Searched for: subject%3A%22Size%255C%2Beffects%22
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Roosen, M.A. (author)
In the design process of prestressed bridges and viaducts, the required amount of shear reinforcement is determined with a model that assumes the presence of flexural cracks. In order to keep the design process simple, this model is also prescribed to determine the amount of shear reinforcement for the regions of the structure in which, at the...
doctoral thesis 2021
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Jamali, S.H. (author)
Knowledge on transport properties of fluids is of great interest for process<br/>and product design development in the chemical, food, pharmaceutical, and<br/>biotechnological industry. In the past few decades, molecular simulation has<br/>become a powerful tool to calculate these properties. In this context, Molecular<br/>Dynamics (MD) is...
doctoral thesis 2020
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Chang, Z. (author), Zhang, Hongzhi (author), Schlangen, E. (author), Šavija, B. (author)
The lattice fracture model is a discrete model that can simulate the fracture process of cementitious materials. In this work, the Delft lattice fracture model is reviewed and utilized for fracture analysis. First, a systematic calibration procedure that relies on the combination of two uniaxial tensile tests is proposed to determine the input...
journal article 2020
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Celebi, A.T. (author), Jamali, S.H. (author), Bardow, André (author), Vlugt, T.J.H. (author), Moultos, O. (author)
The number of molecules used in a typical Molecular Dynamics (MD) simulations is orders of magnitude lower than in the thermodynamic limit. It is therefore essential to correct diffusivities computed from Molecular Dynamics simulations for finite-size effects. We present a comprehensive review on finite-size effects of diffusion coefficients...
journal article 2020
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Zhang, H. (author)
Cementitious materials are heterogeneous on mutliple length scales, from nanometres to metres. Consequently, their macroscopic mechanical properties are affected by material structures at all length scales. In pursuit of fundamental understanding the relationship between their multiscale heterogeneous material structure and mechanical properties...
doctoral thesis 2019
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Parayil Venugopalan, S. (author)
doctoral thesis 2019
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Irani, N. (author), Nicola, L. (author)
During plastic deformation, metal surfaces roughen and this has a deleterious impact on their tribological performance. It is therefore desirable to be able to predict and control the amount of roughening caused by subsurface plasticity. As a first step, we focus on modelling plastic deformation during contact shearing of an FCC metallic...
journal article 2019
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Dawass, N. (author), Krüger, Peter (author), Schnell, S. K. (author), Bedeaux, D. (author), Kjelstrup, S (author), Simon, J. M. (author), Vlugt, T.J.H. (author)
The modelling of thermodynamic properties of liquids from local density fluctuations is relevant to many chemical and biological processes. The Kirkwood–Buff (KB) theory connects the microscopic structure of isotropic liquids with macroscopic properties such as partial derivatives of activity coefficients, partial molar volumes and...
journal article 2018
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Dikken, R.J. (author)
Sustainability has become an integral part of todays society. A thorough understanding of friction as a major cause of energy dissipation is therefore highly relevant. Friction of rough surfaces in contact is a physical phenomenon that involves multiple length- and time-scales, complicating a full understanding of friction. The fundamental study...
doctoral thesis 2017
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Malagu, M. (author)
The development of carbon nanotube(CNT)-polymer composites advocates for a better understanding of their physical and mechanical properties that depend on the diameter of the embedded CNTs. Given that the experimental assessment of size effects is extremely difficult, the use of numerical models can be enormously helpful. However, since size...
doctoral thesis 2017
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Irani, N. (author), Remmers, Joris J.C. (author), Deshpande, Vikram S. (author)
Plastic size effects in single crystals are investigated by using finite strain and small strain discrete dislocation plasticity to analyse the response of cantilever beam specimens. Crystals with both one and two active slip systems are analysed, as well as specimens with different beam aspect ratios. Over the range of specimen sizes...
journal article 2017
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Ng Wei Siang, K. (author), Nicola, L. (author)
Discrete dislocation plasticity simulations are carried out to investigate the static frictional response of sinusoidal asperities with (sub)-microscale wavelength. The surfaces are first flattened and then sheared by a perfectly adhesive platen. Both bodies are explicitly modelled, and the external loading is applied on the top surface of...
journal article 2017
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Shafqat, Salman (author), Hoefnagels, Johan P.M. (author), Savov, A.M. (author), Joshi, S. (author), Dekker, R. (author), Geers, Marc G.D. (author)
The exciting field of stretchable electronics (SE) promises numerous novel applications, particularly in-body and medical diagnostics devices. However, future advanced SE miniature devices will require high-density, extremely stretchable interconnects with micron-scale footprints, which calls for proven standardized (complementary metal-oxide...
journal article 2017
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Ng Wei Siang, K. (author)
doctoral thesis 2016
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Sun, F. (author)
The ultimate objective of this work is to gain a better understanding of the plastic behavior of rough metal surfaces under contact loading. Attention in this thesis focuses on the study of single and multiple asperities with micrometer scale dimensions, a scale at which plasticity is known to be size dependent. The asperities have very simple...
doctoral thesis 2016
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Malagù, Marcello (author), Lyulin, Alexey (author), Benvenuti, Elena (author), Simone, A. (author)
Molecular-dynamics simulations of single-walled carbon nanotubes (CNTs) embedded in a coarse-grained amorphous monodisperse polyethylene-like model system have been carried out. The roles of nanotube diameter and chirality on the physical and structural properties of the composite are thoroughly discussed for several CNTs with different...
journal article 2016
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Lahuerta Calahorra, F. (author), Westphal, T. (author), Nijssen, R.P.L. (author), Van der Meer, F.P. (author), Sluys, L.J. (author)
conference paper 2014
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Qian, Z. (author), Deng, X. (author), Li, Z. (author), Dollevoet, R.P.B.J. (author)
The rolling contact of elastic bodies (upper body and lower body) can be analyzed with the Hertz theory and the Kalker’s model. It is generally believed that the width of the contact area should be much smaller than the characteristic size of each elastic body, to ensure that the half-space assumption is valid. However the definition of “much...
conference paper 2014
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Lahuerta, F. (author), Westphal, T. (author), Nijssen, RPL (author), van der Meer, F.P. (author), Sluys, Lambertus J. (author)
The aim of this work is to study the thickness effect in static and fatigue tests of glass-fibre unidirectional compression coupons. For this purpose, the self-heating effect, the effect of specimen geometry, and the influence of the manufacturing processes have been minimized. A scaled thickness compression coupon has been designed with the...
conference paper 2014
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Liu, X.G. (author), Or, S.W. (author), Li, B. (author), Ou, Z.Q. (author), Zhang, L. (author), Zhamg, Q. (author), Geng, D.Y. (author), Yang, F. (author), Li, D. (author), Brück, E.H. (author), Zhang, Z.D. (author)
journal article 2010
Searched for: subject%3A%22Size%255C%2Beffects%22
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