A study to determine the onset of catastrophic wear of a processing tool by statistical parameters of acoustic emission

Filonenko, Sergii; Stakhova, Anzhelika

doi:10.15587/1729-4061.2019.184959

Cited by 1 publication

(4 citation statements)

References 14 publications

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“…In this case, continuous pulsed AE signals are formed. However, a comparison of the obtained patterns according to "OR rule" and von Mises criterion showed that the rate of increase in the equivalent stress on the CM elements by von Mises criterion is lower than according to the "OR" criterion [24]. In this case, the intensity of the CM cells destruction process by von Mises criterion is less than when using the "OR" criterion.…”

Section: Analysis Of Recent Researchmentioning

confidence: 82%

“…=100000; #=10000. The choice of their magnitudes was considered in [24]. To compare the performed calculations of the destruction onset time with the results of calculations by the "OR" criterion considered in [23].…”

Section: Research Objectives and Resultsmentioning

confidence: 99%

“…However, there was not obtained an expression for the AE signal itself which was caused by a jump of the analyzed functions at the instant of complete destruction of the material. Time dependencies for the cases of the "OR rule" and von Mises criterion were obtained for the number of remaining elements during destruction of the CM and generated AE signal [23][24]. In both cases, it was shown that with the development of destruction process, the time dependencies of changes in the remaining CM cells have a continuous character of decrease until complete destruction.…”

Section: Analysis Of Recent Researchmentioning

confidence: 99%

“…This leads to increase of the destruction process duration by von Mises criterion, which leads to a decrease in the amplitude and duration of the generated AE signal. Time dependencies for the number of remaining elements during the CM destruction and for the generated AE signal were obtained in the form [24]:…”

Section: Analysis Of Recent Researchmentioning

confidence: 99%

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Influence of Loading Speed on Acoustic Emission During Destruction of a Composite by Von Mises Criterion

Filonenko¹,

Stadychenko²

2020

AJMME

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In this study of the composite material's destruction caused by transverse force with the use of von Mises criterion, the simulation outcomes of the composite material's cells destruction process and generated AE signals with increasing the strain rate is considered. The time dependencies of the change in the number of remaining elements and the generated AE signals with increasing the strain rate are obtained. Simulation outcomes of the process of composite cells destruction by von Mises criterion and generated acoustic emission signals with increasing strain rate are presented. It was determined that with increasing strain rate of the composite, there is an increase of decline rate of the strain curve of the remaining cells in time and a decrease in time of the destruction process. It was found that with increasing strain rate of the composite, the amplitude of the generated acoustic emission signal increases while its duration decreases, along with gradual transformation of the acoustic emission signal into a triangular signal. It was determined that with increasing strain rate of the composite, the pattern of change in the maximum amplitude of the generated acoustic emission signals has a linear character of increase, and their duration -nonlinear character of decline.

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Section: Analysis Of Recent Researchmentioning

confidence: 82%

Section: Research Objectives and Resultsmentioning

confidence: 99%

Section: Analysis Of Recent Researchmentioning

confidence: 99%

Section: Analysis Of Recent Researchmentioning

confidence: 99%

See 2 more Smart Citations