Publication detail

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

KALA, Z.

Original Title

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

Type

journal article - other

Language

English

Original Abstract

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.

Keywords

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

Authors

KALA, Z.

RIV year

2008

Released

1. 2. 2008

Location

Lotyšsko

ISBN

1392-3730

Periodical

Journal of civil engineering and management

Year of study

14

Number

1

State

Republic of Lithuania

Pages from

67

Pages to

72

Pages count

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"
}