FEM multiscale analysis of asphaltic pavements including damage

R. F. Soares, Y. R. Kim, D. H. Allen

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

1 Scopus citations

Abstract

A critical point for accurate prediction of asphaltic pavement performance life is to model as many sources of energy dissipation as possible, such as viscoelastic constitutive behavior and crack propagations. It is known from experimental observation that many cracks can occur simultaneously in a pavement structure and that these cracks can coalesce into a single crack that leads to structural failure. A multiscale approach accounts for multiple cracks and provides computational efficiency. This study presents a multiscale computational model for predicting evolution of damage in asphaltic pavements. Two scales are included in the analysis, termed: global scale (pavement structure) and local scale (RVE of asphalt concrete mixtures). The model produces damage-dependent behavior of pavements by linking the properties of mixture constituents (local scale) and pavement structural performance (global scale). Damage is included in the forms of cracks modeled with viscoelastic cohesive zones. The model uses material properties at the constituent level (local scale) as inputs, and a FEM time-marching algorithm. It performs simultaneous computations on both local and global scale. Preliminary stage of the modeling at this time emphasizes computational results depending on different material properties of mixture constituents to monitor the impact of different materials on asphaltic fracture behaviour and pavement failure.

Original languageEnglish (US)
Title of host publicationPoromechanics IV - 4th Biot Conference on Poromechanics
EditorsHoe I. Ling, Andrew Smyth, Raimondo Betti
PublisherDEStech Publications
Pages517-522
Number of pages6
ISBN (Electronic)9781605950068
StatePublished - Jan 1 2009
Event4th Biot Conference on Poromechanics - New York, United States
Duration: Jun 8 2009Jun 10 2009

Publication series

NamePoromechanics IV - 4th Biot Conference on Poromechanics

Other

Other4th Biot Conference on Poromechanics
CountryUnited States
CityNew York
Period6/8/096/10/09

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ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Condensed Matter Physics
  • Mechanics of Materials

Cite this

Soares, R. F., Kim, Y. R., & Allen, D. H. (2009). FEM multiscale analysis of asphaltic pavements including damage. In H. I. Ling, A. Smyth, & R. Betti (Eds.), Poromechanics IV - 4th Biot Conference on Poromechanics (pp. 517-522). (Poromechanics IV - 4th Biot Conference on Poromechanics). DEStech Publications.