METHOD OF ACOUSTIC-EMISSION MONITORING OF DEGRADATION OF MATERIAL STRUCTURE AND PREDICTING RESIDUAL PRODUCT STRENGTH Russian patent published in 2019 - IPC G01N29/14 

FIELD: physics.

SUBSTANCE: use: to monitor degree of degradation of material structure and to predict residual strength of product using acoustic emission diagnostics. Summary of invention consists in the fact that in process of acoustic-emission monitoring of article during breaking of registered acoustic-emission pulses into clusters of lower, average and upper energy level by value of relative energy is calculated not only accumulation of weight content of localized pulses, reflecting micro, meso and macro-structural processes of material destruction, but also the number of recorded location pulses per unit time (recording frequency) in clusters H, C, B, which are used together with weight parameters to assess degree of degradation of structure of material and forecast of residual strength and loss of bearing capacity by article.

EFFECT: possibility of improving reliability and accuracy of assessment of degree of degradation of structure of article material and forecast of its residual strength without involving other methods of technical diagnostics and nondestructive testing.

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