?

단축키

이전 문서

다음 문서

+ - Up Down Comment Print
?

단축키

이전 문서

다음 문서

+ - Up Down Comment Print

http://www.tandfonline.com/doi/abs/10.1080/09349847.2014.934496

 

Research in Nondestructive Evaluation

Volume 26, Issue 1, 2015

Noncontact Evaluation of Acoustic Nonlinearity of a Laser-Generated Surface Wave in a Plastically Deformed Aluminum Alloy
Original Articles

Noncontact Evaluation of Acoustic Nonlinearity of a Laser-Generated Surface Wave in a Plastically Deformed Aluminum Alloy

DOI:
10.1080/09349847.2014.934496
Sungho Choia, Hogeon Seoa & Kyung-Young Jhangb*

pages 13-22

Abstract

A noncontact method to evaluate the acoustic nonlinearity of surface waves in a plastically deformed aluminum alloy is proposed. Line-arrayed laser beams modulated with slit masks were used for the generation of narrowband surface waves. A laser-ultrasonic detector using a two-wave mixing (TWM) approach was also employed to detect the surface waves. The specimens were deformed by a stroke-controlled tensile tester so as to generate various degrees of tensile deformation. The experimental results showed that the acoustic nonlinearity of the laser-generated surface waves increased according to the level of tensile deformation. This tendency was in good agreement with our previous results obtained using a contact piezoelectric (PZT)-transducer as the receiver. These results imply that our noncontact technique is suitable for the evaluation of acoustic nonlinearity and can be applied to practical damage assessment.


분류 제목 조회 수
International Assessment of Thermal Degradation by Cumulative Variation of Ultrasonic Nonlinear Parameter     16562
International Assessment of Thermal Aging of Aluminum Alloys by Acoustic Nonlinearity Measurement of Surface Acoustic Waves     15835
International Absolute Measurement and Relative Measurement of Ultrasonic Nonlinear Parameter     16374
International Experimental Comparison of Nonlinear Parameters Obtained from Absolute Measurement and Relative Measurement     15281
International Comparison of Ultrasonic Nonlinear Parameters Measured by PZT and LiNbO3 Transducers     14892
International Nanotribological and wetting performance of hierarchical patterns     17055
International Demonstration of Disturbance Propagation and Amplification in Car-Following Situation for Enhancement of Vehicle Platoon System     17861
International Relative Measurement of Acoustic Nonlinear Parameters and Comparison of Sensitivity to Thermal Aging     17586
International Non-contact Measurement of Elastic Modulus by using Laser Ultrasonic     19534
International Relationship between Second- and Third-order Acoustic Nonlinear Parameters in Relative Measurement     17888
International Non-Contact Evaluation of Acoustic Nonlinearity of a Laser-Generated Surface Wave in a Plastically Deformed Aluminum Alloy  image   17057
International Influence of repetitive pulsed laser irradiation on the surface characteristics of an aluminum alloy in the melting regime     18170
International Real-time detection of surface cracks on silicon wafers during laser beam irradiation     18035
Domestic High power CW laser-induced damage of CMOS image sensor     18249
Domestic Measurement of Ultrasonic Nonlinear Parameter by Using Non-Contact Ultrasonic Receiver     18095
Domestic Study on the Nonlinear Electromagnetic Acoustic Resonance Method for the Evaluation of Hidden Damage in a Metallic Material     17859
International Influence of laser beam profiles on the frequency bandwidth of laser-generated surface acoustic waves     17842
International Laser ultrasonic inspection in ablation regime     17328
International Improvement of Crack Sizing Performance by using Nonlinear Ultrasonic Technique     18125
International In-Line Ultrasonic Monitoring for Sediments Stuck on Inner Wall of a Polyvinyl Chloride Pipe     25572
Board Pagination ‹ Prev 1 2 3 4 5 6 7 8 Next ›
/ 8
Designed by hikaru100

나눔글꼴 설치 안내


이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

설치 취소

SketchBook5,스케치북5

SketchBook5,스케치북5

SketchBook5,스케치북5

SketchBook5,스케치북5

ISNDE Laboratory
203-2,Engineering Center Annex
Hanyang University,
222 Wangsimni-ro, Seongdong-gu
Seoul 04763, Korea
04763 서울특별시 성동구 왕십리로 222
한양대학교 공업센터 별관 203-2호
지능계측 및 비파괴평가 연구실
Tel: 02 - 2220 - 4220
Fax: 02 - 2299 - 7207