Acoustic emission estimation of crack formation in aluminium alloys

被引：21
|
作者：
Andreykiv, Olexander [1 ]
Skalsky, Valentyn [1 ]
Serhiyenko, Oleh [1 ]
Rudavskyy, Denys [1 ]
机构：
[1] Natl Acad Sci Ukraine, Karpenko Physicomech Inst, UA-79601 Lvov, Ukraine
来源：
ENGINEERING FRACTURE MECHANICS | 2010年 / 77卷 / 05期
关键词：
Penny-shaped crack; Acoustic emission; Aluminium alloy;
D O I：
10.1016/j.engfracmech.2010.01.009
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In the paper a problem on the radiation of waves of acoustic emission (AE) during formation of penny-shaped crack in aluminium alloy elastic body under tensile and twisting loading is considered. By the method of integral transforms, the problem is reduced to the solving of Fredholm integral equation of the second kind. The dependences of component of displacement vector on time and distance to the viewpoint as well as amplitudes of the AE signals on the area of the crack and its spatial orientation are obtained. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：759 / 767
页数：9
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