Meso-scale fracture modelling of concrete based on X-ray computed tomography images

W Ren, James Yang, P Withers

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

Abstract

Meso-scale two-dimensional finite element models are developed for fracture modelling in concrete based on images from an in-situ microscale X-ray Computed Tomography test. In the models, the material heterogeneity is characterised by “real” multi-phases, namely, aggregates, cement and voids. Zero-thickness cohesive interface elements (CIEs) with normal/shear traction-separation
constitutive laws are embedded within cement and on aggregate-cement interfaces to simulate potential cracks. Simulations of uniaxial tension tests were carried out. The results show good
qualitative and quantitative agreement with experimental observations and simulations from literatures.
Original languageEnglish
Title of host publicationProceedings of the 5th Asia Pacific Congress on Computational Mechanics and 4th International Symposium on Computational Mechanics, (11th - 14th Dec. 2013, Singapore)
Editors G.R. Liu, Z.S. Liu
Number of pages5
Publication statusPublished - 2013
Externally publishedYes
Event5th Asia Pacific Congress on Computational Mechanics - , Singapore
Duration: 11 Dec 201314 Dec 2013
Conference number: 5th

Conference

Conference5th Asia Pacific Congress on Computational Mechanics
Abbreviated titleAPCOM2013
CountrySingapore
Period11/12/1314/12/13

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Keywords

  • Concrete
  • X-ray computed tomography
  • Image based modelling
  • Cohesive zone model
  • Meso-scale finite element model

Cite this

Ren, W., Yang, J., & Withers, P. (2013). Meso-scale fracture modelling of concrete based on X-ray computed tomography images. In G. R. Liu, & Z. S. Liu (Eds.), Proceedings of the 5th Asia Pacific Congress on Computational Mechanics and 4th International Symposium on Computational Mechanics, (11th - 14th Dec. 2013, Singapore)