Three dimensional evaluation of aluminum plates with wall-thinning by full-field pulse-echo laser ultrasound

被引：50

作者：

Hong, Seung-Chan ^{[1
]}

Abetew, Ayalsew-Dagnew ^{[1
]}

Lee, Jung-Ryul ^{[1
]}

Ihn, Jeong-Beom ^{[2
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Aerosp Engn, 291 Daehak Ro, Daejeon 34141, South Korea

[2] Boeing Res & Technol, Struct Technol, Seattle, WA USA

来源：

OPTICS AND LASERS IN ENGINEERING | 2017年 / 99卷

基金：

新加坡国家研究基金会;

关键词：

Q-switched laser; Laser Doppler vibrometer; Full-field pulse; echo ultrasonic wave propagation imaging; Laser ultrasonic C-scan; Wall-thinning damage;

D O I：

10.1016/j.optlaseng.2016.08.010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a full-field pulse-echo laser ultrasonic wave propagation imager (FF-PE-UPI) for the evaluation of structural defects. The FF-PE-UPI consists of a Q-switched laser for the generation of thermoelastic waves, a laser Doppler vibrometer (LDV) for sensing, and a two-axis translation stage for raster scanning of the combined generation and sensing laser beams. A-scan, B-scan, and C-scan data representations are used for the evaluation of structural defects. Three specimens were tested: a 4-mm aluminum plate with an area of 50% thickness reduction, a 6-mm aluminum plate with an area of 25% thickness reduction, and an 8-mm aluminum plate with engraved letters. The damages on the tested specimens were successfully visualized.

引用

页码：58 / 65

页数：8

共 16 条

[1]

Bae D. Y., 2016, AEROSP SCI TECHNOL, V54, P114, DOI DOI 10.1016/J.AST.2016.04.014

[2] Optical remote measurement of ultrasound [J].

Dewhurst, RJ ;

Shan, Q .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1999, 10 (11) :R139-R168

[3] Structural imaging through local wavenumber estimation of guided waves [J].

Flynn, Eric B. ;

Chong, See Yenn ;

Jarmer, Gregory J. ;

Lee, Jung-Ryul .

NDT & E INTERNATIONAL, 2013, 59 :1-10

[4]

HUTCHINS DA, 1988, PHYS ACOUSTICS, V18, P21

[5]

Klein M, 2005, J TUBE PIPE

[6] Spar disbond visualization in in-service composite UAV with ultrasonic propagation imager [J].

Lee, Jung-Ryul ;

Cho, Chang Min ;

Park, Chan Yik ;

Chung Thanh Truong ;

Shin, Hye Jin ;

Jeong, Hyomi ;

Flynn, Eric B. .

AEROSPACE SCIENCE AND TECHNOLOGY, 2015, 45 :180-185

[7] Frequency-wavenumber domain analysis of guided wavefields [J].

Michaels, Thomas E. ;

Michaels, Jennifer E. ;

Ruzzene, Massimo .

ULTRASONICS, 2011, 51 (04) :452-466

[8]

Pavlakovic B, 1997, REV PROG Q, V16, P185

[9]

PELIVANOV I, 2015, J IEEE T ULTRASON FE, V62, P1696

[10] A new fiber-optic non-contact compact laser-ultrasound scanner for fast non-destructive testing and evaluation of aircraft composites [J].

Pelivanov, Ivan ;

Buma, Takashi ;

Xia, Jinjun ;

Wei, Chen-Wei ;

O'Donnell, Matthew .

JOURNAL OF APPLIED PHYSICS, 2014, 115 (11)

← 1 2 →