Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Numerical analysis of lateral inertial confinement effects on impact test of concrete compressive material properties

    Access Status
    Fulltext not available
    Authors
    Hao, Y.
    Hao, Hong
    Li, Z.
    Date
    2010
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Hao, Y. and Hao, H. and Li, Z. 2010. Numerical analysis of lateral inertial confinement effects on impact test of concrete compressive material properties. International Journal of Protective Structures. 1 (1): pp. 145-168.
    Source Title
    International Journal of Protective Structures
    DOI
    10.1260/2041-4196.1.1.145
    ISSN
    2041-4196
    URI
    http://hdl.handle.net/20.500.11937/10750
    Collection
    • Curtin Research Publications
    Abstract

    Dynamic material properties, in particular the dynamic strength, of concrete material are usually obtained by conducting laboratory tests such as drop-weight test and Split Hopkinson Pressure Bar (SHPB) test. It is commonly agreed that a few parameters associated with stress wave propagation will affect the test results, including the lateral and axial inertial effect, end friction confinement and stress wave reflection and refraction. Many different measures have been proposed to eliminate or limit the influences of these effects in dynamic tests of material properties. However, owing to the nature of dynamic loadings, especially those with high loading rates, it is very unlikely to completely eliminate these influences in physical testing. Moreover, it is also very difficult to quantify these influences from the laboratory testing data. In the present study, a refined mesoscale concrete material model is developed to simulate impact tests and to study the influences of lateral inertial confinement on concrete compressive strength increment at high strain rate. The commercial software AUTODYN is used to perform the numerical simulations. Numerical simulations of concrete specimens of different dimensions and under impact loads of different loading rates are carried out. The results are compared with those obtained from laboratory tests, with those specified in the code and simulated with homogeneous concrete material model. The reliability of the numerical simulation of impact tests is verified. It is found that the influences of lateral inertial confinement effect on Dynamic Increase Factor (DIF) is strain rate and specimen size dependent. Neglecting aggregates in concrete specimen in laboratory tests and numerical simulations lead to underestimation of DIF of concrete material.

    Related items

    Showing items related by title, author, creator and subject.

    • Numerical Evaluation of the Influence of Aggregates on Concrete Compressive Strength at High Strain Rate
      Hao, Y.; Hao, Hong (2011)
      The dynamic strength of concrete materials is usually obtained by conducting laboratory tests such as drop-weight test or split Hopkinson pressure bar (SHPB) test. It is widely accepted that the uniaxial compressive ...
    • Influence of the concrete DIF model on the numerical predictions of RC wall responses to blast loadings
      Hao, Yifei; Hao, Hong (2014)
      Reliable prediction of structural responses to blast loadings requires an accurate dynamic material model. The dynamic strength of concrete material is normally higher than the static strength. Based on extensive experimental ...
    • Numerical investigation of the dynamic compressive behaviour of rock materials at high strain rate
      Hao, Yifei; Hao, Hong (2013)
      The dynamic compressive strength of rock materials increases with the strain rate. They are usually obtained by conducting laboratory tests such as split Hopkinson pressure bar (SHPB) test or drop-weight test. It is ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.