Publication detail

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

HUŠEK, M. KALA, J.

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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

Keywords

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

Authors

HUŠEK, M.; KALA, J.

Released

10. 11. 2018

ISBN

1598-6217

Periodical

STRUCTURAL ENGINEERING AND MECHANICS

Year of study

68

Number

3

State

Republic of Korea

Pages from

335

Pages to

344

Pages count

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"
}