Behavior of the Abaqus CDP model in simple stress states

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    In order to use the Abaqus Concrete Damaged Plasticity (CDP) material model in simulations of reinforced concrete structures, one has to understand the effect of various parameters of the material model. Although most of the material parameters can be determined from standard concrete tests, some parameters need more advanced tests to be determined. In impact simulations one often has only limited material data available, and it makes therefore sense to study the parameter sensitivity of the material model in order to fix realistic parameter values. In this paper, the sensitivity of the simulation response with respect to two model parameters is studied: the dilation angle and the tensile to compressive meridian ratio. The sensitivity study is performed in three simple but representative stress states: the uniaxial tension state, the confined uniaxial compressive state and the pure shear state. Finally, it is discussed how these simple stress states relate to the element removal criteria, which is necessary in simulations involving fragmentation.
    Original languageEnglish
    Pages (from-to)87-113
    JournalJournal of Structural Mechanics
    Volume52
    Issue number2
    DOIs
    Publication statusPublished - 16 Aug 2019
    MoE publication typeA1 Journal article-refereed
    EventSuomen XIII Mekaniikkapäivät - Helsinki, Finland
    Duration: 29 Aug 201831 Aug 2018

    Keywords

    • Material modelling
    • Elastic-plastic material with scalar damage
    • Abaqus Concrete Damaged Plasticity

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