Detail publikace

Material structure generation of concrete and its further usage in numerical simulations

HUŠEK, M. KALA, J.

Originální název

Material structure generation of concrete and its further usage in numerical simulations

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The execution of an experiment is a complex affair. It includes the preparation of test specimens, the measurement process itself and also the evaluation of the experiment as such. Financial requirements can differ significantly. In contrast, the cost of numerical simulations can be negligible, but what is the credibility of a simulated experiment? Discussions frequently arise concerning the methodology used in simulations, and particularly over the geometric model used. Simplification, rounding or the complete omission of details are frequent reasons for differences that occur between simulation results and the results of executed experiments. However, the creation of a very complex geometry, perhaps all the way down to the resolution of the very structure of the material, can be complicated. The subject of the article is therefore a means of creating the material structure of concrete contained in a test specimen. Because a complex approach is taken right from the very start of the numerical simulation, maximum agreement with experimental results can be achieved. With regard to the automation of the process described, countless material structures can be generated and randomly produced samples simulated in this way. Subsequently, a certain degree of randomness can be observed in the results obtained, e.g., the shape of the failure – just as is the case with experiments. The first part of the article presents a description of a complex approach to the creation of a geometry representing real concrete test specimens. The second part presents a practical application in which the numerical simulation of the compressive testing of concrete is executed using the generated geometry

Klíčová slova

heterogeneity; material structure; noise; pressure test; smoothed particle hydrodynamics

Autoři

HUŠEK, M.; KALA, J.

Vydáno

10. 11. 2018

ISSN

1598-6217

Periodikum

STRUCTURAL ENGINEERING AND MECHANICS

Ročník

68

Číslo

3

Stát

Korejská republika

Strany od

335

Strany do

344

Strany počet

10

BibTex

@article{BUT156398,
  author="Martin {Hušek} and Jiří {Kala}",
  title="Material structure generation of concrete and its further usage
in numerical simulations",
  journal="STRUCTURAL ENGINEERING AND MECHANICS",
  year="2018",
  volume="68",
  number="3",
  pages="335--344",
  doi="10.12989/sem.2018.68.3.335",
  issn="1598-6217"
}