K&C局部损伤混凝土材料模型在精细有限元模拟中的应用

Translated title of the contribution: Numerical applications of K&C concrete damage model in meso-scale finite element modelling

Xiao Qing Li, Jian Fei Chen, Yong Lu

    Research output: Contribution to journalArticle

    Abstract

    This paper presents a study on concrete fracture and the associated mesh sensitivity using the finite element (FE) method with a local concrete model in both tension (Mode I) and compression.To enable the incorporation of dynamic loading, the FE model is developed using a transient dynamic analysis code LS-DYNA Explicit.A series of investigations have been conducted on typical fracture scenarios to evaluate the model performances and calibration of relevant parameters.The K&C damage model was adopted because it is a comprehensive local concrete model which allows the user to change the crack band width, fracture energy and rate dependency of the material.Compressive localisation modelling in numerical modelling is also discussed in detail in relation to localisation.An impact test specimen is modelled.
    Original languageChinese
    Pages (from-to)541-547
    Number of pages7
    JournalJournal of Yunan University
    Volume37
    Issue number4
    DOIs
    Publication statusPublished - 2015

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