Propagation of Ultrasonic Guided Waves in an Acrylic Plate as a Cortical-bone-mimicking Phantom SCIE SCOPUS KCI

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Propagation of Ultrasonic Guided Waves in an Acrylic Plate as a Cortical-bone-mimicking Phantom
Author(s)
Lee, Kang Il; Choi, Bok Kyoung
KIOST Author(s)
Choi, Bok Kyoung(최복경)
Publication Year
2014-12
Abstract
The present study aims to investigate the propagation of ultrasonic guided waves in an acrylic plate as a cortical-bone-mimicking phantom. The velocities of the guided waves in a 5-mm-thick acrylic plate were measured by using the axial transmission technique. A pure A0 Lamb mode could be successfully launched in the 5-mm-thick acrylic plate through a time reversal process of Lamb waves, consistent with the fact that the time reversal process can automatically compensate for the dispersive nature of Lamb waves. The experimental velocities of the slow guided wave (SGW) and the time-reversed Lamb wave were found to be in reasonable agreement with the theoretical group velocity of the A0 Lamb mode, suggesting that both the SGW and the time-reversed Lamb wave excited in the 5-mm-thick acrylic plate correspond to the A0 Lamb mode. These results suggest that the time reversal process of Lamb waves can be usefully applied to noninvasive characterization of long cortical bones.
ISSN
0374-4884
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2663
DOI
10.3938/jkps.65.1858
Bibliographic Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.65, no.11, pp.1858 - 1862, 2014
Publisher
KOREAN PHYSICAL SOC
Subject
LEAKY LAMB WAVES; TIME-REVERSAL; BOVINE TIBIA; FEASIBILITY
Keywords
Osteoporosis; Cortical bone; Ultrasonic guided wave; Lamb wave; Group velocity; Time reversal process
Type
Article
Language
English
Document Type
Article
Publisher
KOREAN PHYSICAL SOC
Related Researcher
Research Interests

Underwater Acoustics,Bubble Acoustics,Marine Defense & Safety,수중음향,기포음향,해양방위·안전

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