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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H. (author)
This paper presents a probabilistic fatigue life prediction model for welded details subjected to variable amplitude random loading, using the nominal stress approach. The proposed model makes use of CA S-N curves in combination with the relative damage rule which allows to globally account for load interaction effects, and the damage limit...
article 2020
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Leonetti, D. (author), Snijder, H.H. (author), Maljaars, J. (author)
This present paper concerns the application of probabilistic fatigue life prediction models based on S–N curves aiming at the estimation of the safety level for a nonload carrying cruciform joint. The safety level is expressed in terms of the reliability index as a function of the number of applied cycles. Estimating the reliability of a...
article 2020
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H. (author)
article 2020
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Hashemi, B. (author), Maljaars, J. (author), Snijder, H.H. (author)
In order to design structural details of bridges for fatigue, the current version of the Eurocode for steel structures recommends partial factors for fatigue resistance based on the consequences of failure and on the maintenance method. The safe-life method is used for details where local formation of cracks could rapidly lead to failure or for...
conference paper 2019
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Leonetti, D. (author), Snijder, H.H. (author), Maljaars, J. (author)
Two basic procedures are currently available to determine the critical condition of a flawed structure, at which unstable crack extension may occur. The first method based on elastic-plastic fracture mechanics is accurate but requires a time consuming elastic-plastic finite element analysis. The second method estimates the critical condition...
conference paper 2019
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H. (author)
Before bolts were invented, hot-riveting was employed as technological process to produce built-up structural members of steel structures. Nowadays, these structures being still in service and susceptible to fatigue failure,they need to be assessed for their remaining service life. To estimate the fatigue life distribution of riveted connections...
article 2019
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Hofmeyer, H. (author), Vervoort, E.M.C. (author), Snijder, H.H. (author), Maljaars, J. (author)
An existing theoretical model indicates that the behaviour of trapezoidal steel sheeting under combined web crippling and bending moment may be modelled by only the sheeting's compressed flange. Therefore, this paper presents finite element models that simulate only the compressed flange of the sheeting, applying a prescribed displacement field...
conference paper 2018
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Hashemi, S.B. (author), Maljaars, J. (author), Snijder, H.H. (author)
In the Eurocode system, for fatigue design of bridges, the recommended partial factor for fatigue traffic loads is set to 1. In this paper, the adequacy of this approach is investigated by performing a reliability analysis on two types of welded joint in a main girder of a steel motorway bridge. For this purpose, a weigh in motion measurement...
bookPart 2018
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H.B. (author)
Estimating and reducing uncertaintyin fatigue test data analysis is a relevant task in order to assess the reliability of a structural connection with respect to fatigue. Several statistical models have been proposed in the literature with the aim of representing the stress range vs. endurance trend of fatigue test data under constant amplitude...
conference paper 2018
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H.B. (author)
Standards and guidelines for the fatigue design of riveted connections make use of a stress range-endurance (S-N) curve based on the net section stress range regardless of the number and the position of the rivets. Almost all tests on which S-N curves arebased, are performed with a minimum number of rivets. However, the number of rivets in a row...
conference paper 2018
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Hashemi, B. (author), Maljaars, J. (author), Leonetti, D. (author), Snijder, H.H. (author)
Reliability analysis is a crucial phase in assessing the safety status of new and existing structures. One of its applications is to predict the fatigue life of fatigue prone details. Two models are used to formulate the fatigue limit state: S-N curves in combination with Palmgren-Miner damage accumulation rule and linear elastic fracture...
article 2017
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H.B. (author)
In design against fatigue, a lower bound stress range vs. endurance curve (S-N curve) is employed to characterize fatigue resistance of plain material and structural details. With respect to the inherent variability of the fatigue life, the S-N curve is related to a certain probability of exceedance, a percentile of the fatigue life. This paper...
article 2017
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Dekker, R.W.A. (author), Snijder, H.H. (author), Maljaars, J. (author)
Clause 6.2 of EN 1993-1-1 covers the cross-sectional resistance of steel sections. The bending-shear interaction design rules for I-shaped cross-sections make use of a reduced yield stress for the web area. On this basis, a reduced design plastic resistance moment allowing for the shear force is presented. The effect of shear on the bending...
conference paper 2017
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Dekker, R.W.A. (author), Snijder, B.H. (author), Maljaars, J. (author)
Clause 6.2.8 of EN 1993-1-1 covers the design rules on bending-shear resistance, taking presence of shear into account by a reduced yield stress for the shear area. Numerical research on bending-shear interaction by means of the Abaqus Finite Element modelling soft-ware is presented. The numerical model is validated against the experimental...
conference paper 2016
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Claassen, W. (author), Snijder, H.H. (author), Koot, C.J.G. (author), Maljaars, J. (author)
De Hovenring is een schoolvoorbeeld van moeilijk voorspelbare trillingen. Ook wanneer wel direct voorzieningen waren opgenomen in het ontwerp, dan nog zou de problematiek zich hebben aangediend. In de praktijk bleken trillingen op te treden met hoge spanningsranges in grote aantallen, die volgens de analyses op basis van de norm vooraf niet...
article 2015
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Dekker, R.W.A. (author), Snijder, H.H. (author), Maljaars, J. (author)
The bending-shear resistance of steel cross-sections is covered in EN 1993-1-1 [1], taking presence of shear into account by a reduced yield stress for the shear area. An experimental investigation on bending-shear interaction of rolled HE280A beams in S235 and S355 was performed by means of 3-point bending tests. Two criteria were considered...
conference paper 2015
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Jusko, T.A. (author), Shaw, P.A. (author), Snijder, C.A. (author), Pierik, F.H. (author), Koch, H.M. (author), Hauser, R. (author), Jaddoe, V.W.V. (author), Burdorf, A. (author), Hofman, A. (author), Tiemeier, H. (author), Longnecker, M.P. (author)
The potential human health effects of bisphenol A (BPA) exposure are a public health concern. In order to design adequately powered epidemiological studies to address potential health effects, data on the reproducibility of BPA concentration in seri al urine specimens taken during pregnancy are needed. To provide additional data on the...
article 2014
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Silitonga, S. (author), Maljaars, J. (author), Soetens, F. (author), Snijder, H.H. (author)
In this work, a numerical method is pursued based on a cohesive zone model (CZM). The method is aimed at simulating fatigue crack growth as well as crack growth retardation due to an overload. In this cohesive zone model, the degradation of the material strength is represented by a variation of the cohesive traction with respect to separation of...
article 2014
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Snijder, C.A. (author), Heederik, D. (author), Pierik, F.H. (author), Hofman, A. (author), Jaddoe, V.W. (author), Koch, H.M. (author), Longnecker, M.P. (author), Burdorf, A. (author)
Background: Prenatal exposure to bisphenol A (BPA) has been associated with adverse birth outcomes, but findings of previous studies have been inconsistent. Objective: We investigated the relation of prenatal BPA exposure with intrauterine growth and evaluated the effect of the number of measurements per subject on observed associations. Methods...
article 2013
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Maljaars, J. (author), Snijder, H.H. (author)
The 'Hovenring' is a bicycle roundabout flyover built as a signature bridge with a central steel pylon carrying a circular bridge deck suspended through stay-cables. Shortly after installation of the bridge, the stay-cables turned out to vibrate in the wind due to vortex shedding. These vibrations have possibly caused fatigue damage in the...
conference paper 2013
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