Search results for "stainless steel"

showing 2 items of 92 documents

Increasing the flexural capacity of RC beams using steel angles and pre-tensioned stainless steel ribbons

2016

This article presents an experimental programme on reinforced concrete beams retrofitted with steel angles and pre-stressed stainless steel ribbons to increase their flexural strength and ductility. Two different configurations of the steel ribbon were designed, and two companion specimens for each type considered were subjected to a four-point bending test to facilitate a direct comparison in the analysis of the effectiveness of the retrofitting technique. The influence of longitudinal steel angles and transverse stainless steel ribbons is analysed, and the concrete confinement due to stainless steel ribbons examined. The strengthened beams show remarkable increments in flexural strength a…

reinforced concrete beamCAMflexural capacityMaterials sciencesteel anglebusiness.industrystainless steel ribbonretrofitting0211 other engineering and technologies020101 civil engineering02 engineering and technologyBuilding and ConstructionStructural engineeringStrength of materials0201 civil engineeringSettore ICAR/09 - Tecnica Delle CostruzioniFlexural strengthMechanics of Materials021105 building & constructionRetrofittingGeneral Materials ScienceMaterials Science (all)CAM; flexural capacity; reinforced concrete beams; retrofitting; stainless steel ribbons; steel angles; Civil and Structural Engineering; Building and Construction; Materials Science (all); Mechanics of MaterialsbusinessCivil and Structural EngineeringStructural Concrete
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Comparison of local electrochemical impedance measurements derived frombi-electrode and microcapillary techniques

2009

Abstract In the present paper, local electrochemical impedance spectra were obtained on a 316L stainless steel from two configurations: a dual microelectrode (bi-electrode) and microcapillaries. With the bi-electrode, the local impedance measurements were made from the ratio of the applied voltage to the local current density calculated from the application of the ohm's law. With the use of microelectrochemical cells, the specimen surface area in contact with the electrolyte is limited by the use of glass microcapillaries and the local impedance was defined from the ratio of the local potential to the local current restricted to the analysed surface area. Differences and similarities observ…

spectroscopyLocal electrochemical impedanceChemistryGeneral Chemical EngineeringMatériauxAnalytical chemistryElectrolyteDielectric spectroscopyStainless steelMicroelectrodeElectrodeMicrocapillariesElectrochemistryEquivalent circuitBi-electrodesOhmComposite materialElectrical impedanceVoltage
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