HYBRID NON-CONTACT GUIDED WAVE TOMOGRAPHY FOR IMAGING OF DEFECTS IN PLATE-LIKE STRUCTURE USING A PROBABILISTIC ALGORITHM

被引：0

作者：

Albiruni, Farabirazy ^{[1
]}

Lee, Jaesun ^{[1
]}

Cho, Younho ^{[1
]}

Lee, Joon-Hyun ^{[1
]}

Ahn, Bong-Young ^{[2
]}

机构：

[1] Pusan Natl Univ, Sch Mech Engn, Pusan 609735, South Korea

[2] Korea Res Inst Stand & Sci, Taejon 305340, South Korea

来源：

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A AND 29B | 2010年 / 1211卷

基金：

新加坡国家研究基金会;

关键词：

Hybrid Non-Contact Ultrasonic; Guided Wave Tomography; Probabilistic Algorithm; Plate-Like Structures; ULTRASONIC TOMOGRAPHY; TRANSDUCTION;

D O I：

10.1063/1.3362471

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A hybrid non-contact testing with laser generated ultrasonic transmitter and an air-coupled transducer is very attractive technique in guided wave inspection. It can be used for online inspection and structural health monitoring (SHM) where contact method using embedded sparse sensors can not be applied such as the case of high temperature application. In this study, a tomography based on probabilistic algorithm was employed in conjunction with the hybrid non-contact method. This present approach can be successfully used for detecting, locating and imaging multi-defect in plates. The probabilistic algorithm is principally based on the use of signal difference coefficient of guided waves acquired for good and faulty conditions. The simplicity of this algorithm makes it suitable to be implemented to non-contact based online inspection scheme.

引用

页码：758 / +

页数：3

共 45 条

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