Detail publikace

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

KALA, J. KALA, Z.

Originální název

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

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

steel, random fields

Autoři

KALA, J.; KALA, Z.

Rok RIV

2005

Vydáno

22. 2. 2005

Místo

Vilnius

ISSN

1392-5113

Periodikum

Nonlinear Analysis - Modelling and Control

Ročník

10

Číslo

2

Stát

Litevská republika

Strany od

151

Strany do

160

Strany počet

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"
}