Micromechanical modelling of cement paste using X-ray computed tomography and statistical nanoindentation

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

16 Downloads (Pure)

Abstract

This work proposes a new method for micromechanical simulation of cement paste based on a combination of statistical nanoindentation and XCT technique without the need for explicit identification of distinct phases. A linear relationship between the greyscale level and local Young’s modulus was assumed and verified by the two-sample Kolmogorov-Smirnov statistic. Based on this assumption, the fracture behaviour of a digital cubic volume (100 μm) under uniaxial tension was simulated using a lattice fracture model. The proposed method was compared with the results obtained from a approach used previously by the authors in which discrete phases were considered. The two methods show similar crack patterns and stressstrain responses. The proposed method is regarded more promising as it captures also the gradient of material properties within the discrete phases.
Original languageEnglish
Title of host publicationProceedings of the Symposium on Concrete Modelling
Subtitle of host publicationCONMOD2018 27-30 August 2018 – Delft, Netherlands
EditorsErik Schlangen, Geert de Schutter, Branko Šavija, Hongzhi Zhang, Claudia Romero Rodriguez
PublisherRilem
Pages231-234
VolumePRO 127
ISBN (Electronic)978-2-35158-216-9
Publication statusPublished - 2018
EventSymposium on Concrete Modelling - Delft, Netherlands
Duration: 27 Aug 201830 Aug 2018

Publication series

NameRilem proceedings
PublisherRilem
NumberPRO 127

Conference

ConferenceSymposium on Concrete Modelling
Abbreviated titleCONMOD2018
CountryNetherlands
CityDelft
Period27/08/1830/08/18

Fingerprint Dive into the research topics of 'Micromechanical modelling of cement paste using X-ray computed tomography and statistical nanoindentation'. Together they form a unique fingerprint.

  • Cite this

    Zhang, H., Šavija, B., & Schlangen, E. (2018). Micromechanical modelling of cement paste using X-ray computed tomography and statistical nanoindentation. In E. Schlangen, G. de Schutter, B. Šavija, H. Zhang, & C. Romero Rodriguez (Eds.), Proceedings of the Symposium on Concrete Modelling: CONMOD2018 27-30 August 2018 – Delft, Netherlands (Vol. PRO 127, pp. 231-234). (Rilem proceedings; No. PRO 127). Rilem.