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VOŘECHOVSKÝ, M. ELIÁŠ, J.
Originální název
Mesh dependency and related aspects of lattice models
Typ
článek ve sborníku mimo WoS a Scopus
Jazyk
angličtina
Originální abstrakt
We study the effect of discretization of lattice models. Two basic cases are examined: (i) homogeneous lattices, where all elements share the same strength and (ii) lattices in which the properties are assigned to the elements according to their correspondence to three phases of concrete, namely matrix, aggregates, and the interfacial transitional zone. These dependencies are studied with both, notched and unnotched beams loaded in three point bending. We report the results for regular discretization and irregular networks obtained via Voronoi tessellation. The dependence of strength is compared to various size effect formulas, and we show that in the case of homogeneous lattices, the fineness of discretization of the specimens of the same size can mimic variations in the size of lattice models with the same discretization density. In the case of heterogeneity (ii), we report how both the peak force and fracture energy depend on the mesh resolution.
Klíčová slova
Lattice models
Autoři
VOŘECHOVSKÝ, M.; ELIÁŠ, J.
Rok RIV
2010
Vydáno
7. 6. 2010
Místo
Jeju, Korea
ISBN
978-89-5708-180-8
Kniha
Conference on Fracture Mechanics of Concrete and Concrete Structures (FRAMCOS 7)
Strany od
600
Strany do
607
Strany počet
8
BibTex
@inproceedings{BUT37000, author="Miroslav {Vořechovský} and Jan {Eliáš}", title="Mesh dependency and related aspects of lattice models", booktitle="Conference on Fracture Mechanics of Concrete and Concrete Structures (FRAMCOS 7)", year="2010", pages="600--607", address="Jeju, Korea", isbn="978-89-5708-180-8" }