Searched for: subject:"elasticity"
(1 - 20 of 210)

Pages

document
Aiple, M. (author)
This thesis explores possibilities and constraints in performing dynamic tasks through teleoperated robots. Teleoperation is commonly used to execute tasks by a human operator guiding a robot remotely through means of a teleoperation system. The teleoperation system bidirectionally mirrors the motions and forces between a handle device held by...
doctoral thesis 2021
document
Siroky, Georg (author), Kraker, Elke (author), Rosc, Jördis (author), Kieslinger, Dietmar (author), Brunner, Roland (author), van der Zwaag, S. (author), Kozeschnik, Ernst (author), Ecker, Werner (author)
This work provides an analysis of X-ray micro computed tomography data of Sn-xBi solders with x = 20, 30, 35, 47, 58 wt.% Bi. The eutectic thickness, fraction of eutectic and primary phase are analyzed. Furthermore, the 3D data is evaluated by means of morphology parameters, such as, shape complexity, flatness, elongation and mean intercept...
journal article 2021
document
Krstic, M. (author), Davalos, Julio F. (author), Rossi, E. (author), Chaves Figueiredo, S. (author), Copuroglu, Oguzhan (author)
Recent studies have shown promising potential for using Glass Pozzolan (GP) as an alternative supplementary cementitious material (SCM) due to the scarcity of fly ash and slag in the United States. However, comprehensive studies on the freeze-thaw (FT) resistance and air void system of mixtures containing GP are lacking. Therefore, this study...
journal article 2021
document
Kwak, Jeongho (author), Paschos, Georgios (author), Iosifidis, G. (author)
The advent of elastic Content Delivery Networks (CDNs) enable Content Providers (CPs) to lease cache capacity on demand and at different cloud and edge locations in order to enhance the quality of their services. This paper addresses key challenges in this context, namely how to invest an available budget in cache space in order to match...
journal article 2021
document
Jorna, Nienke (author)
Renewable energy sources like wind and solar, are intermittent, which means demand will not always match supply causing volatile and sometimes even negative electricity prices. For power companies it will be valuable to invest in technologies that can respond to those prices, which will result in an increasing flexibility of demand. However, to...
master thesis 2020
document
Spannenburg, Trevor (author)
Amsterdam and many other cities consist of a network of old quay walls, which sometimes have been constructed over a century ago. A large uncertainty exists concerning the current safety of these quay walls and their remaining service lifetime. In the current framework for the assessment of old urban quay walls, the influence of timber creep in...
master thesis 2020
document
De Biase, P. (author)
The world is now facing what seems to be the biggest crisis since the Great Depression. An unparalleled pandemic of a highly contagious virus in a globalized word. Early economic indicators and the death tolls are suggesting a gloomier situation than expected. Sub-national governments (SNGs) are at the forefront of this crisis, since they are...
master thesis 2020
document
Manmohan Sane, Omkar (author)
The growing demand and improvements in manufacturing capabilities, supported by government subsidies, has allowed the increase in the installed capacity of utility scale solar parks. Due to the remoteness in their location, the costs associated with dispatching personnel for maintenance is extremely high. A major contribution towards unscheduled...
master thesis 2020
document
Bussemakers, P.J.M. (author)
Climate change, as a result from global warming, requires an energy transition: the reduction of greenhouse gas emissions from fossil fuels and a radical innovation of the global energy system to proceed apace. Offshore wind is an important source of clean, renewable energy, and it plays a key role in the transition. 80% of the worldwide...
master thesis 2020
document
Douma, L.A.N.R. (author)
Mudstones play an important role in hydrocarbon exploration and production, carbon capture and storage, and nuclear waste disposal. The high concentration of clay minerals contribute to the high intrinsic anisotropy (e.g., velocity, strength, permeability, and resistivity changes with direction) of mudstones. This high anisotropy complicates,...
doctoral thesis 2020
document
Ament, Tjalling (author)
