Paper Title:

Asphalt Pavement Aging and Temperature Dependent Properties through a Functionally Graded Viscoelastic Model, Part-II: Applications

Periodical Materials Science Forum (Volumes 631 - 632)
Main Theme Multiscale, Multifunctional and Functionally Graded Materials
Edited by Akira Kawasaki, Akinaga Kumakawa and Masayuki Niino
Pages 53-58
DOI 10.4028/www.scientific.net/MSF.631-632.53
Citation Eshan V. Dave et al., 2009, Materials Science Forum, 631-632, 53
Online since October, 2009
Authors Eshan V. Dave, William G. Buttlar, Glaucio H. Paulino
Keywords Correspondence Principle, Finite Element Model (FEM), Functionally Graded Material (FGM), Numerical Simulation, Viscoelasticity
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This is the second article in a series of two papers describing simulation of functionally graded viscoelastic properties in asphalt concrete pavements. The techniques developed are applicable to other viscoelastic material systems with continuous, spatial grading of material properties. A full-depth asphalt concrete pavement has been simulated to demonstrate the applicability and importance of the graded viscoelastic analysis method. Based on the graded finite elements developed by Kim and Paulino[1], Buttlar et al. [2] used graded finite elements to determine typical responses to tire loading for an aged asphalt concrete pavement. In the current study, a similar pavement section is studied using the viscoelastic graded analysis (rather than elastic). Graded, layered and homogeneous material variations were used for a series of simulations, and the results from different approaches were compared.

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