DOProC-based reliability assessment of steel structures exposed to fatigue

Janas, Petr; Krejsa, Martin; Kala, Zdeněk; Seitl, Stanislav

doi:10.1016/j.pisc.2015.11.037

Cited by 6 publications

(3 citation statements)

References 25 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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“…Most problems concerning the reliability of building structures are defined today as a comparison of two stochastic values, loading effects E and the resistance R, depending on the variable material and geometric characteristics of the structural element [5,6]. The probabilistic definition of the reliability condition is of the form…”

Section: Probabilistic Assessmentmentioning

confidence: 99%

Probabilistic safety assessment to determine the seismic fragility of NPP

Králik

2020

MATEC Web Conf.

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This paper gives the results of the probabilistic analysis of the seismic resistance of nuclear power plant (NPP) structures. The seismic probabilistic safety assessment based on the requirements of the agency IAEA and US NRC are presented. On the base of the geophysical and seismological monitoring of locality the peak ground acceleration and the spectrum of the acceleration was defined for the return period 104 years. There is showed summary of calculation models and calculation methods for the probability analysis of the structural safety considering load, material and model uncertainties. The numerical simulations were realized in the system ANSYS. The results from the safety analysis of the NPP structures with reactor VVER440 are presented.

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“…Numerical modeling supports more and more in practice as respects design. The use of the powerful computers and the effective software can provide the valid results, which are used to increase reliability in the structural design [1][2][3][4][5][6]. The complex mathematical procedures take account of physical and geometrical non-linearities of the structure [7].…”

Section: Introductionmentioning

confidence: 99%

Numerical Comparison of Cruciform weld and Butt weld simulation and a Study of Fracture Mechanics on Two Types of Welds

Bouchouicha

Malika²,

Chikh³

et al. 2019

Frattura Ed Integrità Strutturale

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The modeling of the welding is desirable to guess the deformation of the components during manufacture, the position and the magnitude of maximum residual stresses and to envisage metallurgical effects in specific zones. The welding are problems of complex modeling requiring the thermal and structural solutions. This has to lead to the development of several software packages and codes for simulation by finite elements. The welding condition, the properties of the structure and their interactions have significant influences on the thermal and structural responses (temperature history, distortion, and residual stress) in welded structures. This paper presents a finite element procedure for the prediction of welding-induced residual stresses and distortions. Comparison is made with tow numerical example. The first example is a butt welded joint of two plates, while the second is a Cruciform welded joint of two plates with four passes. Moreover, a comparison between the Cruciform weld and the butt-weld which we can obtain the parameters of the linear fracture mechanics; stress intensity factor K and energy release rate G.

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DOProC-based reliability assessment of steel structures exposed to fatigue

Cited by 6 publications

References 25 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

Probabilistic safety assessment to determine the seismic fragility of NPP

Numerical Comparison of Cruciform weld and Butt weld simulation and a Study of Fracture Mechanics on Two Types of Welds

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