The SMA: an effective damper in civil engineering that smoothes oscillations
Document typeConference lecture
PublisherUniversitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona
Rights accessOpen Access
The 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 upper temperature or at lower stress the austenite is the metastable phase. The martensite appears at lower temperature or higher stresses. The hysteresis of the transformation permits different levels of applications, i.e., in their use as a damper. Two types of applications can be considered in damping of structures in Civil Engineering. The first one is related to diminishing the damage induced by earthquakes. The second one is a reduction of oscillation amplitude associate to an increase of the lifetime for the stayed cables in bridges.
CitationTorra Ferré, Vicenç [et al.]. The SMA: an effective damper in civil engineering that smoothes oscillations. A: Jornada de Recerca i Innovació a l'Escola de Camins. "Jornada de Recerca i Innovació a l'Escola de Camins". Barcelona: Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011.