On-line damage detection on a wing panel using transmission of multisine ultrasonic waves

被引：19

作者：

Harri, Kristof ^{[1
]}

Guillaume, Patrick ^{[2
]}

Vanlanduit, Steve ^{[2
]}

机构：

[1] Royal Mil Sch, Dept Mech, B-1000 Brussels, Belgium

[2] Vrije Univ Brussels, Dept Mech Engn, B-1050 Brussels, Belgium

来源：

NDT & E INTERNATIONAL | 2008年 / 41卷 / 04期

关键词：

on-line damage detection; multisine; ultrasonic wave;

D O I：

10.1016/j.ndteint.2007.10.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fatigue damage of materials is an important problem that causes a lot of failures in mechanical systems. It is very important to detect this fatigue as early as possible. Nowadays, most of the nondestructive testing methods are off-line: the inspection is carried out periodically and in some cases the device has to be dismounted. So we risk to exceed, for example, the critical length of a crack. In this article. an on-line method based on the variation in transmission of a multisine ultrasonic wave during opening and closing of a surface crack is developed. As a validation experiment, a propagation fatigue crack in a sinusoidally loaded wing panel is considered. It will be shown that the on-line method is very sensitive to crack propagation. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：312 / 317

页数：6