文献类型：期刊文献

英文题名：Assessment of accumulated damage in circular tubes using nonlinear circumferential guided wave approach: A feasibility study

作者：Deng, Mingxi[1];Gao, Guangjian[1];Xiang, Yanxun[2];Li, Mingliang[1]

机构：[1]Logist Engn Univ, Dept Phys, Chongqing 401331, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：75

起止页码：209

外文期刊名：ULTRASONICS

收录：;EI(收录号：20165203172183);WOS:【SCI-EXPANDED(收录号:WOS:000392771700024)】；

基金：This work was supported by the National Natural Science Foundation of China under Grant Nos. 11474361, 11474093 and 11274388.

语种：英文

外文关键词：Circumferential guided wave (CGW); Second-harmonic generation (SHG); Accumulated damage assessment; Circular tube

摘要：The feasibility of using the nonlinear effect of primary Circumferential Guided Wave (CGW) propagation for assessing accumulated damage in circular tubes has been investigated. For a given circular tube, an appropriate mode pair of fundamental and double frequency CGWs is chosen to enable that the second harmonic of the primary wave mode can accumulate along the circumferential direction. After the given circular tube is subjected to compression-compression repeated loading for different numbers of loading cycles, the corresponding ultrasonic measurements are conducted. It is found that there is a direct correlation between the acoustic nonlinearity parameter measured with CGWs propagating through one full circumference and the level of accumulated damage in the circular tube. The experimental result obtained validates the feasibility for quantitative assessment of the accumulated damage in circular tubes using the effect of second-harmonic generation by CGW propagation. (C) 2016 Elsevier B.V. All rights reserved.