ACOUSTIC-EMISSION SOURCE LOCATION ON A CYLINDRICAL SURFACE

被引：23

作者：

BARAT, P ^{[1
]}

KALYANASUNDARAM, P ^{[1
]}

RAJ, B ^{[1
]}

机构：

[1] INDIRA GANDHI CTR ATOM RES, DIV PIE & NDT DEV, KALPAKKAM 603102, TAMIL NADU, INDIA

来源：

NDT & E INTERNATIONAL | 1993年 / 26卷 / 06期

关键词：

ACOUSTIC EMISSION; CYLINDRICAL SURFACES; GEODESICS;

D O I：

10.1016/0963-8695(93)90004-E

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Acoustic emission (AE) is a stress wave, generated in a structural material when it is stimulated by perturbations. One of the important features of this technique is to detect the location of the AE source in the structure from the differences in the times of arrival of stress waves at several sensors placed on it. A generalized mathematical formalism for the evaluation of the path travelled by an acoustic wave on the surface of a structure, on the concept of geodesics, is presented. Based on this concept, a mathematical method is developed for the calculation of the coordinates of an AE source on a cylindrical surface by three AE sensors. This concept has not been attempted analytically so far, to our knowledge.

引用

页码：295 / 297

页数：3