Listar ICMF - Artículos por título
Mostrando ítems 6-25 de 44
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Characterisation of the crack tip plastic zone in fatigue via synchrotron X-ray diffraction
(Universidad de Málaga, 2022-04-23)This paper describes a new methodology for characterising the plastic zoneahead of a fatigue crack. This methodology is applied to a set of experimentaldata obtained by synchrotron X-ray diffraction on a bainitic steel ... -
Comparison of the Aerodynamic Characteristics of the NACA0012 Airfoil at Low-to-Moderate Reynolds Numbers for any Aspect Ratio
(Scientific & Academic Publishing, 2016)This experimental work deais with the influence of the angle of attack (AoA) and the chord based Reynolds number (Rec) on the lift and drag coefficients for a low-aspect-ratio NACA0012 airfoil. In addition, we provide novel ... -
Corrections in numerical methodology to evaluate plasticity induced crack closure along the thickness.
(Elsevier, 2018-08-15)The influence of the three-dimensional effects of the distribution of the stress intensity factor in the numerical calculation of plasticity-induced crack closure is analysed in this paper. The usual methodology assumes ... -
Crack-face frictional contact modelling in cracked piezoelectric materials.
(Springer, 2019-06-24)Actuators, sensors, micro- and nano-electromechanical systems and other piezo- electirc components are generally constructed in block form or as a thin laminated com- posites. The study of the integrity of such materials ... -
Crack-induced electrical resistivity changes in cracked CNT-reinforced composites.
(Elsevier, 2020-01-03)Carbon nanotube (CNT)-reinforced composites exhibit a piezoresistive behavior that permits their use as sensors in novel structural health monitoring (SHM) applications, by measuring the electrical resistivity change of ... -
Critical plane based method for multiaxial fatigue analysis of 316 stainless steel
(Elsevier, 2022-04)In this work, the fatigue behaviour of 316 stainless steel is studied with different critical plane models. Seven cylindrical samples were used for the study, being subjected to different complex loading paths, generating ... -
Discontinuous quarter-point boundary elements revisited: Computation of T-stress in two-dimensional cracked components
(Elsevier Ltd., 2023-09-30)This paper analyzes the use of discontinuous quarter-point quadratic elements in a dual or hypersingular boundary element context to compute the T-stress for cracked 2-D isotropic components. The performance of this approach ... -
Dynamic Response of Low-Aspect-Ratio Cantilever NACA0012 Airfoil at Low-To-Moderate Reynolds Numbers
(Springer, 2018)The influence of the angle of attack (AoA) and the chord based Reynolds number (Rec) on the lift and drag coefficients has been analyzed experimentally in a low-aspect-ratio NACA0012 airfoil, AR 2. Results are shown for ... -
Energy-based critical plane fatigue methods applied to additively manufactured 18Ni300 steel
(Elsevier, 2023)In this work, the uniaxial and biaxial fatigue behaviour of maraging steel (18Ni300) obtained by additive manufacturing was studied. The material was evaluated using several biaxial load paths and different load levels. ... -
Epoxy resin and ground tyre rubber replacement for cement in concrete: Compressive behaviour and durability properties.
(Elsevier, 2018-04-24)In this research, the compressive behavior of concrete mixtures incorporating epoxy resin with and without hardener and ground rubber (tyre powder) as cement replacement was investigated. Various experimental mixes were ... -
Experimental validation of the new modular application of the upper bound theorem in indentation
(PlosOne, 2015-03-31)Nowadays, thanks to the new manufacturing processes, indentation is becoming an essential part of the new arising processes such as the Incremental Forming Processes. This work presents the experimental validation of the ... -
Experimental viscoelastic properties evaluation, under impact loads and large strain conditions, of coated & uncoated rubber from end-of-life tires
(Experimental viscoelastic properties evaluation, under impact loads and large strain conditions, of coated & uncoated rubber from end-of-life tires, 2022-03)End-of-life tires (ELTs) pose a serious environmental problem today due to their great ability to maintain their properties and not degrade under extreme conditions or over time. One of the ways to reuse this material ... -
Fatigue crack characterisation in 2024-T351 aluminium alloy through SEM observation combined with the CJP model
(Elsevier, 2023-01)This work characterises crack growth in AA2024-T315 by combining different methods to further increase the reliability of the results. The Christopher-James-Patterson (CJP) model was fitted to experimental data obtained ... -
Fatigue crack propagation analysis in 2024-T351 aluminium alloy using nonlinear parameters
(ELSEVIER, 2021-12)In this work, fatigue crack growth (FCG) in the 2024-T351 aluminium alloy is studied using the plastic CTOD range, Δδp. Experimental tests were performed on 12 mm thick CT specimens in order to obtain FCG rate and in ... -
Geometrical analysis in material extrusion process with polylactic acid (PLA)1carbon fiber.
(Emerald, 2022-12-22)Purpose: The purpose of this study is to cover the influence of selected printing parameters at a macro and micro-geometrical level, focusing on the dimensions, geometry and surface of printed parts with short carbon ... -
Improving the performance of lead-free piezoelectric composites by using polycrystalline inclusions and tuning the dielectric matrix environment
(Institute of Physics and IOP Publishing Limited, 2019-07)Piezoelectric composites are a class of smart materials that can be manufactured in a scalable manner through additive processes, while satisfying a wide range of applications. Recent efforts are directed towards lead-free ... -
Influence of milling parameters on mechanical properties of AA7075 aluminum under corrosion conditions
(MDPI, 2018-09-17)The paper describes an experimental study developed on the AA7075 T651, which is an aluminum alloy extensively used in the aeronautical industry. This work presents a double approach of investigation where there is no ... -
Influence of printing parameters and short carbon fibre reinforcement on fatigue behaviour, dimensional accuracy and macrogeometrical deviations of polylactic acid in material extrusion
(Elsevier, 2023-09)This paper evaluates the potential of short carbon fibres as a reinforcement material in order to improve the fatigue resistance of PLA. The fatigue behaviour has been analysed through rotational bending fatigue tests. The ... -
Influence of the auditory system on pressure distribution in the ear canal
(World Scientific Publishing Company, 2018)The pressure gain distribution along the ear canal is strongly dependent on boundary conditions, and, in normal conditions, the ear canal produces a 0–20-dB pressure gain close to the tympanic membrane in the 0.1–20kHz ... -
Influence of the level of connectivity on the members of the Octahedron and X-Octahedron families of tensegrities
(Elsevier, 2023-09-27)Tensegrity structures based on topological patterns have been developed greatly in recent years. Tensegrities obtained from the same pattern are said to belong to a family. Two examples of tensegrity families are the ...