DETECTION OF NEAR-SURFACE AND SURFACE-BREAKING DEFECTS USING ULTRASONIC ARRAYS

被引：8
|
作者：
Velichko, A. [1 ]
Wilcox, P. D. [1 ]
Drinkwater, B. W. [1 ]
机构：
[1] Univ Bristol, Dept Mech Engn, Bristol BS8 1TR, Avon, England
来源：
REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 31A AND 31B | 2012年 / 1430卷
关键词：
Scattering; Finite Elements; Ultrasonic Array; Imaging; ELASTIC-WAVES; HALF-SPACE; DIFFRACTION; SCATTERING;
D O I：
10.1063/1.4716323
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An efficient Finite Element procedure for predicting the complete scattering behavior for an arbitrarily-shaped defect which is located near a free surface in an otherwise homogeneous isotropic half-space is presented. The data provided by this model is then used for simulating an ultrasonic array response for different near-surface and surface-breaking defects. Example results for 2D array (3D defects) are presented and compared with the experiment. Its practical application to the volumetric inspections of thin section is discussed.
引用
收藏
页码：929 / 936
页数：8
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