scholarly journals Acoustic emission method for defect detection and identification in carbon steel welded joints

2017 ◽  
Vol 134 ◽  
pp. 28-37 ◽  
Author(s):  
Mohamad G. Droubi ◽  
Nadimul H. Faisal ◽  
Fraser Orr ◽  
John A. Steel ◽  
Mohamed El-Shaib
Keyword(s):  
Acoustic Emission ◽  
Carbon Steel ◽  
Defect Detection ◽  
Welded Joints ◽  
Acoustic Emission Method ◽  
Emission Method ◽  
Detection And Identification

Exploring the erosive wear of X65 carbon steel by acoustic emission method

Wear ◽  
2013 ◽  
Vol 301 (1-2) ◽  
pp. 370-382 ◽  
Author(s):  
Jonathan I. Ukpai ◽  
Richard Barker ◽  
Xinming Hu ◽  
Anne Neville
Keyword(s):  
Acoustic Emission ◽  
Carbon Steel ◽  
Erosive Wear ◽  
Acoustic Emission Method ◽  
Emission Method

scholarly journals Методи діагностування дефектів деталей авіаційних двигунів з композиційних матеріалів

2021 ◽  
pp. 102-109
Author(s):  
Володимир Олександрович Пальчиковський ◽  
Андрій Володимирович Морозов ◽  
Юрій Іванович Торба
Keyword(s):  
Acoustic Emission ◽  
Composite Materials ◽  
Defect Detection ◽  
Static Load ◽  
Thermal Testing ◽  
Local Defect ◽  
Acoustic Emission Method ◽  
Emission Method ◽  
Engine Operation ◽  
X Ray

The key priority in improving the technical and economic performance of gas turbine engines lays in the use of new composite materials. The use of composites in the components of critical load-carrying structures operating under static and dynamic loads during long service lives determines the need to predict the component lives. Also, in order to increase the safety of engine operation and improve the parts manufacturing process, timely defect detection in such structures is of great importance. This article is devoted to the detection of the composite parts defects and damages that occur at different stages of manufacturing and operation. The aim is to investigate the existing methods of non-destructive testing of composite materials, describe their functional concept, and determine the field of their application. The article considers acoustic, thermal, optical, and radiation testing methods. Among the acoustic methods, the phased array method is selected as the most informative and multipurpose. The acoustic emission method is also selected; it will allow real-time monitoring of defect growth during testing. Out of thermal methods, the vibrothermography method was selected as the most advanced among the thermographic sub-methods. It allows using the phenomenon of local defect resonance and thus ensures effective defect detection. Shearography is selected for investigation out of optical methods. The special aspects of the use of X-ray methods are considered through the example of X-ray computed tomography. It is concluded that the approach combining several methods can significantly increase the efficiency of defect detecting and help to assess their criticality. Active thermal testing is well suited for fast scanning of large-sized parts and searching for areas of defect accumulation. In the following, local methods, such as impedance, vibrothermography, or one of the ultrasonic, should be used. To measure deformations under static load, it is a good practice to use shearography. To identify progressive defects under static load, it makes sense to use the acoustic emission method.

Assessment of Conditions for Detecting Corrosion Cracking of Welded Joints by Acoustic Emission Method

2020 ◽  
Vol 56 (7-8) ◽  
pp. 554-562
Author(s):  
I. A. Rastegaev ◽  
I. I. Rastegaeva ◽  
D. L. Merson ◽  
A. V. Chugunov
Keyword(s):  
Acoustic Emission ◽  
Welded Joints ◽  
Corrosion Cracking ◽  
Acoustic Emission Method ◽  
Emission Method
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