000015316 001__ 15316
000015316 005__ 20161115100218.0
000015316 04107 $$aeng
000015316 046__ $$k2016-08-21
000015316 100__ $$aBiggs, Daniel
000015316 24500 $$aPeriodic and propagating instabilities in superelastic NiTi wire twists

000015316 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015316 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015316 506__ $$arestricted
000015316 520__ $$2eng$$aShape memory alloy cables made from stranded NiTi wires are a relatively new adaptive structure that has only recently been explored. While straight SMA wires typically have a single nucleating front that propagates along the length of the wire, SMA cables have a varied propagation behavior from wire-like to a more spatially diffuse transformation. Experiments on 1x3 twists with varying twist helix angles were performed to establish the role of helix angle on the superelastic response of the material. The strain and temperature fields were also captured using stereo digital image correlation and thermography to record the propagation behavior. Finite element analysis simulations of the twists with a material model calibrated from straight wire data were shown to accurately predict the experimental data. The larger helix angle twists were shown to have increased stiction and relative motion between the wires leading to more wear.

000015316 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015316 653__ $$a

000015316 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015316 720__ $$aBiggs, Daniel
000015316 8560_ $$ffischerc@itam.cas.cz
000015316 8564_ $$s106701$$uhttps://invenio.itam.cas.cz/record/15316/files/TS.SM09-2.02.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2402, code TS.SM09-2.02
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000015316 962__ $$r13812
000015316 980__ $$aPAPER