Shape memory alloy CuAlBe strands subjected to cyclic axial loads

Beltrán, Juan Felipe; Cruz, Cristian; Herrera, Ricardo; Moroni, Ofelia

doi:10.1016/j.engstruct.2011.06.015

Cited by 25 publications

(7 citation statements)

References 33 publications

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“…Recent studies [12][13] showed that the performance of stranded SMA ropes was dependent on the helix angle, and the energy dissipation capacity and self-centring ability were less satisfactory than single SMA wires. Moreover, the available studies mainly focused on the uniaxial cyclic performance of the strands with no specific discussion on the gripping strategy.…”

Section: Introductionmentioning

confidence: 99%

Superelastic SMA Belleville washers for seismic resisting applications: experimental study and modelling strategy

Fang

Zhou

Osofero

et al. 2016

Smart Mater. Struct.

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This study sheds considerable light on the potential of superelastic Shape Memory Alloy (SMA) Belleville washers for innovative seismic resisting applications. A series of experimental studies were conducted on washers with different stack combinations under varying temperatures and loading scenarios. The washers showed satisfactory self-centring and energy dissipation capacities at room temperature, although slight degradations of the hysteretic responses accompanied by residual deformations were induced. The hysteretic loops became stable after a few number of cycles, indicating good repeatability. The washers also showed good flexibility in terms of load resistance and deformation, which could be easily varied via changes in the stack combination. Compromised selfcentring responses were observed at temperatures below 0 °C or above 40 °C, and a numerical study, validated by the experimental results, was adopted to further investigate the deformation mechanism of the washers. A further phenomenological model, taking account of the degradation effects under varied temperatures, was developed to enable effective and accurate simulation of devices incorporating the washers. Good agreements were observed between the test and simulation results, and the model was shown to have good numerical robustness for wide engineering applications.

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Section: Introductionmentioning

confidence: 99%

Superelastic SMA Belleville washers for seismic resisting applications: experimental study and modelling strategy

Fang

Zhou

Osofero

et al. 2016

Smart Mater. Struct.

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“…Beltran et al [15] examined the mechanical characteristics and behavior of CuAlBe strands and compared both twisted and parallel configurations under cyclic tension. Reedlunn et al [14] conducted uniaxial tension experiments to investigate the superelastic behavior of two Nitinol cable constructions: 7 × 7 right regular lay and 1 × 27 alternating lay.…”

Section: Introductionmentioning

confidence: 99%

Experimental-Numerical Assessment of Mechanical Behavior of Laboratory-Made Steel and NiTi Shape Memory Alloy Wire Ropes

Narjabadifam,

Fazlalipour,

Mollaei

et al. 2024

Buildings

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The mechanical behaviors of laboratory-fabricated steel and superelastic shape memory alloy (SMA) wire ropes are assessed in this study through a comprehensive approach encompassing both experimental investigations and finite element (FE) numerical simulations. The assessment of steel wire ropes involves experimental scrutiny under sinusoidal cyclic loading and natural earthquake loading conditions. In parallel, SMA wire ropes’ behaviors are analyzed utilizing FE simulations employing the widely acknowledged ABAQUS software version 2020. The validation of all numerical simulations is undertaken against the experimentally observed behaviors. Moreover, full-scale steel wire ropes are subjected to shaking table tests to validate the simulations, facilitating a comparative analysis between the mechanical responses of SMA and steel wire ropes. The findings demonstrate that SMA wire ropes exhibit superelastic behavior akin to SMA wires, with marginal variations in overall response observed across distinct configurations, akin to steel wire ropes. Furthermore, augmenting the helix angle of SMA wire ropes results in reduced stress and increased strain when exposed to the El Centro earthquake scenario. Nevertheless, the mechanical response of SMA wire ropes closely mirrors that of a single wire.

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“…It was observed that the stiffness, energy dissipation capacity, and form setting ability can be increased by annealing at temperature of 350°C for 15 min. Beltran et al 26 also carried out tensile cyclic tests on the SMA strands that are constructed from CuAlBe wires arranged in helical or in parallel. Reedlunn et al 27 investigated the mechanical response of hierarchical subcomponents of two SMA cables with different wrapping configurations.…”

Section: Introductionmentioning

confidence: 99%

Hysteretic response and failure behavior of an SMA cable‐based self‐centering brace

Shi

Zhou

Ozbulut

et al. 2021

Structural Contr & Hlth

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This study explores the experimental response and failure behavior of an SMA cable brace. The kernel of the developed SMA brace consists of four SMA cables with a diameter of 8 mm. The cables are configured within bracing system in a way that they are only subjected to tensile loads regardless of the loading direction of the bracing itself. A mechanical anchorage system that can satisfactorily anchor SMA cables of the bracing system was first described, and its performance was validated. Then, the design and fabrication process of the SMA brace was discussed. Two SMA cable braces were manufactured and tested under different loading conditions. The first SMA brace was subjected to increasing displacement amplitude loading protocol until all SMA cables within the bracing system failed. The evolution of various parameters such as equivalent viscous damping and residual deformations with the displacement loading amplitude was quantitatively evaluated. The second SMA brace was tested for consistency verification and to study the effects of loading frequency and number of loading cycles on the response of the SMA brace. Results obtained from the experimental tests revealed the excellent self-centering behavior of SMA brace with an ultimate force capacity of 125 kN and a displacement capacity of 65 mm. The equivalent viscous damping for the developed brace was about 5%. The complete failure of the brace was gradual, and the SMA brace was able to carry large loads even after one or two SMA cables ruptured.

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Shape memory alloy CuAlBe strands subjected to cyclic axial loads

Cited by 25 publications

References 33 publications

Superelastic SMA Belleville washers for seismic resisting applications: experimental study and modelling strategy

Superelastic SMA Belleville washers for seismic resisting applications: experimental study and modelling strategy

Experimental-Numerical Assessment of Mechanical Behavior of Laboratory-Made Steel and NiTi Shape Memory Alloy Wire Ropes

Hysteretic response and failure behavior of an SMA cable‐based self‐centering brace

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