@inproceedings{459bd19124be429fb86ea3298e5c10fd,
title = "RESEARCH ON RESIDUAL STRESS MEASUREMENT BASED ON LASER ULTRASONIC TECHNOLOGY",
abstract = "The ultrasonic method is highly prevalent in residual stress measurement owing to its non-destructive, convenient, and rapid. However, the accuracy of detection is subject to the clamping effects, coupling degrees, and block shapes. This paper introduces a novel laser ultrasonic method for residual stress measurement for aluminum blocks. Specifically, a two-wave mixing interferometer is utilized to detect Rayleigh wave generated by Nd:YAG laser. After data acquisition, a cross-correlation method is applied for the time-of-flight measurement. Further, a tensile testing machine is employed for loading pre-stress to determine the acoustoelastic coefficient. The laser ultrasonic system successfully detects aluminum blocks with varied load stress from 0 MPa to 200 MPa, and the error is less than 10 MPa in comparison to the reference results.",
keywords = "cross-correlation method, laser ultrasonic, residual stress",
author = "Feiming Qian and Pengcheng Hu and Limin Zou and Guangzhen Xing and Longbiao He and Ping Yang",
note = "Publisher Copyright: {\textcopyright} 2023 Proceedings of the International Congress on Sound and Vibration. All rights reserved.; 29th International Congress on Sound and Vibration, ICSV 2023 ; Conference date: 09-07-2023 Through 13-07-2023",
year = "2023",
language = "英语",
series = "Proceedings of the International Congress on Sound and Vibration",
publisher = "Society of Acoustics",
editor = "Eleonora Carletti",
booktitle = "Proceedings of the 29th International Congress on Sound and Vibration, ICSV 2023",
}