Numerical simulation and experiment for inspection of corner-shaped components using ultrasonic phased array

被引：40
|
作者：
Xu, Na [1 ]
Zhou, Zhenggan [2 ]
机构：
[1] Beijing Inst Aeronaut Mat, Aviat Ind Corp China, Beijing 100095, Peoples R China
[2] Beihang Univ, Sch Mech Engn & Automat, Beijing 100191, Peoples R China
来源：
NDT & E INTERNATIONAL | 2014年 / 63卷
关键词：
Phased array; Ultrasonic testing; Corner-shaped; Finite-difference time domain; Simulation; STABILITY; MEDIA;
D O I：
10.1016/j.ndteint.2014.01.005
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper proposes an effective method for corner-shaped components inspection using ultrasonic phased array. We first improved the finite-difference time domain (FDTD) method by way of averaging properly the different ultrasonic parameters of media on the both sides of interface to simulate ultrasonic wave propagation in dual-layered media. Then, an inspection method for corner-shaped structures using ultrasonic phased array and an iterative calculation approach of delay time based on Snell's law for complicated geometries were put forward and described in detail. Experiments on an aluminum alloy 2014 sample were conducted to validate the modeling results and the inspection method. Finally, practical application was carried out to image and size the defect in carbon fiber reinforced plastic (CFRP) corner-shaped specimen, yielding experiment results that are in good quantitative agreement with the true values. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：28 / 34
页数：7
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