Searched for: subject%3A%22stress%22
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Jain, A. (author), van Dalen, K.N. (author), Metrikine, A. (author), Faragau, Andrei B. (author), Steenbergen, M.J.M.M. (author)
ransition zones in railway tracks experience strong amplification of stress and strain fields due to the passage of train over inhomogeneity. The inhomogeneity in these zones can be attributed to changes in mechanical properties of material along the longitudinal direction of the track, and to displacement/traction discontinuities at interfaces...
conference paper 2023
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Raja, A. (author), Schneegass, C. (author), Niforatos, E. (author)
Virtual Reality (VR) technology provides the elderly, and people with dementia, the opportunity to reminisce by exploring places outside their (care) home, free from age-related (physical) restrictions. However, the elderly are particularly vulnerable to overstimulation. Irresponsible VR design can cause stress and anxiety, potentially even...
conference paper 2023
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Lesueur, M. (author), Zhang, X. (author), Poulet, Thomas (author), Veveakis, Manolis (author)
The seminal work of Gurson (J Eng Mater Technol 99:2–5, 1977) on a simplified pore structure, a single spherical pore, first provided a theoretical relationship between the yield stress and the porosity. This contribution extends the approach to determine the macroscopic yield of a porous material by taking explicitly into account its...
conference paper 2023
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Kardan Halvaei, F. (author), Ahmadi, M. (author), Shekhar, A. (author), Bauer, P. (author)
EV Fast chargers are crucial to alleviate the driving range anxiety for E-mobility applications. A typical converter load profile consists of a short high-current pulse to rapidly refill the EV battery followed by a cooling-off period once the charging is completed. Power electronic components experience thermal cycles as a result, which can...
conference paper 2023
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Bouwhuis, Twan (author), Verwijmeren, Joris (author), Pijls, Ruth (author), Groen, Brenda (author)
Background and aim - Police interrogations tend to be very stressful. This comes at the expense of the effectiveness of interrogations as stressed suspects and witnesses provide less extensive and accurate statements. A more comfortable environment probably leads to more effective interrogations for all persons involved. The aim of this research...
conference paper 2022
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Meshkati, Ebi (author), Terwindt, Jarno (author), van Kessel, Thijs (author), Kirichek, Alex (author), Talmon, A.M. (author), Bezuijen, Adam (author)
Soft mud deposits are increasingly encountered around the world, from natural offshore deposits and mud layers in estuaries, ports, and waterways to progressively growing leftover from treatment and extraction facilities, mines, and oil refineries. Reliable monitoring of the temporal and spatial strength buildup in such deposits is crucial to...
conference paper 2022
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Mottram, J. Toby (author), Tromp, Liesbeth (author), Pavlovic, M. (author), Ramôa Correia, João (author), Keller, Thomas (author), Sena-Cruz, José (author)
It was essential in the European Technical Specification for the Design of Fibre- Polymer Composite Structures (prCEN/TS 19101) to provide an Ultimate Limit State design procedure for a failure criterion for multi-ply laminates subjected to in-plane combined actions, which will give a generically applicable and a simple design procedure. This...
conference paper 2022
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Pavlovic, M. (author), Christoforidou, A. (author), Keller, Thomas (author)
Challenges of reliable prediction of resistance of bonded joints lie in the complexity of stress concentrations, multiple crack paths, mode-mixity and sudden crack propagation. The new Technical Specification for Design of fibre-polymer composite structures (TS) is bridging this gap by providing comprehensive sets of design recommendations and...
conference paper 2022
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Li, Shizhen (author), Liu, X. (author), Fan, Jiajie (author), Tan, C. (author), Wang, S. (author), Xie, Bin (author), Ye, H. (author)
The wide-bandgap semiconductors represented by GaN have a broad application prospect because of their high service temperature and high switch frequency. Quad-Flat-No-Lead (QFN) Package is currently one of the mainstream packaging methods due to its low cost and high efficiency. However, the low reliability of QFN used in GaN devices is still...
conference paper 2022
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Nasrulin, B. (author), de Vos, M.A. (author), Ishmaev, G. (author), Pouwelse, J.A. (author)
The growing number of implementations of blockchain systems stands in stark contrast with still limited research on a systematic comparison of performance characteristics of these solutions. Such research is crucial for evaluating fundamental trade-offs introduced by novel consensus protocols and their implementations. These performance...
