Publication detail

Inspection Based Probabilistic Modeling of Fatigue Crack Progression

KREJSA, M. KALA, Z. SEITL, S.

Original Title

Inspection Based Probabilistic Modeling of Fatigue Crack Progression

Type

conference paper

Language

English

Original Abstract

Attention to the fatigue cracks in steel structures and bridges has been paid for a long time. Fatigue crack damage depends on a number of stress range cycles. Three sizes are important for the characteristics of the propagation of fatigue cracks - the initial size, detectable size and acceptable size. The theoretical model of fatigue crack progression in paper is based on a linear fracture mechanics. When determining the required degree of reliability, it is possible to specify the time of the first inspection of the construction which will focus on the fatigue damage. Using a conditional probability, times for subsequent inspections can be determined. For probabilistic calculation of fatigue crack progression was used the original and new probabilistic methods - the Direct Optimized Probabilistic Calculation ("DOProC"), which uses a purely numerical approach without any simulation or approximation techniques. The algorithm of the probabilistic calculation was applied in the FCProbCalc code ("Fatigue Crack Probabilistic Calculation"), using which is possible to carry out the probabilistic modelling of propagation of fatigue cracks in a user friendly environment very effectively.

Keywords

Direct Optimized Probabilistic Calculation; DOProC; fatigue crack; FCProbCalc; inspection of structure; probabilistic methods; probability of failure; random variable; reliability assessment

Authors

KREJSA, M.; KALA, Z.; SEITL, S.

Released

11. 4. 2016

Publisher

Elsevier

ISBN

1877-7058

Periodical

Procedia Engineering

Year of study

142

Number

1

State

Kingdom of the Netherlands

Pages from

146

Pages to

153

Pages count

8

URL

https://www.sciencedirect.com/science/article/pii/S1877705816003891

Full text in the Digital Library

http://hdl.handle.net/11012/204207

BibTex

@inproceedings{BUT133166,
  author="Martin {Krejsa} and Zdeněk {Kala} and Stanislav {Seitl}",
  title="Inspection Based Probabilistic Modeling of Fatigue Crack Progression",
  booktitle="Sustainable Development of Civil, Urban and Transportation Engineering Conference",
  year="2016",
  journal="Procedia Engineering",
  volume="142",
  number="1",
  pages="146--153",
  publisher="Elsevier",
  doi="10.1016/j.proeng.2016.02.025",
  issn="1877-7058",
  url="https://www.sciencedirect.com/science/article/pii/S1877705816003891"
}