The effect of preliminary cyclic loading on acoustic emission parameters and damage of structural steels
Publication type: Journal Article
Publication date: 2020-12-01
General Engineering
Energy Engineering and Power Technology
Abstract
Preliminary cyclic loading of structural low-carbon and 15Cr2MnMoV steels specimens to a relative lifetime of 0.3, 0.5 and 0.7 were conducted. After preloading, tensile tests with the acoustic emission (AE) registration were performed and the effects of preliminary cyclic loading on the intensity (dNAE/dt), the cumulated number (ΣNAE) and energy (ΣEAE)of acoustic emission signals, and the bAE-value (the slope coefficient of cumulative distributions of the AE signals amplitudes) were investigated. According to the test results, the dependencies of the AE parameters on the relative deformation were plotted. An analysis of these dependencies made it possible to distinguish the stages of changes in AE characteristics that correlate with the stages of changes in mechanical properties and material damage. New relations connecting acoustic emission parameters to the relative number of cycles before fracture of steels studied were obtained.
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Botvina L. R. et al. The effect of preliminary cyclic loading on acoustic emission parameters and damage of structural steels // Procedia Structural Integrity. 2020. Vol. 28. pp. 2118-2125.
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Botvina L. R., Tyutin M. R., Sinev I. O., Bolotnikov A. I. The effect of preliminary cyclic loading on acoustic emission parameters and damage of structural steels // Procedia Structural Integrity. 2020. Vol. 28. pp. 2118-2125.
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TY - JOUR
DO - 10.1016/j.prostr.2020.11.038
UR - https://doi.org/10.1016/j.prostr.2020.11.038
TI - The effect of preliminary cyclic loading on acoustic emission parameters and damage of structural steels
T2 - Procedia Structural Integrity
AU - Botvina, L. R.
AU - Tyutin, M R
AU - Sinev, I O
AU - Bolotnikov, A I
PY - 2020
DA - 2020/12/01
PB - Elsevier
SP - 2118-2125
VL - 28
SN - 2452-3216
ER -
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@article{2020_Botvina,
author = {L. R. Botvina and M R Tyutin and I O Sinev and A I Bolotnikov},
title = {The effect of preliminary cyclic loading on acoustic emission parameters and damage of structural steels},
journal = {Procedia Structural Integrity},
year = {2020},
volume = {28},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016/j.prostr.2020.11.038},
pages = {2118--2125},
doi = {10.1016/j.prostr.2020.11.038}
}