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Russian Journal of Nondestructive Testing

Erschienen in:

01.01.2021 | ACOUSTIC METHODS

Kinetics of Damage Accumulation and Failure in the Zones of Stress Raisers in Sample Rupture Tests

verfasst von: N. A. Makhutov, I. E. Vasiliev, D. V. Chernov, V. I. Ivanov, E. V. Terent’ev

Erschienen in: Russian Journal of Nondestructive Testing | Ausgabe 1/2021

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Abstract

The influence of various kinds of stress raisers on the processes of damage accumulation, initiation, and propagation of cracks in specimens of steel St3 under uniaxial tension has been considered. The investigated samples had a central aperture with diameter of ∅ = 5 mm or a transverse weld. The results of acoustic emission diagnostics showed that, despite the different nature of the stress raisers, the loading diagrams, the nature of damage accumulation and development of main cracks, the number of recorded acoustic emission (AE) events, and the activity of their recording, as well the dynamics of changes in the weight content of location pulses (\({{W}_{i}}\)) in the energy clusters of the low, medium, and high levels were quite similar, along with the values of these parameters during sample failure.

Vorheriger Artikel On the Specific Features of Using the Phenomenon of Acoustoelasticity When Testing the Stress State of Anisotropic Material of Technical Objects at Subzero Temperatures

Nächster Artikel Wavelet Packet Analysis of Shotcrete-Rock Structures Using the Impact-Echo Method

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Titel: Kinetics of Damage Accumulation and Failure in the Zones of Stress Raisers in Sample Rupture Tests
verfasst von: N. A. Makhutov
I. E. Vasiliev
D. V. Chernov
V. I. Ivanov
E. V. Terent’ev
Publikationsdatum: 01.01.2021
Verlag: Pleiades Publishing
Erschienen in: Russian Journal of Nondestructive Testing / Ausgabe 1/2021
Print ISSN: 1061-8309
Elektronische ISSN: 1608-3385
DOI: https://doi.org/10.1134/S1061830921010095

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