Searched for: subject%3A%22Fatigue%22
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Maljaars, J. (author), Leonetti, D. (author), Hashemi, B. (author), Snijder, H.H.B. (author)
This paper presents a probabilistic framework to derive the safety factors for fatigue of steel and composite steel concrete road bridges. Engineering models are used for the design and the safety factor is derived in such a way that the design meets the target reliability set by international Eurocode and ISO standards, estimated using measured...
article 2022
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van As, S. (author), Beckers, D.G.J. (author), Veling H., (author), Hooftman, W. (author), Kompier, M.A.J. (author), Geurts, S.A.E. (author)
Objective. Demanding psychosocial work characteristics, such as high job demands, can have a detrimental impact on leisure–time physical activity (LTPA), with adverse consequences for employee health and well-being. However, the mechanisms and moderators of this crossover effect are still largely unknown. We therefore aimed to identify and test...
article 2022
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Deul, M.L. (author), van Lieshout, P. (author), Werter, N.P.M. (author)
An accurate fatigue life prediction is vital for the effectiveness and safety of a ship structure. The fatigue limit state is typically governing and con servatism is included to provide for a safe design. On the other side, minimizing conservatism is favourable, for reasons of cost, stability and payload (i.e. weight). The fatigue life...
conference paper 2022
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Hazendonk. L.S. van, (author), Pinto, A.M. (author), Arapov, K. (author), Pillai, N. (author), Beurskens, M.R.C. (author), Teunissen, J.P. (author), Sneck, A. (author), Smolander. M., (author), Rentrop, C.H.A. (author), Bouten, P.C.P. (author), Friedrich, H. (author)
Skin-compatible printed stretchable conductors that combine a low gauge factor with a high durability over many strain cycles are still a great challenge. Here, a graphene nanoplatelet-based colloidal ink utilizing a skin-compatible thermoplastic polyurethane (TPU) binder with adjustable rheology is developed. Stretchable conductors that remain...
article 2022
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Dekker, R. (author), van der Meer, F.P. (author), Maljaars, J. (author), Sluys, L.J. (author)
A numerical model for corrosion pit propagation under mechanical loading is presented. The level set method is used for corrosion front tracking and also enables the domain to be split into a solid and a pit domain. In the pit the diffusion of atoms originating from the dissolution process occurring at the pit front is simulated. The model is...
article 2021
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Slot, H. (author), Matthews, D. (author), Schipper, D. (author), van der Heide, E. (author)
article 2021
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Dekker, R. (author), van der Meer, F.P. (author), Maljaars, J. (author), Sluys, L.J. (author)
article 2021
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Maljaars, J. (author), Misiek, T. (author)
Many steel rope systems are subjected to fluctuating tensile loads and therefore can fail due to fatigue. Available fatigue test data indicate that rope diameter, mean stress, socket type, lay angle and rope length influence the fatigue resistance. Most of the tests were terminated before full failure of the ropes. This paper shows that the test...
article 2021
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Hengeveld, S.T. (author), Vervuurt, A.H.J.M. (author), Maljaars, J. (author)
conference paper 2021
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Dekker, R. (author), van der Meer, F.P. (author), Maljaars, J. (author), Sluys, L.J. (author)
This study presents calibration and validation of a cohesive extended finite element model for fatigue crack propagation in ductile materials. The approach relies on a separation between plasticity around the crack tip and fatigue crack growth at the crack tip such that the influence of plasticity on fatigue driving forces is predicted. This...
article 2021
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van de Ven, H. (author), Hulsegge, G. (author), de Korte, E.M. (author), Burdorf, A. (author), Oude Hengel, K.M. (author)
Objectives This study aimed to estimate acute effects of roster characteristics on fatigue and sleep quality and investigated whether these effects differed by individual characteristics. Methods Using an ecological measurement assessment survey, fatigue and sleep quality were daily measured among 223 shift workers for up to eight weeks. A...
article 2021
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Maljaars, J. (author), Euler, M. (author)
Bolts and bolted connections are frequently used in civil engineering steel structures. This paper presents a meta study where a few thousand fatigue tests on these elements are evaluated. The evaluation reveals that current specifications in design standards need updating to account for the relevant stress parameter and production methods. This...
article 2021
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Piil, J.F. (author), Kingma, B.R.M. (author), Morris, N.B. (author), Christiansen, L. (author), Ioannou, L.G. (author), Flouris, A.D. (author), Nybo, L. (author)
article 2021
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Leonetti, D. (author), Maljaars, J. (author), Snijder, B. (author)
Probabilistic fatigue life prediction models of welded steel joints are often used to estimate the level of safety, which is given in terms of the probability of failure or the reliability index as a function of the applied load cycles. Prediction models based on fracture mechanics allow taking into account the effect of inspections on the...
conference paper 2021
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Naafs, J.C. (author), Marchal, J.P. (author), Verkerk, P.H. (author), Fliers, E. (author), van Trotsenburg, A.S.P. (author), Zwaveling-Soonawala, N. (author)
Context. Central congenital hypothyroidism (CH) requires lifelong medical treatment. The majority of children with central CH have multiple pituitary hormone deficiencies (MPHD), but in some cases central CH is isolated. Most pituitary hormone deficiencies are associated with impaired health-related quality of life (HRQoL). However, studies on...
article 2021
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de Wind, A. (author), Beckers, D. (author), Nijp, H.H. (author), Hooftman, W. (author), de Boer, A.G.E.M. (author), Geurts, S.A.E. (author)
article 2021
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Slot, H.M. (author), Nicoreac, M. (author), Maljaars, J. (author)
Rolled steel plates and sections are often applied in structures in such a way that the principal load direction corresponds with the rolling direction. Examples are beams, arches, or pylons of bridges, supporting beams of ship decks, and the main elements of crane structures. However, some types of structure are subjected to a multiaxial stress...
article 2020
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Phogat, R. (author), González Díez, N. (author), Smeulers, J.P.M. (author), Casalino, D. (author), Avallone, F. (author)
Impeller rotation, vortex shedding, secondary flows or a combination of these phenomena can lead to the generation of acoustic waves in the compressor cascade causing dynamic pressure loading on the impeller. When the eigenfrequency and eigenmode shape of the acoustic mode match with the structural ones of the impeller, high fatigue stresses and...
conference paper 2020
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Niks, I. (author), van Drongelen, A. (author), de Korte, E. (author)
Background: Shift work can be demanding owing to disturbances in the biological and social rhythms. This can cause short-term negative effects in employees, such as increased fatigue and reduced alertness. A potential way to counteract these negative effects is to enhance employees’ recovery from work during working hours. Objective: The aim of...
article 2020
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van Beek, P.J.G. (author), González Díez, N. (author), Aardal, P. (author)
Flexible corrugated pipes as used for the transport of gas in offshore deepwater applications can generate undesired flow-induced pulsations (FLIP). This phenomenon has been also traditionally called “singing risers”. The pulsations generated may result in high-amplitude cyclic stresses in the pipe systems attached to the flexible. Moreover, an...
conference paper 2020
Searched for: subject%3A%22Fatigue%22
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