Fatigue crack growth modelling of Fão Bridge puddle iron under variable amplitude loading

Correia, José A.F.O.; Carvalho, Hermes; Lesiuk, Grzegorz; Mourão, António; Grilo, Lucas Figueiredo; Jesus, Abílio M.P. De; Calçada, Rui

doi:10.1016/j.ijfatigue.2020.105588

Cited by 28 publications

(14 citation statements)

References 31 publications

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“…The third phase is the last phase and is characterized by an unstable crack growth until the total failure. Several studies to characterize the fatigue crack propagation behaviour considering corrosion [63], variable amplitude loading [64], crack closure effects [65], mixicity conditions [66], as well as, using local approaches [67,68, have been suggested.…”

Section: Fracture Mechanics Approachmentioning

confidence: 99%

A brief review of fatigue design criteria on offshore wind turbine support structures

Mendes

Correia

Jesus

et al. 2020

Frattura Ed Integrità Strutturale

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In this paper, a brief review of the main fatigue design criteria and some advanced fatigue approaches applied to offshore structures (e.g. offshore wind turbines) are presented. It is extremely important to understand the fatigue phenomenon and how it affects structures since offshore structures are constantly submitted to cyclic loading and corrosive attacks that aggravate the problem. All the influencing factors and approaches used during the design phase are also discussed.

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Section: Fracture Mechanics Approachmentioning

confidence: 99%

A brief review of fatigue design criteria on offshore wind turbine support structures

Mendes

Correia

Jesus

et al. 2020

Frattura Ed Integrità Strutturale

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“…However, in the long-term service, fatigue cracking problems are present in many orthotropic steel bridge decks (OBDs). According to the statistics, fatigue almost accounts for 80%-90% of metallic failure [4][5][6]. Fatigue cracks occur for a variety of reasons, but there are three major reasons.…”

Section: Introductionmentioning

confidence: 99%

Optimization Analysis Method of New Orthotropic Steel Deck Based on Backpropagation Neural Network-Simulated Annealing Algorithm

Shi

et al. 2021

Advances in Civil Engineering

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To study the effects of the fatigue performance due to the major design parameter of the orthotropic steel deck and to obtain a better design parameter, a construction parameter optimization method based on a backpropagation neural network (BPNN) and simulated annealing (SA) algorithm was proposed. First, the finite element (FE) model was established, and the numerical results were validated against available full-scale fatigue experimental data. Then, by calculating the influence surface of each fatigue detail, the most unfavorable loading position of each fatigue detail was obtained. After that, combined with the data from actual engineering applications, the weight coefficient of each fatigue detail was calculated by an analytic hierarchy process (AHP). Finally, to minimize the comprehensive stress amplitude, a BPNN and SA algorithm were used to optimize the construction parameters, and the optimization results for the conventional weight coefficients were compared with the construction parameters. It can be concluded that compared with the FE method through single-parameter optimization, the BPNN and SA method can synthetically optimize multiple parameters. In addition, compared with the common weighting coefficients, the weighting coefficients proposed in this paper can be better optimized for vulnerable parts. The optimized fatigue detail stress amplitude is minimized, and the optimization results are reliable. For these reasons, the parameter optimization method presented in this paper can be used for other similar applications.

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“…Upon the determination of actual strength parameters of the material, it is then possible to evaluate the load-carrying capacity of structures built in this period, and to verify their operational safety on the basis of existing standards. It should be noted that the above works are undertaken in many countries around the world [6][7][8][9][10][11][12][13][14][15]-e.g., Poland [16][17][18][19][20][21][22]. Studies of various material properties of old steels extracted from the engineering structures other than bridges, are also very helpful in such analyses [23].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Bridge Steel from the Late 19th Century

Kossakowski

2021

Applied Sciences

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This article presents the results of testing of the strength of structural steel taken from a railway bridge. It was built within the borders of today’s Poland during the late 19th century and was in use for over 100 years, until the early 21st century. The main mechanical parameters of the bridge steel, such as its static and impact strength were determined. The results of the analysis of fracture surfaces with the aim of the identification of the material’s macrostructure are also presented. This article discusses the findings and analyses the values of material parameters in the context of requirements resulting from existing standards, and compares the results with those obtained during the testing of bridge steels of a similar age and operational period.

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Fatigue crack growth modelling of Fão Bridge puddle iron under variable amplitude loading

Cited by 28 publications

References 31 publications

A brief review of fatigue design criteria on offshore wind turbine support structures

A brief review of fatigue design criteria on offshore wind turbine support structures

Optimization Analysis Method of New Orthotropic Steel Deck Based on Backpropagation Neural Network-Simulated Annealing Algorithm

Mechanical Properties of Bridge Steel from the Late 19th Century

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