Analytical evaluation of magnetic pulse deformation of TiNi alloy

Ostropiko, Eugeny; Krivosheev, S. I.; Magazinov, Sergey G.

doi:10.22226/2410-3535-2021-1-55-60

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…The electrical scheme for testing materials for uniaxial direct tension used in this work likes to the previously used one to study the mechanical properties of the TiNi alloy [ 43 , 44 , 45 ]. The experimental setup ( Figure 2 ) consisted of pulsed current generator 1 (PCG), curved flat conductors 2, samples of the studied material

and

, a fiber-optic system including the semiconductor laser 5 with power supply unit, photodetector module 10, circulator 7 with optical fibers 6 and fiber Bragg grating 8, as well as electronic unit 11 performing conversion (ADC), signal processing, and display of measurement results on the personal computer.…”

Section: Experimental Datamentioning

confidence: 99%

“…Parameters of current pulses: duration—1–5 microseconds; the maximum value of the current in the pulse—10–100 kA. The created pressure was transferred to the sample made of the special shape in such a way that its deformable part was subjected to uniaxial direct stretching [ 44 , 45 ].…”

Section: Experimental Datamentioning

confidence: 99%

“…The pressure pulse formed in the flat conductors was calculated from the obtained current waveforms. This pressure was transferred to the sample made in a special shape in such a way that the deformable part was subjected to uniaxial direct stretching [ 44 , 45 ]. An important advantage of the described method is the possibility of regulating the strength and duration of exposure to the material under study [ 46 , 47 , 48 ], and the disadvantage is the presence of strong electromagnetic interference, which makes it difficult to use common electronic sensors to measure the parameters of such exposure [ 49 , 50 ].…”

Section: Experimental Datamentioning

confidence: 99%

See 2 more Smart Citations

Application of Fiber Bragg Gratings as a Sensor of Pulsed Mechanical Action

Kiesewetter

Krivosheev

Magazinov

et al. 2022

Sensors

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The pulsed elongation of fiber Bragg gratings is considered in order to be used to measure the displacement or deformation rate of objects. Optimal measurement modes were determined, numerical simulation of the output signal was performed during pulsed elongation or compression of the fiber grating, and the main patterns were analyzed. The results of the application of the Bragg gratings for the experimental determination of the deformation rate of materials under pulsed magnetic action are presented. Experimentally obtained and theoretical dependencies are compared. The dependencies of the change in the grating parameters—the coefficient and the half-width of the reflection spectrum with successive shortening of the grating—are given.

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and

Section: Experimental Datamentioning

confidence: 99%

Section: Experimental Datamentioning

confidence: 99%

Section: Experimental Datamentioning

confidence: 99%

See 1 more Smart Citation

Application of Fiber Bragg Gratings as a Sensor of Pulsed Mechanical Action

Kiesewetter

Krivosheev

Magazinov

et al. 2022

Sensors

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“…Аналитическое описание процесса деформирования в рассматриваемой схеме нагружения было предложено ранее в [30]. В этой работе применяется тот же подход, но не для оценки максимально накопленной деформации, а для определения остаточной деформации с учетом разгрузки материала.…”

Section: аналитическая оценка и конечно-элементное моделированиеunclassified

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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