Print Email Facebook Twitter Micromechanical modelling of cement paste using X-ray computed tomography and statistical nanoindentation Title Micromechanical modelling of cement paste using X-ray computed tomography and statistical nanoindentation Author Zhang, H. (TU Delft Materials and Environment) Šavija, B. (TU Delft Materials and Environment) Schlangen, E. (TU Delft Materials and Environment) Contributor Schlangen, Erik (editor) de Schutter, Geert (editor) Šavija, Branko (editor) Zhang, Hongzhi (editor) Romero Rodriguez, Claudia (editor) Date 2018 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. To reference this document use: http://resolver.tudelft.nl/uuid:2d298b63-ab34-4a54-ae05-bb2dd1d16696 Publisher Rilem Embargo date 2019-03-01 ISBN 978-2-35158-216-9 Source Proceedings of the Symposium on Concrete Modelling: CONMOD2018 27-30 August 2018 – Delft, Netherlands, PRO 127 Event Symposium on Concrete Modelling, 2018-08-27 → 2018-08-30, Delft, Netherlands Series Rilem proceedings (PRO 127) 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. Part of collection Institutional Repository Document type conference paper Rights © 2018 H. Zhang, B. Šavija, E. Schlangen Files PDF RILEM_PRO127_Micromechani ... tation.pdf 1.15 MB Close viewer /islandora/object/uuid:2d298b63-ab34-4a54-ae05-bb2dd1d16696/datastream/OBJ/view