2D and 3D Fracture Modeling of Asphalt Mixture with Randomly Distributed Aggregates and Embedded Cohesive Cracks

A Yin, X Yang, James Yang

Research output: Contribution to journalArticle

25 Citations (Scopus)
11 Downloads (Pure)

Abstract

This paper develops a mesoscale finite element method for realistic modeling of complex cohesive fracture in asphalt mixture with a given gradation. A random aggregate generation and packing algorithm is employed to create 2D and 3D heterogeneous asphalt mixture specimens, and cohesive elements with tension/shear softening laws are inserted into both mastic and aggregate-mastic interfaces to simulate crack initiation and propagation. The nucleation and coalescence of microcracks and propagation of macrocracks in 2D and 3D specimens is realistically modeled in detail with a few important conclusions drawn. The effects of coarse aggregate distributions on performance of asphalt mixture are also evaluated.
Original languageEnglish
Pages (from-to)114-122
Number of pages9
JournalProcedia IUTAM
Volume6
Early online date2 Apr 2013
DOIs
Publication statusPublished - 2013
Externally publishedYes

Bibliographical note

Open access under CC BY-NC-ND license.

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