Inspection Based Probabilistic Modeling of Fatigue Crack Progression

Krejsa, Martin; Kala, Zdeněk; Seitl, Stanislav

doi:10.1016/j.proeng.2016.02.025

Cited by 27 publications

(14 citation statements)

References 20 publications

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“…These changes of material constants due to microstructure can lead to the significant reduction of fatigue life time of the structure made from steel with fine microstructure. These fatigue properties of S355 J0 will be used in further probabilistic evaluation e.g., [8][9][10] and fatigue modelling for calculation as presented in e.g., [11][12][13][14][15][16].…”

Section: Discussionmentioning

confidence: 99%

Influence of Micro-Structure on the Fatigue Crack Propagation in Bridge Steel

Pokorný

Miarka

Klusák

et al. 2018

The 18th International Conference on Experimental Mechanics

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Abstract:The use of high strength steels (HSS) allows designing lighter, slenderer and simpler structures with high structural performance. In general, the use of HSS leads to weight reduction of the whole structure, which compensates the higher cost of such a material comparing to the conventional construction steels. Knowledge of the fatigue resistance of material plays the key role during design and maintenance of the bridge structures. This contribution brings a comparison of the fatigue crack growth resistance of S355 J0 steel. Differences in microstructure and the texture of material structure could generally play a role in the fatigue crack growth. This study shows that in the case of studied steel texture of material structure has an influence on material fatigue behavior in Paris' law regime.

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Section: Discussionmentioning

confidence: 99%

Influence of Micro-Structure on the Fatigue Crack Propagation in Bridge Steel

Pokorný

Miarka

Klusák

et al. 2018

The 18th International Conference on Experimental Mechanics

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“…Numerical modeling is increasingly promoting into design practice. Using powerful computers and efficient software systems can provide valuable results, which serve to increase the reliability of the proposed support systems and elements [1] as well as to a qualitatively higher level in the design of building structures [2][3][4][5][6][7][8][9]. An important tool for mathematical modeling is particularly the Finite Element Method -FEM, whose principle is to discrete continuum to certain (finite) number of elements and the determination of calculated parameters in individual nodes.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Analysis of Welds in Steel Structural Element

Mikolášek

Krejsa

Brožovský

et al. 2018

Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo

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“…This calculation method was applied in the solution of some engineering problems, among others, the assessment of reliability of steel bridge structures loaded by fatigue [5]. Probabilistic modelling of fatigue crack progression leads to designing a system of regular inspections of structures [6].…”

Section: Introduction To Probabilistic Computationmentioning

confidence: 99%

Using DOProC method in reliability assessment of steel elements exposed to fatigue

et al. 2017

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Abstract. Fatigue crack damage depends on a number of stress range cycles. This is a time factor in the course of reliability for the entire designed service life. Three sizes are important for the characteristics of the propagation of fatigue cracks -initial size, detectable size and acceptable size. The theoretical model of fatigue crack progression can be based on a linear fracture mechanic. Depending on location of an initial crack, the crack may propagate in structural element e.g. from the edge or from the surface. 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 and Bayesian approach, times for subsequent inspections can be determined. For probabilistic modelling of fatigue crack progression was used the original and new probabilistic method -the Direct Optimized Probabilistic Calculation ("DOProC"), which uses a purely numerical approach without any simulation techniques or approximation approach based on optimized numerical integration.

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Inspection Based Probabilistic Modeling of Fatigue Crack Progression

Cited by 27 publications

References 20 publications

Influence of Micro-Structure on the Fatigue Crack Propagation in Bridge Steel

Influence of Micro-Structure on the Fatigue Crack Propagation in Bridge Steel

Numerical and Experimental Analysis of Welds in Steel Structural Element

Using DOProC method in reliability assessment of steel elements exposed to fatigue

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