ACOUSTIC EMISSION MONITORING OF 1 TO 5 SCALED PWR VESSEL DURING MECHANICAL FATIGUE UP TO FAILURE
In the framework of an European project devoted to the development of diagnostic techniques for pressure component residual lifetime evaluation, a mechanical fatigue test was carried out on 1:5 PWR reduced scale vessel containing fabrication defects. The vessel was monitored by AE during the whole test up to the vessel failure. For continuous monitoring an AE system, developed by CISE ENEL named AEDOS (Acoustic Emission Data Overlooking System) was used. For some significant sources, the main characteristics (amplitude, duration, rise time, event rate) are discussed. For the same sources the correlation among AE activity, fatigue cycle number, pressure value and its derivative are considered in order to identify and discriminate the emissions due to friction of the crack surfaces from the ones due to real crack growth.
Bibliographic Reference: 8TH INTERNATIONAL ACOUSTIC EMISSION SYMPOSIUM, TOKYO (JAPAN), OCT. 21-24, 1986 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 33050 ORA
Availability: Can be ordered online
Record Number: 1989125026700 / Last updated on: 1987-03-01
Available languages: en