Publication detail

Influence of yield strength variability over cross-section to steel beam load-carrying capacity

KALA, J. KALA, Z.

Original Title

Influence of yield strength variability over cross-section to steel beam load-carrying capacity

Type

journal article - other

Language

English

Original Abstract

Authors of article analysed influence of variability of yield strength over cross-section of hot rolled steel member to its load-carrying capacity. In calculation models, the yield strength is usually taken as constant. But yield strength of a steel hot-rolled beam is generally a random quantity. Not only the whole beam but also its parts have slightly different material characteristics. According to the results of more accurate measurements, the statistical characteristics of the material taken from various cross-section points (e.g. from a web and a flange) are, however, more or less different. This variation is described by one dimensional random field. The load-carrying capacity of the beam IPE300 under bending moment at its ends with the lateral buckling influence included is analysed, non dimensional slenderness according to EC3 is =0.6. For this relatively low slender beam the influence of the yield strength on the load-carrying capacity is large. Also the influence of all the other imperfections as accurately as possible, the load-carrying capacity was determined by geometrically and materially nonlinear solution of very accurate FEM model by the ANSYS programme.

Keywords

steel, random fields

Authors

KALA, J.; KALA, Z.

RIV year

2005

Released

22. 2. 2005

Location

Vilnius

ISBN

1392-5113

Periodical

Nonlinear Analysis - Modelling and Control

Year of study

10

Number

2

State

Republic of Lithuania

Pages from

151

Pages to

160

Pages count

10

BibTex

@article{BUT46450,
  author="Jiří {Kala} and Zdeněk {Kala}",
  title="Influence of yield strength variability over cross-section to steel beam load-carrying capacity",
  journal="Nonlinear Analysis - Modelling and Control",
  year="2005",
  volume="10",
  number="2",
  pages="151--160",
  issn="1392-5113"
}