Exploració per tema "NiTi"
Ara es mostren els items 1-11 de 11
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Behavior of NiTi wires for dampers and actuators in extreme conditions
(2015-09-01)
Article
Accés obertShape memory alloys are considered smart materials because of their singular thermo-mechanical properties, due to a thermoelastic martensitic transformation, enabling possible uses as actuators (because of mechanical ... -
Built in dampers for stayed cables in bridges via SMA. The SMARTeR-ESF project: a mesoscopic and macroscopic experimental analysis with numerical simulations
(Elsevier, 2013-04)
Article
Accés obertShape Memory Alloys (SMAs) are good candidates for solid-state dampers appropriate for the oscillations of bridge stay cables because of their large recoverable strain, hysteresis and reasonable fatigue-life. This work ... -
Caracterització termomecànica d'actuadors amb memòria de forma NiTiCu
(Universitat Politècnica de Catalunya, 2015-07-15)
Tesi
Accés obertIn this thesis the thermomechanical characterization of the shape memory alloy NiTiCu working as an actuator with different heat treatment (HT) temperatures has been carried out. The results from the tests carried on ... -
Effect of temperature on the orthodontic clinical applications of NiTi closed-coil springs
(2013-07-01)
Article
Accés restringit per política de l'editorialNiTi spring coils were used to obtain large deformation under a constant force. The device consists on a NiTi coil spring, superelastic at body temperature, in order to have a stress plateau during the austenitic ... -
Effects of strain aging in NiTi SMA wire for dampers
(Elsevier, 2015)
Article
Accés obertThe thermo-mechanical properties of Shape Memory Alloys (SMA) as smart materials suggest their application as actuators, but also as dampers, thanks to the high damping properties during the hysteresis of the thermo-elastic ... -
Effects of strain aging in NiTi SMA wires for dampers
(Universidad del Pais Vasco, 2014)
Text en actes de congrés
Accés obertSMA NiTi wires experience evolution under constrained aging. A strain and temperature aging sequence is designed and experimented, to ascertain the functionality of the dampers exposed to weathering -
Microstructutal effects of strain aging on NiTi pseudoelastic wires by synchrotron X-ray micro-diffraction
(EDP Sciences, 2015-12)
Capítol de llibre
Accés obertStrain aging of NiTi wires and its structural consequences are studied by Synchrotron X-ray micro-diffraction -
NiTi superelastic orthodontic wires with variable stress obtained by ageing treatments
(2013-08)
Article
Accés restringit per política de l'editorialA new strategy to obtain NiTi orthodontic archwires with variable correcting stresses in different segments is presented. Different heat treatments are applied in selected segments, which produce variations in the superelastic ... -
Nuevo tratamiento de oxidación en aleaciones de NiTi para aplicaciones biomédicas. Caracterización superficial y respuesta biológica in vitro
(Universitat Politècnica de Catalunya, 2006-02-24)
Tesi
Accés obertDesde que fueron descubiertas en el principio de los años sesenta, las aleaciones con memoria de forma de NiTi han suscitado un interés creciente. Hoy en día, estos materiales se emplean extensivamente en el campo biomédico. ... -
Shape memory alloys as an effective tool to damp oscillations: study of the fundamental parameters required to guarantee technological applications
(2015-03-01)
Article
Accés obertThe SMA was studied for their macroscopic application in damping for civil engineering. The study is a synthesis and includes an outline of the models required for the SMA simulation and some case studies using the finite ... -
The SMA: an effective damper in civil engineering that smoothes oscillations
(Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-16)
Comunicació de congrés
Accés obertThe properties of SMA (Shape Memory Alloys, that are smart materials) are associated to a first order phase transition named martensitic transformation that occurs between metastable phases: austenite and martensite. At ...