The determination of mechanical stresses using Rayleigh surface waves excited by a magnetoacoustic transducer

Khlybov, A. A.; Uglov, A. L.; Rodyushkin, V. M.; Katasonov, Yu. A.; Katasonov, O. Yu.

doi:10.1134/s1061830914120055

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…Из-за широкого распространения и доступности чаще используют датчики продольных и сдвиговых волн и, зная толщину материала, рассчитывают скорости их распространения. При одностороннем доступе к элементу конструкции используют времена распространения и различные их комбинации [21]. Иногда в исследованиях применяют распространяющиеся вблизи поверхности материала волны Рэлея.…”

Section: Introductionunclassified

Effect of Strain on the Elastic Anisotropy and Ultrasonic Wave Velocities in Low-Carbon Steel

Гончар

Kurashkin

Sergeeva

et al. 2022

PSP

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The results of experimental studies of the effect of plastic deformation on the velocities of transverse, longitudinal and head waves in hot-rolled sheet steel 20 are presented. Sheet-type specimens cut from the sheet along and across the rolling direction were tested in stages for uniaxial tension with a residual strain step of 4%.The tensile diagrams obtained for the specimens have the yield plateau, which is typical for low-carbon steel. After each stage, the specimens were unloaded and structurally sensitive ultrasonic measurements were carried out using shear, longitudinal and head wave transducers.It is found that the velocities of shear and longitudinal waves vary slightly until the moment of loss in local stability and the velocity of head waves decreases monotonically and in fact linearly with plastic deformation. The change in the anisotropy of the material elastic properties during plastic deformation is also investigated: monotonic dependences of the acoustic anisotropy parameter (birefringence of shear waves) and the relative difference in the velocities of longitudinal and head waves on the residual plastic strain are obtained. The presented ultrasonic investigations provide information about changes in the material structure due to plastic deformation: texture evolution and microdamage accumulation. Correlations between the material damage parameter and the elastic anisotropy parameters are obtained, which can be used for ultrasonic monitoring the state of plastically deformed steel. Additional optical studies of microstructure evolution on the surface have shown that during plastic deformation, grain rotations and localization of plastic deformation (Luders–Chernov bands) occur, as evidenced by the defocusing of individual microzones of the image, and persistent slip bands are formed in individual grains.

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Section: Introductionunclassified

Effect of Strain on the Elastic Anisotropy and Ultrasonic Wave Velocities in Low-Carbon Steel

Гончар

Kurashkin

Sergeeva

et al. 2022

PSP

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“…Proportionality and elastic limits are significant physical and mechanical properties of materials. Accurately measured, they provide products to be working under high loads with the specified operational capabilities at the design stage [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

The Method and Device for Automated Material Elastic and Proportionality Limits Calculation

Куц

Byshkin

Khodyrevskaya

2018

SSP

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Electromagnetic ultrasonic measurement for welding residual stress detection - comparison between experiment with numerical simulation

Wang

Feng

Shi

et al. 2019

J. Phys.: Conf. Ser.

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In order to study the feasibility of electromagnetic ultrasonic method on the welding residual stress detection in Q345R plate, experiments and numerical simulations were carried out. The welding residual stress in the plate was firstly measured by electromagnetic acoustic transducer (EMAT). Then, finite element model of welding process was established to predict the residual stress in plate, who’s rationality was verified by blind hole experiment. At last, the average of numerical simulation results at five points along the plate’s thickness direction was compared with the electromagnetic ultrasonic measurement results. The results show that the residual stress measured by EMAT is consistent with those from numerical simulation in direction of the weld. However, in the vertical direction of the weld, the deviation between EMAT results and numerical simulation is relatively large near the weld fusion line. This phenomenon is also found in the junction between the heat affected zone and the base metal.

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The determination of mechanical stresses using Rayleigh surface waves excited by a magnetoacoustic transducer

Cited by 9 publications

References 3 publications

Effect of Strain on the Elastic Anisotropy and Ultrasonic Wave Velocities in Low-Carbon Steel

Effect of Strain on the Elastic Anisotropy and Ultrasonic Wave Velocities in Low-Carbon Steel

The Method and Device for Automated Material Elastic and Proportionality Limits Calculation

Electromagnetic ultrasonic measurement for welding residual stress detection - comparison between experiment with numerical simulation

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