Monitoring of acoustic emission activity using thin wafer piezoelectric sensors

2014 ◽  
Author(s):  
Blaine Trujillo ◽  
Andrei N. Zagrai ◽  
Daniel Meisner ◽  
Sepand Momeni
Keyword(s):  
Acoustic Emission ◽  
Piezoelectric Sensors ◽  
Acoustic Emission Activity ◽  
Emission Activity

Evaluation of Crack Formation in Concrete and Basalt Specimens under Cyclic Uniaxial Load Using Acoustic Emission and Computed X-Ray Tomography

2016 ◽  
Vol 722 ◽  
pp. 247-253 ◽  
Author(s):  
Alexander N. Kravcov ◽  
Pavel Svoboda ◽  
Adam Konvalinka ◽  
Elena B. Cherepetskaya ◽  
Ivan E. Sas ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Main Crack ◽  
Crack Formation ◽  
Acoustic Emission Activity ◽  
X Ray ◽  
Stress Memory ◽  
Uniaxial Load ◽  
Computed Microtomography ◽  
Emission Activity ◽  
X Ray Computed

The paper discusses the use of acoustic emission, stress-memory effect, and X-ray computed microtomography (μST) to detect the onset of destruction of specimens of concrete and basalt which are widely used in construction. It is shown that the most informative parameter is acoustic emission activity based on which the onset of the formation of a main crack can be identified. The geometry of the crack is determined using computed X-ray tomography.

scholarly journals Acoustic Emission Activity for Characterizing Fracture of Marble under Bending

2015 ◽  
Vol 6 (1) ◽  
pp. 6 ◽  
Author(s):  
Eleni Tsangouri ◽  
Dimitrios Aggelis ◽  
Theodore Matikas ◽  
Anastasios Mpalaskas
Keyword(s):  
Acoustic Emission ◽  
Acoustic Emission Activity ◽  
Emission Activity
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