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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.


  • Full-range stress–strain curve estimation of aluminum alloys using machine learning-aided ultrasound

  • Nondestructive Inspection of Directed Energy Deposited Components Using Scanning Acoustic Microscopy with Metalworking Fluids

  • Nondestructive Inspection of Cylindrical Components Repaired Via Directed Energy Deposition Using Scanning Acoustic Microscopy with Metal Lubricants

  • Plastic properties estimation of aluminum alloys using machine learning of ultrasonic and eddy current data

  • Calibration method using a narrowband signal for measurement of the acoustic nonlinearity parameter

  • Comparisons of second- and third-order ultrasonic nonlinearity parameters measured using through-transmission and pulse-echo methods

  • In-situ and Layer-by-layer Grain Size Estimation of Additively Manufactured Metal Components using Femtosecond Laser Ultrasonic Technique (Submitted)

  • Microstructural Characterization of Additively Manufactured Metal Components Using Linear and Nonlinear Ultrasonic Techniques

  • Tensile properties evaluation of additively manufactured Ti-6Al-4V/yttria-stabilized zirconia composite using absolute nonlinear-ultrasonic technique (Submitted)

  • Generation and Measurement of Gigahertz Ultrasonic Waves in Additively Manufactured Thin Metal Components using Femtosecond Laser and Application to In-situ Grain size Monitoring (Submitted)

  • Nondestructive evaluation of micro-oxide inclusions in additively manufactured metal parts using nonlinear ultrasonic technique

  • Mechanical properties estimation of additively manufactured metal components using femtosecond laser ultrasonics and laser polishing

  • Experimental Verification of Contact Acoustic Nonlinearity at Rough Contact Interfaces

  • Compensation of a Second Harmonic Wave Included in an Incident Ultrasonic Wave for the Precise Measurement of the Acoustic Nonlinearity Parameter

  • Measurement of Absolute Acoustic Nonlinearity Parameter Using Laser-Ultrasonic Detection

  • Rapid Molecular Diagnostic Sensor Based on Ball-Lensed Optical Fibers

  • Porosity Evaluation of Additively Manufactured Components Using Deep Learning‑based Ultrasonic Nondestructive Testing (Editor's pick)

  • Deep Learning-Based Ultrasonic Testing to Evaluate the Porosity of Additively Manufactured Parts with Rough Surfaces

  • Analysis of the influence of surface roughness on measurement of ultrasonic nonlinearity parameter using contact-type transducer

  • Indirect Method for Measuring Absolute Acoustic Nonlinearity Parameter Using Surface Acoustic Waves with a Fully Non-Contact Laser-Ultrasonic Technique

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