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Publication detail
KALA, Z.
Original Title
Probabilistic modelling of fatigue crack - Some observations about conditional probability
Type
journal article in Scopus
Language
English
Original Abstract
The article deals with time-dependent analysis of the failure probability of a load bearing element of a steel bridge. The theoretical model of fatigue crack propagation is based on linear fracture mechanics. The Latin Hypercube Sampling statistical method is used to calculate the unconditional and conditional probabilities. The conditional probability is calculated by excluding those random observations that have a detectable crack length observed during the inspection. The effect of included and excluded observations of input random quantities on the conditional failure probability is mapped and shown graphically. It is proven that the number of stress peaks per year can be considered as one random variable for any time interval of the life span of the bridge.
Keywords
Fatigue, steel, bridge, probability, stochastic, fracture mechanics, random sampling
Authors
Released
15. 11. 2018
ISBN
1998-4448
Periodical
International Journal of Mechanics
Year of study
2018
Number
12
State
United States of America
Pages from
121
Pages to
130
Pages count
10
BibTex
@article{BUT151663, author="Zdeněk {Kala}", title="Probabilistic modelling of fatigue crack - Some observations about conditional probability", journal="International Journal of Mechanics", year="2018", volume="2018", number="12", pages="121--130", issn="1998-4448" }