Publication detail

Identification of the Parameters of a Concrete Damage Material Model

KRÁL, P. HRADIL, P. KALA, J. HOKEŠ, F. HUŠEK, M.

Original Title

Identification of the Parameters of a Concrete Damage Material Model

Type

conference paper

Language

English

Original Abstract

Today, the advanced numerical analysis of concrete structures requires the use of nonlinear material models of concrete in order to take into account the nonlinear behavior of concrete within finite element simulations. However, the effective application of nonlinear concrete material models within numerical simulations often becomes problematic because material models often contain parameters whose values are difficult to obtain. Modern computers are advanced enough to solve this problem through the inverse identification of the used material model’s parameters. This inverse identification is based on the combination of optimization methods or procedures with the experimental approach. The aim of this paper is to perform the identification of some parameters of the Karagozian & Case Concrete model - Release III, which is implemented in LS-Dyna software, on the basis of an experimentally-measured loading curve. For this purpose, numerical and experimental approaches were combined with optimization procedures. The loading curve was obtained from a triaxial compression test performed on a concrete cylinder.

Keywords

Triaxial compression test; concrete cylinder; nonlinear material model of concrete; numerical analysis; inverse identification; loaddisplacement, curve.

Authors

KRÁL, P.; HRADIL, P.; KALA, J.; HOKEŠ, F.; HUŠEK, M.

Released

22. 2. 2017

ISBN

1877-7058

Periodical

Procedia Engineering

Year of study

2017

Number

172

State

Kingdom of the Netherlands

Pages from

578

Pages to

585

Pages count

9

BibTex

@inproceedings{BUT133423,
  author="Petr {Král} and Petr {Hradil} and Jiří {Kala} and Filip {Hokeš} and Martin {Hušek}",
  title="Identification of the Parameters of a Concrete Damage Material Model",
  booktitle="Modern Building Materials, Structures and Techniques, MBMST 2016",
  year="2017",
  journal="Procedia Engineering",
  volume="2017",
  number="172",
  pages="578--585",
  doi="10.1016/j.proeng.2017.02.068",
  issn="1877-7058"
}