10.14489/td.2025.01.pp.013-025

2025, 01 January

DOI: 10.14489/td.2025.01.pp.013-025

Stepanova L. N., Kurbatov A. N., Kabanov S. I., Beher S. A., Chernova V. V., Terekhova E. S.
RESEARCH OF THE POSSIBILITY OF COMPLEX APPLICATION OF ACOUSTIC EMISSION METHODS, TENSOMETRY AND EFFECT OF ACOUSTOELASTICITY FOR CONTROL OF CARBON PLASTIC RESTRICTS UNDER STATIC LOADING
pp. (13-25)

Abstract. The article presents results of studying the process of destruction of carbon fiber reinforced plastic samples under static tension. To control defects, strain gauge, acoustoelasticity effect and acoustic emission method were used. The possibility and advantages of using the acoustoelasticity method for determining deformations in a composite material are shown. The relationship between the deformation of carbon fiber and the time parameters of Lamb waves measured by the ultrasonic system "Acoustic-1" is established. The reliability of defect location is ensured by the acoustic emission method. In addition, the deformations were measured by the certified high-speed strain gauge system "Dynamics-3". During the tests, the results of deformation measurements obtained using strain gauge and the acoustoelasticity method were compared. Deformations were determined through the delay times of the elastic Lamb wave. It was found that the reduced errors obtained when measuring deformations through the delay times of the elastic Lamb wave were less than 5 %. The reduced errors obtained in determining the deformations of carbon fiber samples using strain gauges did not exceed 3 %. Using the effect of acoustoelasticity simplifies control, reduces the time for diagnosing defects in composite structures, and eliminates the operation of gluing strain.

Keywords: sample, carbon fiber, acoustoelasticity, strain measurement, acoustic emission, strain gauge, piezoelectric transducer, statics, time, speed, ultrasound.

+ - About the Authors Click to collapse

L. N. Stepanova (FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
A. N. Kurbatov (The Siberian Transport University, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
S. I. Kabanov (FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
S. A. Beher, V. V. Chernova (The Siberian Transport University, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
E. S. Terekhova (FAI “Siberian Aeronautical Research Institute named after S. A. Chaplygin”, Novosibirsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

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