#DOES STEREOLOGY PREDICT FRACTURE OF MATERIALS PATCH#
(2006), "The patch microstructure in concrete: Evidence that it exists and is not a backscatter SEM artifact", Cement Concrete Comp. (2001), "The ITZ in concrete - a different view based on image analysis and SEM observations", Cement Concrete Res. (2001), "Towards a model of concrete mesostructure", Cement Concrete Comp. (1971), "A generalization of the concept of size", J.
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(2009), Numerical modeling on ITZ microstructure and its influence on the effective elastic properties and diffusivity of concrete, PhD Thesis, Delft University of Technology (to be published).ĭelfiner, P. (2006), "Influence of boundary conditions on pore percolation in model cement paste", Key Eng.
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van (2004), "Modeling of cement-based systems - the alchemy of cement chemistry", Cement Concrete Res. van (1991) Simulation of hydration and formation of structure in hardening cement-based materials, PhD thesis, Delft University Press, Delft.īreugel, K. (2004), A short history of nearly everything, Black Swan Book, Transworld Publ., London.īreugel, K. (1993), "Computer modeling of the interfacial transition zone in concrete", Interfaces in Cementitious Composites, E&FN Spon, London, 107-116.īryson, B. (2001), "Spatial statistics for simulated packings of spheres", Image Anal. Congress on Stereology and Image Analysis, Polish Society for Stereology, Krakow, 282-288.īezrukov, A., Stoyan, D. (2005), "A case study: modeling of self-flowing castables based on reconstructed 3D images", Proceedings 9th Eur.
![does stereology predict fracture of materials does stereology predict fracture of materials](https://ars.els-cdn.com/content/image/1-s2.0-S0022509619308464-gr2.jpg)
(1986), "Sediment formation by brownian dynamics simulation: effect of colloidal and hydrodynamic interaction on the sediment structure", J. Violation of the scientific knowledge of to day underlying these operational potentials will give rise to unreliable solutions.Īnsell, G.C. Mainstream fields of present day and expected application of DEM are sketched. Illustrative 2D examples of fresh cement particle packing and pore formation during maturation are elaborated to demonstrate this. The operational potentials of this family involve valid approaches to structure-sensitive mechanical or durability properties. This second family offers a far more realistic schematization of reality as to particle configuration. Static and dynamic solutions are realized to solve particle overlap.
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The second family of DEM systems employs concurrent algorithms, involving particle interaction mechanisms. Many common DEM systems are based on random sequential addition (RSA) procedures their operational potentials are limited to low configuration-sensitivity features of material structure, underlying material performance characteristics of low structure-sensitivity. It surveys the two families in physical discrete element modeling in concrete technology, only touching upon probabilistic DEM concepts as alternatives. This paper discusses the material science principles governing the design of DEM systems and evaluates the consequences for their operational potentials. Discrete element modeling (DEM) in concrete technology is concerned with design and use of models that constitute a schematization of reality with operational potentials.