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THE APPLICATION OF COMPLEX INFORMATION PARAMETERS TO ACOUSTIC EMISSION FOR DIAGNOSTICS DURING THE STAGES OF FRACTURE

 

作者: V. V. SHIP,   G. B. MURAVIN,   I. S. SAMOILOVA,   E. G. DOROKHOVA,  

 

期刊: Nondestructive Testing and Evaluation  （Taylor Available online 1997）
卷期: Volume 13, issue 2  

页码: 57-71

 

ISSN:1058-9759

 

年代: 1997

 

DOI:10.1080/02780899708953019

 

出版商: Taylor & Francis Group

 

关键词: Acoustic Emission;statistical analysis;energy spectrum;scattering ellipses;plastic deformation;welded joint;tube specimen

 

数据来源: Taylor

 

摘要:

The characteristic features of acoustic emission diagnostics of welded joints are given. Methods of deformation identification and fracture stages on the basis of statistical analysis of the average energy and the median frequency of AE signals spectra are considered. The possibility of estimating locality degrees of plastic deformation during the testing of a large-sized tube specimen using statistical parameter - entrophy of the energy spectrum of the AE signals is shown.

 

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