Detail publikace

Mesh dependency and related aspects of lattice models

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"
}