Publication result detail

Validation of Stainless-Steel CHS Columns Finite Element Models

JINDRA, D.; KALA, Z.; KALA, J.

Original Title

Validation of Stainless-Steel CHS Columns Finite Element Models

English Title

Validation of Stainless-Steel CHS Columns Finite Element Models

Type

WoS Article

Original Abstract

Stainless-steel elements are increasingly used in a wide range of load-bearing structures due to their strength, minimal maintenance requirements, and aesthetic appearance. Their response differs from standard steels; therefore, it is necessary to choose a different procedure when creating a correct computational model. Seven groups of numerical models differing in the used formulation of elements integration, mesh density localization, nonlinear material model, and initial geometric imperfection were calibrated. The results of these advanced simulations were validated with published results obtained by an extensive experimental approach on circular hollow sections columns. With regard to the different slenderness of the cross-sections, the influence of the initial imperfection in the form of global and local loss of stability on the response was studied. Responses of all models were validated by comparing the averaged normalized ultimate loads and the averaged normalized deflections with experimentally obtained results.

English abstract

Stainless-steel elements are increasingly used in a wide range of load-bearing structures due to their strength, minimal maintenance requirements, and aesthetic appearance. Their response differs from standard steels; therefore, it is necessary to choose a different procedure when creating a correct computational model. Seven groups of numerical models differing in the used formulation of elements integration, mesh density localization, nonlinear material model, and initial geometric imperfection were calibrated. The results of these advanced simulations were validated with published results obtained by an extensive experimental approach on circular hollow sections columns. With regard to the different slenderness of the cross-sections, the influence of the initial imperfection in the form of global and local loss of stability on the response was studied. Responses of all models were validated by comparing the averaged normalized ultimate loads and the averaged normalized deflections with experimentally obtained results.

Keywords

stainless steel; finite element numerical model; numerical model validation; Ramberg and Osgood model; CHS column buckling

Key words in English

stainless steel; finite element numerical model; numerical model validation; Ramberg and Osgood model; CHS column buckling

Authors

JINDRA, D.; KALA, Z.; KALA, J.

RIV year

2022

Released

04.04.2021

Publisher

MDPI

Location

SWITZERLAND

ISBN

1996-1944

Periodical

Materials

Volume

14

Number

7

State

Swiss Confederation

Pages from

1

Pages to

25

Pages count

25

URL

https://www.mdpi.com/1996-1944/14/7/1785

Full text in the Digital Library

http://hdl.handle.net/11012/204086

BibTex

@article{BUT176051,
  author="Daniel {Jindra} and Zdeněk {Kala} and Jiří {Kala}",
  title="Validation of Stainless-Steel CHS Columns Finite Element Models",
  journal="Materials",
  year="2021",
  volume="14",
  number="7",
  pages="1--25",
  doi="10.3390/ma14071785",
  url="https://www.mdpi.com/1996-1944/14/7/1785"
}

Documents

materials-14-01785