Detail publikačního výsledku

Fuzzy probability analysis of the fatigue resistance of steel structural members under bending

KALA, Z.

Originální název

Fuzzy probability analysis of the fatigue resistance of steel structural members under bending

Anglický název

Fuzzy probability analysis of the fatigue resistance of steel structural members under bending

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The paper is aimed at the fuzzy probabilistic analysis of fatigue resistance due to uncertainty of input parameters. The fatigue resistance of the steel member is evaluated by linear fracture mechanics as the number of cycles leading to the propagation of initial cracks into a critical crack resulting in brittle fracture. When the histogram of stress range is known, the fatigue resistance is a random variable. In the event that the histogram is unknown or was acquired from a small number of experiments, another source of uncertainty is of an epistemic origin. Two basic approaches, which make provision for uncertainty of input histograms of stress range, are illustrated in the paper. Uncertainty of histograms of stress range is taken into account by the variability of equivalent stress range in the first stochastic approach. Input histograms as considered as members of a fuzzy set in the second approach.

Anglický abstrakt

The paper is aimed at the fuzzy probabilistic analysis of fatigue resistance due to uncertainty of input parameters. The fatigue resistance of the steel member is evaluated by linear fracture mechanics as the number of cycles leading to the propagation of initial cracks into a critical crack resulting in brittle fracture. When the histogram of stress range is known, the fatigue resistance is a random variable. In the event that the histogram is unknown or was acquired from a small number of experiments, another source of uncertainty is of an epistemic origin. Two basic approaches, which make provision for uncertainty of input histograms of stress range, are illustrated in the paper. Uncertainty of histograms of stress range is taken into account by the variability of equivalent stress range in the first stochastic approach. Input histograms as considered as members of a fuzzy set in the second approach.

Klíčová slova

Fatigue, steel, crack, probability, fuzzy, simulation, sensitivity

Klíčová slova v angličtině

Fatigue, steel, crack, probability, fuzzy, simulation, sensitivity

Autoři

KALA, Z.

Rok RIV

2010

Vydáno

01.02.2008

Místo

Lotyšsko

ISSN

1392-3730

Periodikum

Journal of Civil Engineering and Management

Svazek

14

Číslo

1

Stát

Litevská republika

Strany od

67

Strany do

72

Strany počet

6

BibTex

@article{BUT48728,
  author="Zdeněk {Kala}",
  title="Fuzzy probability analysis of the fatigue resistance of steel structural members under bending",
  journal="Journal of Civil Engineering and Management",
  year="2008",
  volume="14",
  number="1",
  pages="67--72",
  issn="1392-3730"
}