3D Meso-scale Image-based Fracture Modelling of Concrete Using Cohesive elements

W Ren, James Yang, R Sharma

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

This paper extended the 2D meso-scale image-based models to 3D by using a small volume proportion of images obtained from an X-ray computed tomography test. The real microstructure of concrete specimen was characterized as three phases: aggregate, cement and voids (which is empty areas). Zero-thickness cohesive
interface elements were embedded in cement phase to represent the potential cracks (no cracks allowed to propagate through aggregate particles). The average stress-strain curve of the 3D mesh under uniaxial tension was compared with a 2D simulation result. The crack propagation process in 3D was illustrated together with the final crack surfaces.
Original languageEnglish
Title of host publicationProceedings of the 22nd UK Conference of the Association for Computational Mechanics in Engineering
EditorsAkbar Javadi, Mohammed S. Hussain
Publisher University of Exeter
Pages140-143
Number of pages4
ISBN (Electronic)978-0-902746-30-5
Publication statusPublished - 2014
Externally publishedYes
Event22nd UK National Conference of the Association for Computational Mechanics in Engineering - Exeter, United Kingdom
Duration: 2 Apr 20144 Apr 2014

Conference

Conference22nd UK National Conference of the Association for Computational Mechanics in Engineering
CountryUnited Kingdom
CityExeter
Period2/04/144/04/14

Keywords

  • Concrete
  • X-ray computed tomography
  • Image based modelling
  • Cohesive interface element
  • Mesoscale model

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  • Cite this

    Ren, W., Yang, J., & Sharma, R. (2014). 3D Meso-scale Image-based Fracture Modelling of Concrete Using Cohesive elements. In A. Javadi, & M. S. Hussain (Eds.), Proceedings of the 22nd UK Conference of the Association for Computational Mechanics in Engineering (pp. 140-143). University of Exeter.