A correlation analysis and invariant method of acoustic-emission signals in the diagnostics of predestruction states of materials

被引：1

作者：

Builo, S. I. ^{[1
]}

Orlov, S. V. ^{[1
]}

机构：

[1] Southern Fed Univ, Res Inst Mech & Appl Math, Rostov Na Donu, Russia

来源：

RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2014年 / 50卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

acoustic emission; amplitude distribution; amplitude and time invariants; diagnostics; controller; nondestructive testing; correlation coefficient; predestruction state; Poisson process; time-interval distribution;

D O I：

10.1134/S106183091408004X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The results of the application of correlation analysis and invariant method of acoustic-emission (AE) signals during the mechanical loading of 95X18 steel samples are considered. The circuit of a controller that is intended for calculation of statistical characteristics of AE signals is given. A method for diagnostics of predestruction states based on the appearance of stably positive values of the amplitude-correlation coefficient and AE pulse-repetition intervals and deviations of invariant AE relationships from their stable values is proposed.

引用

页码：464 / 468

页数：5

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