Influence of the cohesive zone model shape parameter on asphalt concrete fracture behavior

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

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

23 Scopus citations

Abstract

A cohesive zone model (CZM) has been effective in exploring fracture behavior in various materials. In general, the cohesive parameters associated with material strength and cohesive fracture energy are considered more important than a CZM softening shape. However, the influence of the CZM softening shape becomes significant as the relative size of the fracture process zone compared to the structure size increases, which is relevant for asphalt concrete and other quasi-brittle materials. In this study, the power-law CZM is employed to investigate the influence of the CZM softening shape on asphalt concrete fracture. Three dimensional disk-shaped compact tension (DC(T)) test simulation is performed considering bulk (background) material viscoelasticity.

Original languageEnglish (US)
Title of host publicationMultiscale and Functionally Graded Materials - Proceedings of the International Conference, FGM IX
Pages730-735
Number of pages6
DOIs
StatePublished - 2008
Externally publishedYes
Event9th International Conference on Multiscale and Functionally Graded Materials, FGM IX - Oahu Island, HI, United States
Duration: Oct 15 2006Oct 18 2006

Publication series

NameAIP Conference Proceedings
Volume973
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference9th International Conference on Multiscale and Functionally Graded Materials, FGM IX
Country/TerritoryUnited States
CityOahu Island, HI
Period10/15/0610/18/06

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

Keywords

  • Asphalt concrete
  • Disk-shaped compact tension (DC(T)) test simulation
  • Fracture
  • Power-law CZM
  • Viscoelasticity

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