Print Email Facebook Twitter Testing and modelling of micro cement paste cube under indentation splitting Title Testing and modelling of micro cement paste cube under indentation splitting Author Zhang, H. (TU Delft Materials and Environment) Schlangen, E. (TU Delft Materials and Environment) Šavija, B. (TU Delft Materials and Environment) Contributor Meschke, Günther (editor) Pichler, Bernhard (editor) Rots, Jan G. (editor) Date 2018-02-28 Abstract Cement paste is the glue that holds concrete together and any improvements in material performance will come from its microstructure. For better understanding and predicting its elastic properties and fracture performance, more and more studies are carried out based on micromechanics simulations. However, the predicted results can be hardly verified experimentally due to the technical limitations. This paper presents a procedure for validating micromechanics simulation by making, testing and modelling deformation and fracture of micro cement paste cube (100 um x 100 um x 100 um). The micro scale specimens were produced by a micro dicing saw which is commonly employed in the semiconductor industry and fractured by a commercialcylindrical wedge tip mounted on a nano-indenter equipment. A combination of X-ray computed tomography technique and a discrete lattice fracture model was applied to simulate the deformation and fracture performance of the micro scale specimen under indentation. Mechanical properties of local phases are the input for this fracture simulation, which are taken from the previous study by the authors, wherein a micro scale experiment is developed to calibrate these values. Load-displacement curve and crack pattern from the simulation show a good agreement with those obtained experimentally. The proposed technique forms the basis for experimental validation of simulation tools that are used in a multi-scale framework at every scale. To reference this document use: http://resolver.tudelft.nl/uuid:d4da7c26-b59d-437b-9d5d-8483ebe9f2b4 Publisher CRC Press Embargo date 2018-09-01 ISBN 978-1-13-874117-1 Source Computational Modelling of Concrete Structures: Proceedings of the Conference on Computational Modelling of Concrete and Concrete Structures Event Conference on Computational Modelling of Concrete and Concrete Structures, 2018-02-26 → 2018-03-01, Bad Hofgastein, Austria, Bad Hofgastein, Austria 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, E. Schlangen, B. Šavija Files PDF EURO_C_2018_Manuscript_HZ_BS.pdf 643.73 KB Close viewer /islandora/object/uuid:d4da7c26-b59d-437b-9d5d-8483ebe9f2b4/datastream/OBJ/view