Searched for: +
(1 - 20 of 22)

Pages

document
van Schie, M.S. (author), Liao, Rongheng (author), Ramdat Misier, Nawin L. (author), Knops, Paul (author), Heida, Annejet (author), Taverne, Yannick J.H.J. (author), de Groot, N.M.S. (author)
BACKGROUND AND AIMS: Atrial extrasystoles (AES) provoke conduction disorders and may trigger episodes of atrial fibrillation (AF). However, the direction- and rate-dependency of electrophysiological tissue properties on epicardial unipolar electrogram (EGM) morphology is unknown. Therefore, this study examined the impact of spontaneous AES on...
journal article 2023
document
Boddapati, Jagannadh (author), Flaschel, Moritz (author), Kumar, Siddhant (author), De Lorenzis, Laura (author), Daraio, Chiara (author)
When the elastic properties of structured materials become direction-dependent, the number of their descriptors increases. For example, in two-dimensions, the anisotropic behavior of materials is described by up to 6 independent elastic stiffness parameters, as opposed to only 2 needed for isotropic materials. Such high number of parameters...
journal article 2023
document
Zhu, Jia-Ning (author), Liu, K. (author), Riemslag, A.C. (author), Tichelaar, F.D. (author), Borisov, Evgenii (author), Yao, Xiyu (author), Popovich, Anatoly (author), Huizenga, R.M. (author), Hermans, M.J.M. (author), Popovich, V. (author)
Superelastic metallic materials possessing large recoverable strains are widely used in automotive, aerospace and energy conversion industries. Superelastic materials working at high temperatures and with a wide temperature range are increasingly required for demanding applications. Until recently, high-temperature superelasticity has only...
journal article 2023
document
Liu, K. (author), Sluiter, M.H.F. (author)
In a material under stress, grain boundaries may give rise to stress discontinuities. Stress localization is crucial to materials' behavior such as segregation, precipitation, and void nucleation. Here, the stress state at a grain boundary perpendicular to a uniaxial external stress is studied systematically. The grain boundary with the most...
journal article 2023
document
Bahadur, Jitendra (author), Chandra, D. (author), Das, Avik (author), Vishal, Vikram (author), Agrawal, Ashish Kumar (author), Sen, Debasis (author)
Pore orientation in shale governs the fluid transport properties that are key to hydrocarbon production and potential CO<sub>2</sub> sequestration. The present work deals with the detailed study of nano-heterogeneities in shales, across the bedding plane, of varying thermal maturity and total organic carbon content using scanning small-angle...
journal article 2023
document
Pluymakers, Anne (author), Bakker, R.R. (author), Ter Steege, F.B. (author), Versluis, B. (author), Barnhoorn, A. (author)
Many rocks contain planar heterogeneities, in the form of open fractures, veins and/or stylolites, but scarce data exist on how strength and fracture pattern formation is affected by the presence of a singular planar heterogeneity in an otherwise uniform matrix. The mechanics of stylolite-bearing and/or fractured limestone is of interest to...
journal article 2023
document
Xu, Y. (author), Šavija, B. (author)
A composite can have properties much better than the components it is made of. This work proposes a three-dimensional auxetic cementitious-polymeric composite structure (3D-ACPC) which incorporates 3D printed polymeric shell with cementitious mortar. Uniaxial compression experiments are performed on the 3D-ACPC to study their quasi-static...
journal article 2023
document
Basu, S. (author), Holtslag, Albert A.M. (author)
In this study, the stability dependence of turbulent Prandtl number (Pr<sub>t</sub>) is quantified via a novel and simple analytical approach. Based on the variance and flux budget equations, a hybrid length scale formulation is first proposed and its functional relationships to well-known length scales are established. Next, the ratios of...
journal article 2021
document
Callens, S.J.P. (author), Tourolle né Betts, Duncan C. (author), Müller, Ralph (author), Zadpoor, A.A. (author)
The organization and shape of the microstructural elements of trabecular bone govern its physical properties, are implicated in bone disease, and serve as blueprints for biomaterial design. To devise fundamental structure-property relationships and design truly bone-mimicking biomaterials, it is essential to characterize trabecular bone...
journal article 2021
document
Jones, Rhys (author), Rans, C.D. (author), Iliopoulos, Athanasios P. (author), Michopoulos, John G. (author), Phan, Nam (author), Peng, Daren (author)
