Application of graded finite elements for asphalt pavements

William G. Buttlar; Glaucio H. Paulino; Seong Hyeok Song

doi:10.1061/(ASCE)0733-9399(2006)132:3(240)

Application of graded finite elements for asphalt pavements

William G. Buttlar, Glaucio H. Paulino, Seong Hyeok Song

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Asphalt paving layers, particularly the surface course, exhibit vertically graded material properties. This grading is caused primarily by temperature gradients and aging related stiffness gradients. Most conventional existing analysis models do not directly account for the continuous grading of properties in flexible pavement layers. As a result, conventional analysis methods may lead to inaccurate prediction of pavement responses and distress under traffic and environmental loading. In this paper, a theoretical formulation for the graded finite element method is provided followed by an implementation using the user material subroutine (UMAT) capability of the finite element software ABAQUS. Numerical examples using the UMAT are provided to illustrate the benefits of using graded elements in pavement analysis.

Original language	English (US)
Pages (from-to)	240-249
Number of pages	10
Journal	Journal of Engineering Mechanics
Volume	132
Issue number	3
DOIs	https://doi.org/10.1061/(ASCE)0733-9399(2006)132:3(240)
State	Published - Mar 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering

Keywords

Asphalt pavements
Finite element method
Fractures
Material properties

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10.1061/(ASCE)0733-9399(2006)132:3(240)

Cite this

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title = "Application of graded finite elements for asphalt pavements",

abstract = "Asphalt paving layers, particularly the surface course, exhibit vertically graded material properties. This grading is caused primarily by temperature gradients and aging related stiffness gradients. Most conventional existing analysis models do not directly account for the continuous grading of properties in flexible pavement layers. As a result, conventional analysis methods may lead to inaccurate prediction of pavement responses and distress under traffic and environmental loading. In this paper, a theoretical formulation for the graded finite element method is provided followed by an implementation using the user material subroutine (UMAT) capability of the finite element software ABAQUS. Numerical examples using the UMAT are provided to illustrate the benefits of using graded elements in pavement analysis.",

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T1 - Application of graded finite elements for asphalt pavements

AU - Buttlar, William G.

AU - Paulino, Glaucio H.

AU - Song, Seong Hyeok

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AB - Asphalt paving layers, particularly the surface course, exhibit vertically graded material properties. This grading is caused primarily by temperature gradients and aging related stiffness gradients. Most conventional existing analysis models do not directly account for the continuous grading of properties in flexible pavement layers. As a result, conventional analysis methods may lead to inaccurate prediction of pavement responses and distress under traffic and environmental loading. In this paper, a theoretical formulation for the graded finite element method is provided followed by an implementation using the user material subroutine (UMAT) capability of the finite element software ABAQUS. Numerical examples using the UMAT are provided to illustrate the benefits of using graded elements in pavement analysis.

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KW - Finite element method

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Application of graded finite elements for asphalt pavements

Abstract

All Science Journal Classification (ASJC) codes

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