Searched for: subject%3A%22model%22
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Wang, Xinyue (author), Dong, Sufen (author), Li, Z. (author), Han, Baoguo (author), Ou, Jinping (author)
This study investigates the effects of nanofillers on the interfacial transition zone (ITZ) between aggregate and cement paste by using nanoindentation and statistical nanoindentation techniques. Moreover, the underlying mechanisms are revealed through micromechanical modeling. The nanoindentation results indicate that incorporating...
journal article 2022
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Chang, Z. (author), Zhang, Hongzhi (author), Schlangen, E. (author), Šavija, B. (author)
The lattice fracture model is a discrete model that can simulate the fracture process of cementitious materials. In this work, the Delft lattice fracture model is reviewed and utilized for fracture analysis. First, a systematic calibration procedure that relies on the combination of two uniaxial tensile tests is proposed to determine the input...
journal article 2020
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Li, Z. (author), Zhang, Shizhe (author), Liang, X. (author), Ye, G. (author)
This study aims to investigate the cracking potential of alkali-activated slag (AAS) and alkali-activated slag-fly ash (AASF) concrete subjected to restrained autogenous shrinkage. Temperature Stress Testing Machine (TSTM) is utilized, for the first time, to monitor the stress evolution and to measure the cracking time of alkali-activated...
journal article 2020
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Yu, C. (author)
It is difficult to accurately predict the strength of masonry and concrete structures. The most widely used method for simulating their behaviour is finite element analysis with the Newton-Raphson method and arch length control. However, the Newton-Raphson method can diverge and not produce a result, for example in bifurcations or during snap...
doctoral thesis 2019
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Esposito, R. (author), Hendriks, M.A.N. (author)
The assessment of concrete structures affected by alkali–silica reaction (ASR) is a complex problem due to the multiscale nature of this long-term phenomenon. The reaction starts within the concrete constituents and developed at aggregate level by inducing swelling and deterioration of concrete material, which eventually affect the capacity of...
journal article 2017
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Qian, Zhiwei (author), Schlangen, E. (author), Ye, G. (author), van Breugel, K. (author)
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...
journal article 2017
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Silva de Souza, L.M. (author)
Alkali-silica reaction (ASR) is a deterioration process that affects the durability of concrete structures worldwide. During the reaction, hydroxyl and alkali ions present in the pore solution react with reactive silica from the aggregate, forming a hygroscopic ASR gel. Alternatively, the silica structure is attacked by hydroxyl ions and the...
doctoral thesis 2016
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Esposito, R. (author), Hendriks, M.A.N. (author)
The alkali-silica reaction (ASR) in concrete is one of the most harmful deterioration processes, which leads to expansion and cracking of the material. To understand the evolution of ASR in concrete and its deteriorating impact on the material, a multiscale material model, from aggregate to concrete level, is proposed. The concrete, which at...
journal article 2016
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Esposito, R. (author)
The assessment of concrete structures affected by alkali-silica reaction (ASR) is a complex problem due to the multiscale nature of this long-term phenomenon. The reaction starts within the concrete constituents with the formation of an expansive alkali-silica gel at reaction products level. Being the expansive gel confined within the concrete...
doctoral thesis 2016
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Qian, Z. (author)
Concrete is a composite construction material, which is composed primarily of coarse aggregates, sands and cement paste. The fracture processes in concrete are complicated, because of the multiscale and multiphase nature of the material. In the past decades, comprehensive effort has been put to study the cracks evolution in concrete, both...
doctoral thesis 2012
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Jankovic, D. (author), Van Mier, J.G.M. (author)
The goal of this study is to develop a numerical model for the simulation of crack growth due to moisture flow in the porous zone between aggregate and matrix (interfacial transition zone, ITZ), where cracking in concrete originates. Two models are coupled based on similarities in their mesh shape: a Lattice Gas Automaton for moisture flow and a...
journal article 2001
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De Borst, R. (author)
journal article 1997
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Sluys, L.J. (author), De Borst, R. (author)
journal article 1996
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Feenstra, P.H. (author), De Borst, R. (author)
journal article 1996
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De Borst, R. (author), Pamin, J. (author)
journal article 1996
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Feenstra, P.H. (author), De Borst, R. (author)
journal article 1995
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Feenstra, P.H. (author), De Borst, R. (author)
conference paper 1995
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Feenstra, P.H. (author), De Borst, R. (author)
conference paper 1995
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Feenstra, P.H. (author), De Borst, R. (author)
journal article 1995
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Sharooz, B.M. (author), Ho, I.K. (author), Aktan, A.E. (author), De Borst, R. (author), Blaauwendraad, J. (author), Van der Veen, C. (author), Iding, R.H. (author), Miller, R.A. (author)
journal article 1994
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