Detail publikace

Global sensitivity analysis of failure probability caused by fatigue crack propagation

KALA, Z.

Originální název

Global sensitivity analysis of failure probability caused by fatigue crack propagation

Typ

článek ve sborníku mimo WoS a Scopus

Jazyk

angličtina

Originální abstrakt

The probability of failure of a load bearing steel member is investigated using a new type of global sensitivity analysis subordinated to contrasts. The main objective of the probability-oriented sensitivity analysis is structural reliability. The structural reliability methodology uses random variables as inputs. The subject of interest is the identification of those random variables that are most important when the limit state of a steel bridge member is reached. The limit state is defined by the occurrence of brittle fracture, which results from stress changes caused by multiple repeated loads. The propagation of a single-edge crack from initial to critical size is analysed using linear fracture mechanics. The failure probability and sensitivity indices are calculated using sampling-based methods. The sensitivity indices are estimated using double-nested-loop simulation of the Latin Hypercube Sampling method. New findings indicate that interaction effects among input variables strongly influence the probability of failure especially at the beginning of the operating period.

Klíčová slova

sensitivity analysis; failure probability; steel; bridge; fracture;

Autoři

KALA, Z.

Vydáno

17. 5. 2019

Místo

Vilnius

ISBN

978-609-476-197-3

Kniha

13th International Conference MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES

ISSN

2029-9915

Periodikum

Modern Building Materials, Structures and Techniques

Stát

Litevská republika

Strany od

359

Strany do

365

Strany počet

7

URL

http://webu3.vgtu.lt/uni/stf/mbmst/359-365_MBMST_054.pdf

BibTex

@inproceedings{BUT170448,
  author="Zdeněk {Kala}",
  title="Global sensitivity analysis of failure probability caused by fatigue crack propagation",
  booktitle="13th International Conference
MODERN BUILDING MATERIALS, STRUCTURES AND TECHNIQUES",
  year="2019",
  journal="Modern Building Materials, Structures and Techniques",
  pages="359--365",
  address="Vilnius",
  doi="10.3846/mbmst.2019.054",
  isbn="978-609-476-197-3",
  issn="2029-9915",
  url="http://webu3.vgtu.lt/uni/stf/mbmst/359-365_MBMST_054.pdf"
}