IDENTIFICATION OF STRUCTURAL DEFECTS OF METAL COMPOSITE CASTINGS WITH THE USE OF ELASTIC WAVES

被引：7
作者：
Bejger, A. [1 ]
Gawdzinska, K. [1 ]
机构：
[1] Maritime Univ Szczecin, PL-70205 Szczecin, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2011年 / 56卷 / 01期
关键词：
acoustic emission; wavelet transform; quality of composite castings;
D O I：
10.2478/v10172-011-0014-z
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The method of elastic wave propagation was applied to detect defects in composite castings (ingots). If a defect occurs, which is detected by the radiography, elastic wave propagation changes locally, i.e. causes disturbance of elastic wave propagation. Methods of signal analysis based on wavelet decomposition were used. Calculations related with wavelet analysis were made in the MATLAB environment using standard Wavelet Toolbox functions.
引用
收藏
页码：129 / 133
页数：5
相关论文
共 12 条
[1]  
BATKO W, 2002, USE WAVELETS THEORY
[2]  
BEJGER A, 2005, POSSIBILITY USE TIME, P5
[3]  
BEJGER A, 2003, 3 INT SCI TECHN C EX, P53
[4]   Characterisation of anisotropic elastic constants of continuous alumina fibre reinforced aluminium matrix composite processed by medium pressure infiltration [J].
Ducret, D ;
El Guerjouma, R ;
Guy, P ;
R'Mili, M ;
Baboux, JC ;
Merle, P .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2000, 31 (01) :45-55
[5]  
GAWDZINSKA K, 2008, USE ACOUSTIC EMISSIO
[6]  
Holroyd T., 2000, MACHINE SYSTEMS COND
[7]  
KOZAK M, 2008, THESIS MARITIME U SZ
[8]  
Nguyen T., 1996, WAVELETS FILTER BANK
[9]  
Ranachowski Z., 1997, METHODS MEASUREMENT
[10]  
SKUBIS J, 1993, ACOUSTIC EMISSION RE, P5
12