Improvement of Crack Sizing Performance by using Nonlinear Ultrasonic Technique
Improvement of crack sizing performance by using nonlinear ultrasonic technique
Abstract
The nonlinear ultrasonic technique (NUT) based on the contact acoustic nonlinearity (CAN) has been considered as a promising method for the closed crack detection. However, most of the previous studies were limited to the modeling of the second-order harmonic wave generation at contacted interfaces and its verification by testing artificially contacted interfaces in the through-transmission method. In this study, we investigated experimentally the contact acoustic nonlinearity at a real crack by using the measurement system constructed in the pitch-catch method that permits the transducers to access the only single side of a test structure. Results showed that the magnitude of the second-order harmonic wave represented the existence of the closed area clearly and that the crack sizing performance was greatly improved by the combination of the linear and nonlinear ultrasonic techniques.
Keywords
Crack sizing Contact interface Contact Acoustic Nonlinearity (CAN) Harmonic wave generationPitch-catch method-
Laser ultrasonic inspection in ablation regime
-
Internal defect detection using laser-generated longitudinal waves in ablation regime
-
Initiation time of near-infrared laser-induced slip on the surface of silicon wafers
-
Influence of slit width on harmonic generation in ultrasonic surface waves excited by masking a laser beam with a line arrayed slit
-
Influence of repetitive pulsed laser irradiation on the surface characteristics of an aluminum alloy in the melting regime
-
Influence of laser beam profiles on the frequency bandwidth of laser-generated surface acoustic waves
-
Indirect Method for Measuring Absolute Acoustic Nonlinearity Parameter Using Surface Acoustic Waves with a Fully Non-Contact Laser-Ultrasonic Technique
-
In-situ and Layer-by-layer Grain Size Estimation of Additively Manufactured Metal Components using Femtosecond Laser Ultrasonic Technique (Submitted)
-
In-Line Ultrasonic Monitoring for Sediments Stuck on Inner Wall of a Polyvinyl Chloride Pipe
-
In situ detection of laser-induced slip initiation on the silicon wafer surface
-
Improvement of Crack Sizing Performance by using Nonlinear Ultrasonic Technique
-
Imaging of Defects in Thin Plate by Scanning of Laser-generated Focused-Lamb Waves
-
Imaging of contact acoustic nonlinearity using synthetic aperture technique
-
Harmonic generation of an obliquely incident ultrasonic wave in solid-solid contact interfaces
-
Harmonic generation of an obliquely incident ultrasonic wave in solid-solid contact interfaces
-
GENERATION OF WAVELENGTH-MATCHED GUIDED WAVE IN TUBE BY ARRAYED LASER BEAM METHOD
-
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)
-
Full-range stress–strain curve estimation of aluminum alloys using machine learning-aided ultrasound
-
Frequency Response of Narrowband Surface Waves Generated by Laser Beams Spatially Modulated with a Line-arrayed Slit Mask
-
Finite element analysis of a low-velocity impact test for glass fiber-reinforced polypropylene composites considering mixed-mode interlaminar fracture toughness