Three-dimensional heterogeneous fracture simulation of asphalt mixture under uniaxial tension with cohesive crack model

A. Yin, X. Yang, C. Zhang, G. Zeng, Zhenjun Yang

    Research output: Contribution to journalArticle

    34 Citations (Scopus)

    Abstract

    A three-dimensional (3D) heterogeneous fracture modeling technology is presented to simulate complex crack evolution in quasi-brittle asphalt mixture. In this technology, the random aggregate generation and packing algorithm is employed to create 3D heterogeneous numerical model of asphalt mixture, and the cohesive elements with the tension/shear softening laws are inserted into both the mastic matrix and the aggregate–mastic interfaces as potential cracks. The nucleation and coalescence of microcracks, and inception and propagation of main macrocracks are carefully studied under uniaxial tension and temperature of −10 °C. The effects of the averaged coarse aggregate size and the cohesive fracture parameters on performance of asphalt mixture are also evaluated.
    Original languageEnglish
    Pages (from-to)103-117
    JournalConstruction and Building Materials
    Volume76
    Issue numberFebruary 2015
    Early online date12 Dec 2014
    DOIs
    Publication statusPublished - 1 Feb 2015

    Bibliographical note

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    Keywords

    • Asphalt mixture
    • 3D heterogeneous fracture modeling
    • Random aggregates
    • Cohesive elements
    • Crack evolution

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