New areas of application of acoustic emission method

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Acoustic emission laboratory at the Institute of Machine and Industrial Design of Brno University of Technology is long focused on the use of acoustic emission testing (AT) for diagnostics of damage development in cyclically loaded materials and machine parts. In addition to these relatively traditional applications already however this laboratory workers devote other non-traditional possibilities of using acoustic emission method. In this paper there are presented the first interim results of the project, which is focused on applications of AT in function diagnostic of pneumatic devices. There are compared the signals obtained from the fully functional pneumatic cylinders with signals from cylinders with various types of artificially created damage. The second part briefly presents the first results of the acoustic emission application in other very non-traditional areas. The attention is paid to the usability of AT for identification and localisation of undesirable discharges in gas-insulated conductors for high-voltage substations and for increasing of accuracy and objectivity of the tests for sensitiveness determination of explosives to friction.

Acoustic emission, non-destructive testing, pneumatic cylinder, gas-insulated conductors, explosives

2015-10-12

Czech society for NDT

Brno

978-80-214-5261-9

VIIIth International Workshop NDT in Progress

109–118

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