Efficient use of Lamb modes for detecting defects in large plates

被引：155

作者：

Ghosh, T

Kundu, T ^{[1
]}

Karpur, P

机构：

[1] Univ Arizona, Dept Civil Engn & Engn Mech, Tucson, AZ 85721 USA

[2] Allied Signal Engines, Mat & Proc Engn, Phoenix, AZ 85072 USA

来源：

ULTRASONICS | 1998年 / 36卷 / 07期

关键词：

Lamb wave; plate; defect detection; stress;

D O I：

10.1016/S0041-624X(98)00012-2

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper, Lamb wave propagation in large plates and its use in internal defect detection have been studied. The Lamb modes which are most efficient for detecting different types of internal defects are identified. Stress fields inside the plate for different Lamb modes are computed. From these stress plots one can conclude which Lamb mode should be efficient for detecting which type of material defect. Theoretical predictions are experimentally verified. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：791 / 801

页数：11

共 13 条

[1]

BENSON DM, 1995, REV PROG Q, V14, P187

[2] NONDESTRUCTIVE EVALUATION OF COMPOSITE LAMINATES BY LEAKY LAMB WAVES [J].