Capabilities of self-centering damping device based on pseudoelastic NiTi wires

Iasnii, Volodymyr; Yasniy, Oleh; Homon, Sviatoslav; Budz, Volodymyr; Ясній, Петро Володимирович

doi:10.1016/j.engstruct.2022.115556

Cited by 14 publications

(1 citation statement)

References 27 publications

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“…Due to these unique properties, SMAs are increasingly used in aerospace, mechanical engineering, microelectronics, and medicine 3,4 . They are successfully used at different temperatures and loading rates (mainly cyclic or dynamic) 5,6 . Nitinol is also used in building and bridge structures (in devices and systems to protect against seismic loads) 7 .…”

Section: Introductionmentioning

confidence: 99%

Frequency effect on low‐cycle fatigue behavior of pseudoelastic NiTi alloy

Iasnii,

Krechkovska,

Budz

et al. 2024

Fatigue Fract Eng Mat Struct

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This study presents experimental results on the effect of loading frequency during low‐cycle fatigue on the fracture mechanism and properties of pseudoelastic NiTi wire. The uniaxial tensile tests were performed in stress‐controlled mode over the 0.1–10 Hz frequency range. It was shown that the number of cycles before specimen failure decreased with increasing frequency from 0.1 Hz to 1 Hz but increased at frequencies above 1 Hz. It was fractographically shown that fatigue striations were observed on the fracture surfaces of specimens tested at all loading frequencies. A new type of fatigue striations was described on fracture specimens tested at frequencies up to 1 Hz. They are characterized by different spacing between successive striations with a change in the slope of the fracture at the transitions between them. This feature may be associated with forward and reverse phase transformations during half‐periods of loading and unloading of nitinol.

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