A new technique for measuring the acoustic nonlinearity of materials using Rayleigh waves

被引：102

作者：

Shui, Guoshuang ^{[2
]}

Kim, Jin-Yeon ^{[1
]}

Qu, Jianmin ^{[3
]}

Wang, Yue-Sheng ^{[2
]}

Jacobs, Laurence J. ^{[1
,3
]}

机构：

[1] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA

[2] Beijing Jiaotong Univ, Inst Engn Mech, Beijing 100044, Peoples R China

[3] Georgia Inst Technol, GW Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

来源：

NDT & E INTERNATIONAL | 2008年 / 41卷 / 05期

基金：

美国国家科学基金会;

关键词：

nonlinear ultrasonics; Rayleigh waves; acoustic nonlinearity parameter;

D O I：

10.1016/j.ndteint.2008.01.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This note presents a procedure to generate nonlinear Rayleigh surface waves without having to drive the transmitting piezoelectric transducer at high voltages; driving at low voltages limits the excitation of the intrinsic nonlinearity of the piezoelectric transducer element, and enables an efficient measurement procedure to isolate inherent material nonlinearity. The capabilities of this proposed technique are demonstrated by measuring the material nonlinearity of aluminum alloy 2024 and 6061 plates with Rayleigh surface waves. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：326 / 329

页数：4

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