Random aggregate generation and mesoscale modeling of concrete under high strain rate compression

Xiao Qing Zhou, Yong Xia

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)

Abstract

In the mesoscale modeling, concrete is assumed consisting of three components, i.e., coarse aggregates, mortar matrix, and the interfacial transition zone (ITZ), each with different material behavior. The shape and the percentage of the coarse aggregate are the key factors in the mesoscale numerical simulation. The present paper investigates the effect of the coarse aggregate shape on the concrete behavior under high strain rate compression. Simplified methods are adopted to construct the aggregate distribution. Three different aggregate shapes, i.e., circular, oval and polygons, are generated to model the gravel and crushed stone aggregates, respectively. Using these different aggregate shapes, concrete specimens under high strain rate compression are modeled. Numerical results show that the aggregate shapes have a significant effect on the crack path, whereas little effect on the overall responses of the concrete specimen.
Original languageEnglish
Title of host publicationFrontiers of Green Building, Materials and Civil Engineering
Pages733-736
Number of pages4
DOIs
Publication statusPublished - 1 Nov 2011
Event2011 International Conference on Green Building, Materials and Civil Engineering, GBMCE 2011 - Shangri-La, China
Duration: 22 Aug 201123 Aug 2011

Publication series

NameApplied Mechanics and Materials
Volume71-78
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Green Building, Materials and Civil Engineering, GBMCE 2011
CountryChina
CityShangri-La
Period22/08/1123/08/11

Keywords

  • Aggregate
  • Concrete
  • Interfacial transition zone
  • Mesoscale
  • Numerical simulation

ASJC Scopus subject areas

  • Engineering(all)

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