High Strain Rate Compression of Martensitic NiTi Shape Memory Alloy at Different Temperatures

Qiu, Yu; Young, Marcus L.; Nie, Xu

doi:10.1007/s11661-016-3857-0

Cited by 23 publications

(6 citation statements)

References 47 publications

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“…It is confirmed that the flag-shaped hysteric loop of the SMA material can be seen up to 1000s -1 . Many researchers, [9], [11], [20] , [21] , [22], [23], [24], [25] , [26], [27] and [28], studied the behaviour of SMA under low, medium, and high strain rates. The presented studies show that the range of strain rate for which the SMA maintains its energy dissipation capacity characteristics is up to 1000s -1 .…”

Section: Effect Of Strain Ratementioning

confidence: 99%

Behaviour of Smart Steel Column‐Beam Connection Under Blast Loading

Weli¹,

Gergely

2021

ce papers

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The generated damages in steel structures due to terrorist attack explosion has attracted structural engineering communities, because the effect of blast loading is extremely sever and destructive. The behavior of Superelastic Nickle Titanium Shape Memory Alloy (NiTi SMA) beam‐column connection was infrequently studied under the effect of blast loading. The present study develops smart steel beam‐column connection under the effect of blast loading. The performance of the proposed connection configuration is evaluated numerically to make better understanding of the conceptual design of NiTi SMA‐based smart bolted connections. NiTi SMA‐based smart connection stiffness and strength is determined based on Eurocode steel joint design procedures. Analytically, Simplified Kingery Airblast Calculations approach is used to generate time history blast reflected overpressure parameters. The austenite effect of NiTi‐SMA is introduced to the global 2D frame model by moment rotation capacity curves. The structural components are verified in Ultimate Limit State (ULS) by using the results of global 2D model. The outputs from the 2D global model is introduced in sub‐numerical models. The sub‐models examined by finite element software code. The result shows that the hysteresis flag‐shaped loop of NiTi‐SMA is well expressed by the sub‐models' numerical solutions. As a result, the proposed connection configuration can highlight the efficiency of NiTi‐SMA in terms of energy dissipation capacity under blast loading successfully.

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Section: Effect Of Strain Ratementioning

confidence: 99%

Behaviour of Smart Steel Column‐Beam Connection Under Blast Loading

Weli¹,

Gergely

2021

ce papers

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“…Известно, что функциональные свойства сплавов с памятью фор-мы зависят от формы предварительного нагружения и скорости деформации. Много исследований посвящено влиянию скорости деформирования на механические свойства и структуру сплавов [13][14][15][16][17][18], на исследование псевдоупругого поведения [19][20][21][22] и на проявление функциональных свойств [23][24][25][26]. Почти все исследования связаны с испытаниями на сжатие.…”

Section: Introductionunclassified

Магнитно-импульсное деформирование сплава TiNi: эксперимент и расчет

Ostropiko¹,

Magazinov²,

Krivosheev³

2022

Журнал Технической Физики

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Magnetic-pulse loading methods have been known since the 80s of the XX century and, as a rule, are used to determine the laws of destruction of materials under the action of pressure pulses with a duration of several microseconds. A modified scheme of a magnetic-pulse setup for high strain rate uniaxial tension is used in this work. The application of the scheme with the possibility of experimental measurement of the strain accumulation time and strain rate is shown on samples of TiNi alloy. The paper presents the results of finite element modeling and analytical description. Both approaches have demonstrated good agreement between the calculated residual strain and experimental results, even on samples of TiNi alloy with a specific stress-strain diagram. The analytical solution showed good qualitative agreement in assessing the strain accumulation time. On the basis of the analytical solution, an assessment of the capabilities of the magnetic-pulse loading method for uniaxial high strain rate tension is presented.

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“…For example, in [19], the authors showed the influence of preliminary annealing on the mechanical behaviour of TiNi alloy under dynamic compression with a strain rate above 1000 s −1 . In [25], the authors showed the influence of strain rates on the structure of the low-temperature (martensitic) and high-temperature (austenitic) phases. They tested samples by compression at strain rates of 400, 800, and 1200 s −1 at two temperatures (room temperature and 100°C), but did not investigate the functional properties during subsequent heating.…”

Section: Introductionmentioning

confidence: 99%

Functional behaviour of TiNi shape memory alloy after high strain rate deformation

Ostropiko

Konstantinov

2021

Materials Science and Technology

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This paper presents an investigation of the influence of strain rate on the functional behaviour of TiNi alloy. Specimens were deformed in compression and tension modes using the Kolsky method for a split Hopkinson pressure bar, and its modification in martensitic, austenitic, and pre-martensitic states at 500, 1000, and 1500 s−1 strain rates. One-way shape memory and two-way shape memory (TWSM) effects were measured and compared with ones after quasi-static deformation. With an increase in the strain rate, the one-way shape memory effect decreased, but the TWSM effect increased. Functional behaviour indirectly demonstrated the sensitivity of the martensite reorientation and the formation of stress-induced martensite to strain rate. Strain rate sensitivity led to differences in the shape recovery curves during thermocycling.

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High Strain Rate Compression of Martensitic NiTi Shape Memory Alloy at Different Temperatures

Cited by 23 publications

References 47 publications

Behaviour of Smart Steel Column‐Beam Connection Under Blast Loading

Behaviour of Smart Steel Column‐Beam Connection Under Blast Loading

Магнитно-импульсное деформирование сплава TiNi: эксперимент и расчет

Functional behaviour of TiNi shape memory alloy after high strain rate deformation

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