Mesoscopic Modeling of Concrete under Different Moisture Conditions and Loading Rates

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    Abstract

    We present a mesoscopic finite element model for simulating the rate- and moisture-dependent material behavior of concrete. The idealized mesostructure consists of aggregates surrounded by an interfacial transition zone embedded in the bulk material. We examine the influence of the most significant constitutive model parameters on global and local response. Different distributions and shapes of the aggregates are tested. Three model parameter sets, corresponding to different moisture conditions, are employed in the analysis of two specimens in which the applied loading rate is significantly different. The results indicate that the loading rate has a stronger influence than the saturation level on fracture processes and global strength.
    OriginalsprogEngelsk
    TitelUnderstanding the Tensile Properties of Concrete
    RedaktørerJ. Weerheijm
    Antal sider27
    UdgivelsesstedCambridge
    ForlagWoodhead Publishing
    Publikationsdato2013
    Sider268–294
    Kapitel9
    ISBN (Trykt)978-0-85709-045-3
    ISBN (Elektronisk)978-0-85709-045-4
    DOI
    StatusUdgivet - 2013
    NavnCivil and Structural Engineering Series
    Nummer48

    Emneord

    • Mechanical Properties
    • Mesoscopic Modeling
    • Concrete
    • Finite Element Analysis

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