aug 1

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Pavements
Subroutines
ABAQUS
Nonlinear analysis
Stiffness matrix

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "The nonlinear models of pavement base and subgrade were briefly reviewed. Subroutines of the three-dimensional finiteelement analysis in the ABAQUS package were developed for nonlinear behavior of a coarse-grained base and subgrade. The programs were validated by comparing them with the theoretical-solution-based program BISAR and the 2D finite-element program ILLI-PAVE. Significant discrepancy was found between the 3D analysis and the 2D axisymmetric analysis, especially for the deformation results. It was also found that the stiffness matrices of the nonlinear materials were not symmetrical, which causes accuracy problems in those programs based on 2D axisymmetry formulations. The results of nonlinear analysis and linear analysis were also compared. It was concluded that the determinations of the resilient modulus for the linear models is critical to interpret the behaviors of nonlinear materials.",
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Three-dimensional pavement analysis with nonlinear subgrade materials. / Kuo, Chen-Ming; Huang, Chien Wei.

In: Journal of Materials in Civil Engineering, Vol. 18, No. 4, 01.08.2006, p. 537-544.

Research output: Contribution to journalReview article

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AU - Huang, Chien Wei

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AB - The nonlinear models of pavement base and subgrade were briefly reviewed. Subroutines of the three-dimensional finiteelement analysis in the ABAQUS package were developed for nonlinear behavior of a coarse-grained base and subgrade. The programs were validated by comparing them with the theoretical-solution-based program BISAR and the 2D finite-element program ILLI-PAVE. Significant discrepancy was found between the 3D analysis and the 2D axisymmetric analysis, especially for the deformation results. It was also found that the stiffness matrices of the nonlinear materials were not symmetrical, which causes accuracy problems in those programs based on 2D axisymmetry formulations. The results of nonlinear analysis and linear analysis were also compared. It was concluded that the determinations of the resilient modulus for the linear models is critical to interpret the behaviors of nonlinear materials.

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