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

页码：929 / 936

页数：8