Experimental analysis of linear and nonlinear ultrasonic scatterings at closed fatigue crack using fixed-voltage fundamental wave amplitude difference with radarlike display - Archive ouverte HAL Access content directly
Journal Articles Japanese Journal of Applied Physics Year : 2021

Experimental analysis of linear and nonlinear ultrasonic scatterings at closed fatigue crack using fixed-voltage fundamental wave amplitude difference with radarlike display

(1) , (1) , (2) , (3) , (1) , (1)
1
2
3

Abstract

Abstract Although the understanding of the nonlinear ultrasonic scattering at closed cracks is essential for the practical application of nonlinear ultrasonic phased array, it has yet to be elucidated because of the lack of experimental techniques. This study proposes fixed-voltage fundamental wave amplitude difference (FAD) with radarlike display. We first describe the principle and imaging algorithm of the proposed method. In order to demonstrate the proposed imaging technique, we formed a closed fatigue crack in an aluminum-alloy specimen. After confirming the imaging capability of confocal fixed-voltage FAD, we examined the linear and nonlinear ultrasonic scatterings depending on incident angles with the radarlike display. As a result, we found that the nonlinear ultrasonic scattering was more sensitive to the incident angle than the linear one. We also interpreted the results with the absolute displacement of the incident wave amplitude. Thus, we demonstrated that fixed-voltage FAD with radarlike display is useful in obtaining physical insights and optimizing inspection conditions.
Not file

Dates and versions

hal-03933073 , version 1 (10-01-2023)

Identifiers

Cite

Yoshikazu Ohara, Taisei Umezaki, Ewen Carcreff, Sylvain Haupert, Toshihiro Tsuji, et al.. Experimental analysis of linear and nonlinear ultrasonic scatterings at closed fatigue crack using fixed-voltage fundamental wave amplitude difference with radarlike display. Japanese Journal of Applied Physics, 2021, 60 (SD), pp.SDDB01. ⟨10.35848/1347-4065/abe2e7⟩. ⟨hal-03933073⟩
0 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More