To optimize the exploitation of oil and gas reservoirs both on- and offshore, Biodentfiy has developed a method to predict prospectivity of hydrocarbons before drilling. This method uses microbiological DNA analysis of shallow soil or seabed samples to detect vertical upward microseepage from hydrocarbon accumulations, which change the...
master thesis 2020
document
Minato, S. (author), Wapenaar, C.P.A. (author), Ghose, R. (author)
To quantitatively image fractures with high resolution, we develop an elastic least-squares migration (LSM) algorithm coupled with linear-slip theory, which accurately addresses seismic wave interaction with thin structures. We derive a linearized waveform inversion using the Born approximation to the boundary integral equation for scattered...
journal article 2020
document
Boersma, Q.D. (author), Douma, L.A.N.R. (author), Bertotti, G. (author), Barnhoorn, A. (author)
In layered materials, the deformation style, orientation, confinement, and 3D connectivity of natural fractures is generally impacted by changes in sedimentary facies and alternations in mechanical properties. In this study we address this effect and perform a numerical sensitivity analysis. Mechanical properties, confining pressures, and...
journal article 2020
document
Chang, Z. (author), Schlangen, E. (author), Šavija, B. (author)
This paper reports an extended lattice model for printing process simulation of 3D printed cementitious materials. In this model, several influencing factors such as material and geometric nonlinearity are considered. Using this model, green strength of cementitious material is investigated, deformation and crack pattern can be derived, which...
book chapter 2020
document
Tavakoli, D. (author), Gao, P. (author), Tarighat, Amir (author), Ye, G. (author)
In this study, first of all, the atomistic structure of cement hydration products is estimated via molecular dynamics method and their elastic properties are extracted. Then, cement hydration simulation is done by HYMOSTRUC3D model and the obtained results from both molecular dynamics and HYMOSTRUC3D methods are used for simulation in macro...
journal article 2020
document
Lu, T. (author), Metrikine, A. (author), Steenbergen, M.J.M.M. (author)
A periodically supported beam on a visco-elastic half-space is considered to model the vibration of railway tracks. The viscosity of the half-space is assumed to be of the Kelvin-Voigt type. Making use of the concept of equivalent dynamic stiffness, the reaction of the half-space to the sleepers is replaced by a system of identical spring...
journal article 2020
document
Lu, T. (author), Tsouvalas, A. (author), Metrikine, A. (author)
The in-plane steady-state response of a rotating ring on elastic foundation subjected to a stationary load is investigated theoretically using a high-order model in the framework of the plane strain assumption. The adopted high-order model accounts for the through-thickness variation of stresses and displacements, as well as the boundary...
journal article 2020
document
Reinicke Urruticoechea, C. (author), Dukalski, M.S. (author), Wapenaar, C.P.A. (author)
The reflection response of strongly scattering media often contains complicated interferences between primaries and (internal) multiples, which can lead to imaging artifacts unless handled correctly. Internal multiples can be kinematically predicted, for example by the Jakubowicz method or by the inverse scattering series (ISS), as long as...
journal article 2020
document
Armstrong, Michael (author), Ravasio, Matteo (author), Versteijlen, W.G. (author), Verschuur, D.J. (author), Metrikine, A. (author), van Dalen, K.N. (author)
Determination of soil material damping is known to be difficult and uncertain, especially in the offshore environment. Using an advanced inversion methodology based on multichannel spectral analysis, Scholte and Love wave measurements are used to characterize subsea soil from a North Sea site. After normalization, a determinant-based objective...
journal article 2020
document
Mulder, W.A. (author)
The representation of a force or moment point source in a spectral finite-element code for modelling elastic wave propagation becomes fundamentally different in degenerate cases where the source is located on the boundary of an element. This difference is related to the fact that the finite-element basis functions are continuous across...
journal article 2020
Searched for: subject:"elasticity"
(1 - 20 of 210)

Pages