conference paper 2022
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Maarleveld, Arvid (author), Malschaert, D.H. (author), Veljkovic, M. (author)
Orthotropic bridge decks are susceptible to fatigue cracks which are influenced by the thickness of their components, welding procedure, type of the weld, the position of the considered detail in relation to the local loading condition and by residual stresses due to welding. The above-mentioned parameters determine the detail category for...
conference paper 2022
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Braun, Moritz (author), Dörner, Alfons (author), Willems, Tom (author), Seidel, Marc (author), Hendrikse, H. (author), Høyland, Knut V. (author), Fischer, Claas (author), Ehlers, Sören (author)
Fixed offshore wind turbines are increasingly developed for high latitude areas where not only wind and wave loads need to be considered, but also moving sea ice. Current structural design rules do not adequately consider the effect of ice loading on fatigue life, due to missing studies on fatigue strength of welded joints under combined wind,...
conference paper 2022
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Wang, XiaoX (author), Liu, JiaP (author), Zhong, PeiH (author)
When the corrosion expansion stress of the steel reinforcement exceeds the ultimate tensile strength of the concrete, the concrete will crack and eventually cause structural damage. Therefore, direct characterization methods of steel corrosion expansion stress can help predict the concrete cracking time, prevent corrosion expansion and repair...
conference paper 2021
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Ju, Siyi (author), Feng, Taotao (author), Wang, Liguo (author), Jiang, Jinyang (author)
In this paper, four kinds of ecological fine aggregates (manufactured sand, recycled sand, aeolian sand and river sand) were used to prepared UHPC, the effects of the fine aggregates on the workability, rheological properties and mechanical properties of UHPC were studied. The results reveal that the type and content of fine aggregate have an...
conference paper 2021
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Zhang, C. (author), Deng, Z.C. (author), Zhang, Y.M. (author), Chen, C. (author)
This paper develops an empirical model to predict the static yield stress of 3D printing mortar based on the flowability of paste and excess paste thickness. The components of the mortar are divided into paste and aggregate. The relation between the yield stress of mortar and the yield stress of paste and the excess paste thickness is...
conference paper 2021
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Khaloian, Ani (author), van de Kuilen, J.W.G. (author)
Before timber boards can be used for engineering applications, they need to be strength graded. This step is currently done based on visual or machine grading methods. Each approach may face problems such as frequent measurement (human) errors or problems in dynamic measurements due to missing density values, respectively. To increase...
conference paper 2021
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Ghaffarian Niasar, M. (author), Zhao, W. (author)
In this work, breakdown strength and lifetime curve of oil-impregnated paper (OIP) are compared at 50Hz and 1500 Hz. For the ramp breakdown tests, sinusoidal voltage ramp of 1 kVp/s is used. The ramp breakdown experiments is conducted on OIP samples made of single and double sheets of OIP. Weibull plots and interpretation of the results are...
conference paper 2021
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Li, X. (author), Jansen, K.M.B. (author), Zhang, X. (author), Rozendaal, M.C. (author), Jonker, C.M. (author)
Stress is an important aspect of mental health which impacts on wellbeing. Wearable devices are increasingly used to help people deal with stress in daily life. However, most of the current applications focus on detecting and representing physiological data. In this paper we report on the design of an integrated wearable system composed of...
conference paper 2020
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Schmelzer, M. (author), Dwight, R.P. (author), Cinnella, Paola (author)
In this work recent advancements are presented in utilising deterministic symbolic regression to infer algebraic models for turbulent stress-strain relation with sparsity-promoting regression techniques. The goal is to build a functional expression from a set of candidate functions in order to represent the target data most accurately....
conference paper 2020
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Plat-Robain, M. (author)
Hypnosis has already been used in very long flights by Bertrand Piccard, one of the two Solar Impulse pilots, to manage fatigue and rest periods. It is also used by navigators like Armel Le Cléac’h during solo races. For this reason we consider it is worth to look at such technics to cope with the constraints of long flights. A study was done in...
conference paper 2019
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