Browsing Publikasjoner fra CRIStin - NTNU by Title
Now showing items 14068-14087 of 37669
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Fractional stability of trunk acceleration dynamics of daily-life walking: toward a unified concept of gait stability
(Journal article; Peer reviewed, 2017)Over the last decades, various measures have been introduced to assess stability during walking. All of these measures assume that gait stability may be equated with exponential stability, where dynamic stability is ... -
Fractional-order Control: Nyquist Constrained Optimization
(Peer reviewed; Journal article, 2020)The adoption of fractional calculus in control systems has enabled the synthesis of new controllers with fractional-order derivatives and integrals. Several optimization-based methods for tuning of linear fractional-order ... -
Fractional-order correntropy adaptive filters for distributed processing of alpha-stable signals
(Peer reviewed; Journal article, 2020)This work revisits the problem of distributed adaptive filtering in multi-agent sensor networks. In contrast to classical approaches, the formulation relaxes the Gaussian assumption on the signal and noise to the generalized ... -
Fractional-Order Correntropy Adaptive Filters for Distributed Processing of α -Stable Signals
(Journal article; Peer reviewed, 2020)This work revisits the problem of distributed adaptive filtering in multi-agent sensor networks. In contrast to classical approaches, the formulation relaxes the Gaussian assumption on the signal and noise to the generalized ... -
Fractional-order correntropy filters for tracking dynamic systems in alpha-stable environments
(Peer reviewed; Journal article, 2020)In an increasing number of modern filtering applications, the encountered signals consist of frequent sharp spikes, that cannot be accurately modeled using Gaussian random processes. Modeling the behavior of such signals ... -
Fractionation of Transition Metals by Solvent Extraction and Precipitation from Tannic Acid-Acetic Acid Leachate as a Product of Lithium-Ion Battery Leaching
(Peer reviewed; Journal article, 2022)Solvent extraction and precipitation schemes are applied to isolate copper, cobalt, manganese and nickel from leachate, produced from spent lithium-ion battery leaching using tannic acid-acetic acid as lixiviant. The metal ... -
Fractographic features of technically pure magnesium, AZ31 and ZK60 alloys subjected to stress corrosion cracking
(Peer reviewed; Journal article, 2020)Using quantitative fractography, the present study clarifies the effect of chemical composition and preliminary plastic deformation on the fracture mode of structural magnesium alloys experienced stress corrosion cracking ... -
Fracture analysis of V‐notched rubbers: An experimental and theoretical study
(Journal article, 2018)In this study, the rupture load in rubbers weakened by sharp V‐notch is investigated under mode I loading. To this end, first, mode I fracture tests are performed on V‐notched samples made of styrene‐butadiene rubbers and ... -
Fracture and fragmentation of blast-loaded laminated glass: An experimental and numerical study
(Journal article; Peer reviewed, 2019)In this study, we use the explicit finite element method in combination with higher order elements and 3D node splitting to simulate fracture and fragmentation of blast-loaded laminated glass. Node splitting is a modelling ... -
Fracture and negative Poisson’s ratio of novel spanned-fullerenes nanotube networks under tension
(Journal article; Peer reviewed, 2013)Carbon-based nanomaterials have attracted significant attention due to their unique physical properties. In this study, various multi-dimensional graphitic architectures are constructed by spanning fullerenes with carbon ... -
Fracture assessment of magnetostrictive materials
(Journal article; Peer reviewed, 2017)Giant magnetostrictive materials are gaining interest in the field of smart material, especially the commercially known Terfenol-D, that is an alloy made out of iron, terbium and dysprosium (Tb0.3Dy0.7Fe1.9). Since these ... -
Fracture assessment of PEEK under static loading by means of the local strain energy density
(Journal article; Peer reviewed, 2017)Polyetheretherketone (PEEK) has gained interest in many industrial applications due to its high strength-to-weight ratio, excellent heat tolerance and high corrosion resistance. Stress concentrators such as notches and ... -
Fracture assessment of polyacrylonitrile nanofiber-reinforced epoxy adhesive
(Journal article, 2018)Electrospun polyacrylonitrile (PAN) nanofibers were incorporated in an epoxy-based adhesive layer to improve the adhesive joint’s mechanical performance. The morphological study of the electrospun PAN nanofibers revealed ... -
Fracture Assessment of Quasi-brittle Rock Simulated by Modified Discrete Element Method
(Journal article; Peer reviewed, 2020)New developments of an in-house hybrid code, named Modified Discrete Element Method (MDEM) are presented in the paper. The new developments are on the treatment of pre-existing and propagating fractures in quasi-brittle ... -
Fracture assessment of U-notched graphite specimens by means of cohesive zone model
(Peer reviewed; Journal article, 2020)Various types of graphite have gained interest in many industrial applications due to their high strength and excellent heat tolerance. However, due to the brittle nature of this material, presence of stress concentrators ... -
Fracture assessment of U-notched PMMA under mixed mode I/II loading conditions by means of local approaches.
(Peer reviewed; Journal article, 2021)The paper investigates the fracture behaviour of U-notched specimens made of polymethylmethacrylate at room temperature under mixed mode loading conditions. The specimens are flat and double notched. The notches bisectors ... -
Fracture assessment of V-notched specimens with end holes made of tungsten-copper functionally graded material under mode I loading
(Journal article; Peer reviewed, 2018)The present research is the first to assess fracture of V-notches with end holes (VO-notches) made of tungsten-copper functionally graded material (W-Cu FGM) under mode I both experimentally and theoretically. W-Cu FGM ... -
Fracture behaviour of notched as-built EBM parts: Characterization and interplay between defects and notch strengthening behaviour
(Journal article, 2018)Additive manufacturing (AM) offers the potential to economically produce customized components with complex geometries. However, the introduction of complex geometry goes hand in hand with the presence of notches. Thus, ... -
Fracture mechanisms in largely strained solids due to surface instabilities
(Journal article; Peer reviewed, 2020)The effect of self-contacting surface defects generated by largely compressing metals on the ductile-to-brittle transition observed in metallic structures is investigated. In order to analyse such an effect, a finite element ... -
Fracture networks in sea ice
(Journal article; Peer reviewed, 2014-04-16)Fracturing and refreezing of sea ice in the Kara sea are investigated using complex network analysis. By going to the dual network, where the fractures are nodes and their intersections links, we gain access to topological ...