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dc.contributor.authorIsalgué Buxeda, Antonio
dc.contributor.authorAuguet Sangrá, Carlota E.
dc.contributor.authorTorra Ferré, Vicenç
dc.contributor.authorCarreras, Guillem
dc.contributor.authorLovey, Francisco Carlos
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2021-01-18T08:59:17Z
dc.date.available2021-01-18T08:59:17Z
dc.date.issued2015
dc.identifier.citationIsalgue, A. [et al.]. Effects of strain aging in NiTi SMA wire for dampers. "Materials Today: Proceedings", 2015, vol. 2, p. S983-S986.
dc.identifier.issn2214-7853
dc.identifier.urihttp://hdl.handle.net/2117/335433
dc.description.abstractThe 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 martensitic transformation. Damping in civil engineering is needed to minimize earthquake effects on buildings, and also to limit the damage produced by wind or traffic induced oscillations in stayed cables in bridges. In this work, we explore the consequences of strain aging the material at moderate temperatures (100 °C). A quasi-static stress and temperature aging of NiTi SMA wires of 2.46 mm diameter was done at 373 K. The experimental measurements establish a monotonic effect related to the introduced strain. Aging under larger strains modifies the hysteretic shape and induces an increase in the maximal stress on the transformation from 600 MPa to 800-1000 MPa. Aging at 373 K under 7-8% strain, the effect was up to 200 MPa in three months and near 400 MPa in eight months. The modified stress-strain curves suggest potential application as dampers under larger summer-winter temperature changes, i.e., from 233 to 323 K.
dc.language.isoeng
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física::Física de l'estat sòlid
dc.subject.lcshDamping (Mechanics)
dc.subject.lcshStrain gages
dc.subject.lcshStructural stability
dc.subject.lcshBuildings--Performance
dc.subject.otherSMA
dc.subject.otherNiTi
dc.subject.otherDampers
dc.subject.otherAging
dc.subject.otherStrain aging
dc.titleEffects of strain aging in NiTi SMA wire for dampers
dc.typeArticle
dc.subject.lemacAmortiment (Mecànica)
dc.subject.lemacMesuradors de deformació
dc.subject.lemacEdificis--Comportament
dc.subject.lemacEstabilitat estructural
dc.contributor.groupUniversitat Politècnica de Catalunya. AIEM - Arquitectura, energia i medi ambient
dc.contributor.groupUniversitat Politècnica de Catalunya. BIOCOM-SC - Grup de Biologia Computacional i Sistemes Complexos
dc.identifier.doi10.1016/j.matpr.2015.07.446
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S2214785315006914
dc.rights.accessOpen Access
local.identifier.drac30308034
dc.description.versionPostprint (published version)
local.citation.authorIsalgue, A.; Auguet, C.; Torra, V.; Carreras, G.; Lovey, F.C.
local.citation.publicationNameMaterials Today: Proceedings
local.citation.volume2
local.citation.startingPageS983
local.citation.endingPageS986


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