Calculation of acoustic channel at acoustic-emission testing of steel vertical vessels bottoms

被引：0
|
作者：
Nedzvetskaya, O.V. [1 ]
Budenkov, G.A. [1 ]
Sokolkin, A.V. [1 ]
Ievlev, I.Yu. [1 ]
机构：
[1] IzhGTU, Izhevsk, Russia
来源：
Defektoskopiya | 2003年 / 10期
关键词：
Acoustic emissions - Acoustic wave propagation - Energy dissipation - Steel - Tanks (containers);
D O I：
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中图分类号：
学科分类号：
摘要：
The acoustic channel calculation was carried out for possible propagation paths of acoustic emission (AE) waves along a steel vertical vessel (SVV) bottom. The calculation is based on the theoretical and experimental study of the main regularities of Lamb waves propagation in plates. The losses in the acoustic channel were evaluated. A case was considered when the SVV bottom is made of low carbon steel. It is found that at large distances from an AE source, the losses are essential which are caused by Lamb waves divergence in a plate and Lamb waves reflection and transformation at welded joints.
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页码：55 / 66
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