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
收藏
页码：464 / 468
页数：5
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