The United States Air Force (USAF) Guidelines for the Durability and Damage Tolerance (DADT) certification of Additive Manufactured (AM) parts states that the most difficult challenge for the certification of an AM part is to establish an accurate prediction of its DADT. How to address this challenge is the focus of the present paper. To this...
journal article 2021
document
Eres-Castellanos, Adriana (author), Hidalgo Garcia, J. (author), Morales-Rivas, Lucia (author), Caballero, Francisca G. (author), Garcia-Mateo, Carlos (author)
The mechanisms driving variant selection phenomena in ausformed bainitic microstructures are not fully controlled yet. Previous results are not congruent among them, as they cannot be explained by the same rule. In this work, we aimed to understand the mechanisms governing variant selection in a medium carbon-high silicon steel subjected to...
journal article 2021
document
Tian, B. (author), Heringa, J.R. (author), Bouwman, W.G. (author)
Small angle scattering is frequently applied to study the anisotropy in complex soft matter systems. One emerging application is to probe the multi-scale structure in food matrices; while few models are available to describe the anisotropic scattering pattern in a quantitative, yet simple manner. For this purpose, anisotropy is introduced to...
journal article 2021
document
Eres-Castellanos, Adriana (author), Hidalgo Garcia, J. (author), Zorgani, Muftah (author), Jahazi, Mohammad (author), Toda-Caraballo, Isaac (author), Caballero, Francisca G. (author), Garcia-Mateo, Carlos (author)
The bainitic ferrite plate thickness is the main parameter that controls the strength of this type of microstructures. Such thickness has been proved to mainly depend on the austenite yield strength, the driving force for the transformation and the transformation temperature. However, no research has focused on how these parameters evolve...
journal article 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
Anand, C. (author), Delrue, Steven (author), Jeong, Hyunjo (author), Shroff, Sonell (author), Groves, R.M. (author), Benedictus, R. (author)
Phased array ultrasonic testing is widely used to test structures for flaws due to its ability to produce steered and focused beams. The inherent anisotropic nature of some materials, however, leads to skewing and distortion of the phased array beam and consequently measurement errors. To overcome this, a quantitative model of phased array...
journal article 2020
document
Wang, Zhaojun (author), Tian, B. (author), Boom, Remko (author), van der Goot, Atze Jan (author)
Dense calcium caseinate dispersions can be transformed into hierarchically fibrous structures by shear deformation. This transformation can be attributed to the intrinsic properties of calcium caseinate. Depending on the dispersion preparation method, a certain amount of air gets entrapped in the sheared protein matrix. Although anisotropy is...
journal article 2019
document
Wang, Zhaojun (author), Tian, B. (author), Boom, Remko (author), van der Goot, Atze Jan (author)
Calcium caseinate dispersions can be transformed into anisotropic, fibrous materials using the concept of shear-induced structuring. The aim of this study is to further investigate the relative importance of air bubbles and protein on the mechanical anisotropy of calcium caseinate material. In this study, the effect of air on mechanical...
journal article 2019
document
Dong, Xichao (author), Hu, Jiaqi (author), Hu, Cheng (author), Li, Y. (author), Sun, Shiyu (author)
The sub-satellite track of geosynchronous synthetic aperture radar (GEO SAR) presents the figure "8" or "O", which causes the great changes of platform motion direction and the different projection of anisotropic irregularities along the line-of-sight (LOS) direction. Due to the almost equal angle velocity to that of Earth, the GEO SAR has...
journal article 2019
document
Rans, C.D. (author), Michielssen, J. (author), Walker, M.S. (author), Wang, W. (author), Hoen-Velterop, Ludmila ’t (author)
A challenge in developing an in-depth understanding of the crack growth resistance of Additively Manufactured materials is the fact that their mechanical properties have been shown to be both process and part-geometry dependent. Up to now, no studies have investigated the influence of off-axis (beyond the three orthogonal build orientations)...
journal article 2018
document
Rocha, I.B.C.M. (author), Raijmaekers, S (author), van der Meer, F.P. (author), Nijssen, R. P.L. (author), Fischer, H. R. (author), Sluys, Lambertus J. (author)
A combined experimental and numerical investigation is conducted on the anisotropic water diffusion behaviour of unidirectional glass/epoxy composites. Experimental diffusivity values are obtained by immersing thin material slices for each of its planes of orthotropy extracted from a thick composite panel and interphase measurements are...
journal article 2017
Searched for: +
(1 - 20 of 22)

Pages