The Effect of Mesh Density in Lattice Models for Concrete with Incorporated Mesostructure

Jan Eliáš; Miroslav Vořechovský

doi:10.4028/www.scientific.net/KEM.488-489.29

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 488-489The Effect of Mesh Density in Lattice Models for...

The Effect of Mesh Density in Lattice Models for Concrete with Incorporated Mesostructure

Abstract:

This paper shows that mesh density dependency in brittle element lattice models cannot be completely removed by incorporating material mesostructure. This is concluded as a result of a series of simulations of fracturing in concrete using a 2D rigid-body-spring network. In the case of notched beams loaded in three-point-bending (TPB), adding finer grain structure led to a significant reduction in the dependency of the peak force on the mesh density. However, the energy dissipated during the fracture simulation was still affected significantly by the mesh density.

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Periodical:

Key Engineering Materials (Volumes 488-489)

Pages:

29-32

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.488-489.29

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Online since:

September 2011

Authors:

Jan Eliáš, Miroslav Vořechovský

Keywords:

Brittle Element, Concrete, Grain, Lattice, Mesh Density Dependency, Mesostructure

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