The Effect of Lamb Wave Interaction with Fatigue Crack in Thin Al Sheet

被引：0
|
作者：
Pavelko, Vitalijs [1 ]
Pavelko, Igors [1 ]
Ozolinsh, Eriks [1 ]
机构：
[1] Lubanas Iela 8-104, LV-1019 Riga, Latvia
来源：
ADVANCES IN FRACTURE AND DAMAGE MECHANICS X | 2012年 / 488-489卷
关键词：
Lamb wave; fatigue crack; interaction;
D O I：
10.4028/www.scientific.net/KEM.488-489.65
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The phenomenon of the Lamb wave interaction with fatigue crack in Al2024-T3 sheet was investigated at cyclic loading. Mentioned effect is associated with the crack open/close that change acoustic impedance of a crack. Analytical simulation of fatigue crack opening using the generalized Dugdale's model of a crack in thin plate shows good accordance between the intensity of ultrasonic signal and a crack opening.
引用
收藏
页码：65 / +
页数：2
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