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Materials 2017, 10(6), 587; doi:10.3390/ma10060587

Modeling Framework for Fracture in Multiscale Cement-Based Material Structures

Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft 2628 CN, The Netherlands
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Academic Editor: Jorge de Brito
Received: 16 March 2017 / Revised: 15 May 2017 / Accepted: 23 May 2017 / Published: 26 May 2017
(This article belongs to the Special Issue Numerical Analysis of Concrete using Discrete Elements)
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Abstract

Multiscale modeling for cement-based materials, such as concrete, is a relatively young subject, but there are already a number of different approaches to study different aspects of these classical materials. In this paper, the parameter-passing multiscale modeling scheme is established and applied to address the multiscale modeling problem for the integrated system of cement paste, mortar, and concrete. The block-by-block technique is employed to solve the length scale overlap challenge between the mortar level (0.1–10 mm) and the concrete level (1–40 mm). The microstructures of cement paste are simulated by the HYMOSTRUC3D model, and the material structures of mortar and concrete are simulated by the Anm material model. Afterwards the 3D lattice fracture model is used to evaluate their mechanical performance by simulating a uniaxial tensile test. The simulated output properties at a lower scale are passed to the next higher scale to serve as input local properties. A three-level multiscale lattice fracture analysis is demonstrated, including cement paste at the micrometer scale, mortar at the millimeter scale, and concrete at centimeter scale. View Full-Text
Keywords: parameter-passing upscaling; lattice fracture analysis; Anm material model; cement paste; mortar; concrete; irregular real-shape aggregates parameter-passing upscaling; lattice fracture analysis; Anm material model; cement paste; mortar; concrete; irregular real-shape aggregates
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Qian, Z.; Schlangen, E.; Ye, G.; van Breugel, K. Modeling Framework for Fracture in Multiscale Cement-Based Material Structures. Materials 2017, 10, 587.

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