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 study of the influences of pressure confinement on high-speed impact tests of dynamic material properties of concrete

    68420.pdf (877.9Kb)
    Access Status
    Open access
    Authors
    Cui, J.
    Hao, Hong
    Shi, Y.
    Date
    2018
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Cui, J. and Hao, H. and Shi, Y. 2018. Numerical study of the influences of pressure confinement on high-speed impact tests of dynamic material properties of concrete. Construction and Building Materials. 171: pp. 839-849.
    Source Title
    Construction and Building Materials
    DOI
    10.1016/j.conbuildmat.2018.03.170
    ISSN
    0950-0618
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP160104557
    URI
    http://hdl.handle.net/20.500.11937/68238
    Collection
    • Curtin Research Publications
    Abstract

    Although tests of Modified Split-Hopkinson Pressure Bar (MSHPB) system with a pressure vessel filled with pressurized fluid or air give concrete material properties under multi-axial stress states, as will be demonstrated in this study, they do not lead to accurate results because the confining pressure under impact tests changes when specimen deforms. Unfortunately there is no reliable apparatus yet to perform impact tests on specimens with a controllable confining pressure. In this study, a mesoscale concrete model with consideration of randomly distributed aggregates is developed to study the strain rate effect on concrete under confining pressures. The results show that the strain rate sensitivity of concrete decreases with the increment of the confining pressure, indicating the strain rate effect of concrete under multi-axial stress states is less prominent as compared to that under uniaxial stress state. Using the uniaxial impact testing data overestimates the strain rate effect of concrete material under multi-axial stress states. An empirical relation is proposed in this study to model the concrete Dynamic Increase Factor (DIF) for the case with pressure confinement, which can be used to more accurately represent the DIF of concrete material under multi-axial stress states.

    Related items

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

    • Mechanical properties of ambient cured high-strength plain and hybrid fiber reinforced geopolymer composites from triaxial compressive tests
      Khan, Musaad Zaheer Nazir; Hao, Y.; Hao, Hong; Shaikh, Faiz Uddin Ahmed; Liu, K. (2018)
      Geopolymer binders have evolved as a promising alternative to ordinary Portland cement (OPC) in concrete over the last few decades. However, many aspects of their mechanical behaviour such as their performance under ...
    • Numerical analysis of lateral inertial confinement effects on impact test of concrete compressive material properties
      Hao, Y.; Hao, Hong; Li, Z. (2010)
      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 ...
    • Influence of end friction confinement on impact tests of concrete material at high strain rate
      Hao, Yifei; Hao, Hong; Li, Z. (2013)
      The compressive strength of concrete material increases with the strain rate. The dynamic compressive strength of concrete material is usually obtained by conducting laboratory tests such as split Hopkinson pressure bar ...
    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.