Mesoscale modelling of concrete damage under dynamic loading

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Abstract

Previous investigations show that concrete is a rate-dependent material, whose resistance, failure mode, crack pattern and crack velocity are significantly influenced by the loading rates. In order to better understand the damage process in concrete under dynamic loadings, a basic concrete specimen under dynamic compression and tension respectively is simulated in this research. The rate dependency and the damage propagating processes in concrete under various strain rates, and the influence of aggregate size on strength are explored. The simulation results demonstrate that more cracks tend to appear in the concrete specimen with the increasing loading rates, and enhanced compressive/tensile resistances of the material are also observed under higher loading rates. The mesoscale findings in this research can be helpful for revealing the mechanisms behind the rate dependency of concrete, and benefit structural safety analyses of concrete structures.
Original languageEnglish
Title of host publicationNon-Traditional Cement and Concrete VI
EditorsV. Bílek, Z. Keršner, H. Šimonová
PublisherBrno University of Technology
Pages80-88
ISBN (Print)978-80-214-5507-8
Publication statusPublished - Jul 2017
Event6th International Conference on Non-traditional Cement & Concrete(NTCC2017) - Hotel Continental, Brno, Czech Republic
Duration: 19 Jun 201722 Jun 2017
Conference number: 6
http://www.fce.vutbr.cz/stm/fracture/symposium2017/
http://www.fce.vutbr.cz/stm/fracture/symposium2017/

Conference

Conference6th International Conference on Non-traditional Cement & Concrete(NTCC2017)
Abbreviated titleNTCC 2017
CountryCzech Republic
CityBrno
Period19/06/1722/06/17
Internet address

Keywords

  • simulation
  • mesoscale
  • dynamic
  • damage

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