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

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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
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
NumberPRO 127


ConferenceSymposium on Concrete Modelling
Abbreviated titleCONMOD2018

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


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