Searched for: subject:"Stress"
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Landman, H.M. (author)
After several recent flight safety events, such as the accident of Air France flight 447 in 2009, investigators determined that surprise and startle can severely disrupt pilot responses. They concluded that pilots need to be better prepared for unexpected and potentially startling situations. In response, aviation safety authorities have...
doctoral thesis 2019
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Bouquet, G.C. (author)
For the dimensioning of concrete structures it is customary to determine the forces and stresses occurring in construction elements on the basis of the prescribed loads. In an iterative process, the final dimensions of the elements and reinforcement are then determined. This process becomes less simple if not only the external loads, but also...
doctoral thesis 2019
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Quiros Solano, W.F. (author)
Drug development is a complex, time-consuming (10 - 15 years) and expensive process. For a new medicine to reach the market, the net expenses covered by the pharmaceutical industry have been estimated to be around $2.6 billion. Nevertheless, the risk of finding adverse effects or toxicity cases once the drug is already on the market is still...
doctoral thesis 2019
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Zhang, H. (author)
High power electronics with wide band gap semiconductors are becoming the most promising devices in new energy power suppliers and converters. Highly reliable die attach materials, serving as one of interconnections, play critical roles in power electronic packages and modules. Among which, the nanosilver paste/film has become a promising die...
doctoral thesis 2019
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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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Muraro, S. (author)
The geotechnical description of peats represents one of the main challenges in the Netherlands to assure the required safety standard and performance of the flood defence infrastructure. Almost a third of the country is situated below the sea and the rivers level with about 60% to 70% of the population and economic assets concentrated in low...
doctoral thesis 2019
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Munro, D.P. (author), Ayas, C. (author), Langelaar, M. (author), van Keulen, A. (author)
We study linearity assumptions in the transient macroscale mechanical aspect of additive manufacturing (AM) process simulation. Linearity assumptions are often resorted to in combination with calibrated inelastic deformation components to arrive at computationally tractable yet reasonably accurate AM process models. We point out that...
journal article 2019
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Yagisawa, Junji (author), van Damme, M. (author), Pol, J.C. (author), Bricker, J.D. (author)
Apart from the soil erodibility parameter, the critical shear stress is the most important parameter in predicting erosion rates. On the basis of experiments several empirical formulas have already been de-veloped which relate the critical shear stress to soil properties. Based on these findings and supported by new large scale experiments, a...
conference paper 2019
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van der Horst, Menno (author), van Kreveld, Sylvia (author), Kaminski, M.L. (author)
Wireless crack monitoring on ships and offshore structures based on Self Magnetic Flux Leakage (SMFL) measurements is a promising method to guarantee the structural integrity in a more effective way, leading to reduced operational costs and increased safety. For accurate crack sizing, the SMFL measurements must be interpreted correctly, also...
journal article 2019
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Mahajan, V.V. (author), Mehmood, J. (author), Damianidis Al Chasanti, Yousef M.F. (author), Padding, J.T. (author)
The rheology of suspensions of high-inertia (or granular) non-spherical particles characterized by high particle Stokes and Reynolds numbers is rarely investigated. In this study, we investigate the rheology of suspensions of inertial rod-like particles of aspect ratio 4 subjected to shear flow. In particular, the effect of fluid medium (air,...
journal article 2019
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Lu, T. (author), Tsouvalas, A. (author), Metrikine, A. (author)
A new high-order model for in-plane vibrations of rotating rings is developed in this paper. The inner surface of the ring is connected to an immovable axis through an elastic foundation (distributed springs), whereas the outer surface is traction free. The developed model enables the dynamic analysis of the rings on stiff elastic foundation...
journal article 2019
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Pari, M. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)
Sequentially linear analysis (SLA), a non-incremental-iterative approach towards finite element simulation of quasi-brittle materials, is based on sequentially identifying a critical integration point in the model, to reduce its strength and stiffness, and the associated critical load multiplier (λ <sub>crit</sub> ), to scale the linear...
journal article 2019
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Ahmadi Venhari, A (author), Tenpierik, M.J. (author), Taleghani, M. (author)
The aim of this study was to understand the effect of urban street greenery type and arrangements on thermal comfort and heat stress in summer. Field measurements and computer simulations were carried out on East-West (E-W) and North-South (N-S) oriented streets in Isfahan, Iran. Through the field measurements in July 2014, 17 different streets...
journal article 2019
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van Biert, L. (author), Godjevac, M. (author), Visser, K. (author), Purushothaman Vellayani, P.V. (author)
Direct internal reforming enables optimal heat integration and reduced complexity in solid oxide fuel cell (SOFC)systems, but thermal stresses induced by the increased temperature gradients may inflict damage to the stack. Therefore, the development of adequate control strategies requires models that can accurately predict the temperature...
journal article 2019
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Gonzalez Acosta, J.L. (author), Zheng, X. (author), Vardon, P.J. (author), Hicks, M.A. (author), Pisano, F. (author)
Stress oscillations in the material point method (MPM) are one of the major reasons unrealistic results are obtained. In this paper an investigation of the stress oscillations occurring when using one- and two-phase approaches is performed. Specifically, an axisymmetric benchmark and a two-dimensional plane strain problem are used to demonstrate...
conference paper 2019
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Xiao, Xia (author), Xiao, C. (author)
Stress interference of multiplied fractures has significant influences on the propagation behavior of hydraulic fractures in roads, bridges, clay formations, and other forms of engineering. This paper establishes a crossing criterion and initiation angle model with comprehensive consideration of remote stress, stress intensity near the tip of...
journal article 2019
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Mengolini, M. (author), Benedetto, Matías F. (author), Aragon, A.M. (author)
In this manuscript we thoroughly study the behavior of the virtual element method (VEM) in the context of two-dimensional linear elasticity problems for an engineering audience versed in standard FEM. Through detailed convergence studies we show the accuracy and the convergence rates recovered by VEM, and we compare them to those obtained by...
journal article 2019
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Zhao, Y. (author), Alderliesten, R.C. (author), Zhou, Zhengong (author), Fang, Guodong (author), Zhang, Jiazhen (author), Benedictus, R. (author)
In general, a finite width correction to stress intensity factor (SIF) is required in the fatigue crack growth. The finite width correction factor can be explained physically from the energy point of view. It is assumed that the finite width correction factor primarily constitutes an energy correction factor, i.e. it corrects the applied load...
journal article 2018
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Ma, X. (author)
Chemical degradation of cementitious materials is a serious threat to the durability and performance of concrete structures. External sulfate attack is one of the situations that may cause gradual but severe damage. Sulfate ions present in seawater, rivers, groundwater and industrial effluent can penetrate into the hardened concrete, and react...
doctoral thesis 2018
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Solcerova, A. (author)
Since more than half of the world population already lives in cities, it is important to understand the urban climate and its particularities. One of the typical aspects of urban areas is that cities are generally warmer than their rural surrounding. This phenomenon was first time described 200 years ago in the case of London and is commonly...
doctoral thesis 2018
Searched for: subject:"Stress"
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