Archives of Acoustics, 15, 3-4, pp. 464-476, 1990

Low-cycle fatigue investIgation by acoustIc emission method

J. Siedlaczek
High Pressure Research Center, Polish Academy of Sciences (01-142 Warsaw, Sokołowska 21

S. Pilecki
Institute of Fundamental Technological Research, Polish Academy of Sciences (00-049 Warsaw, Świętokrzyska 21

F. Dušek
Institute of Physical Metallurgy, Czechoslovak Academy of Sciences (616-62 Brno, Ziikova 22
Czech Republic

The results of the measurements of acoustic emission (AB) count rate are presented
during low-cycle fatigue of the variously heat treated 45HNMFA structural steel, which can
be used for the production of high-pressure chambers. The experimental technique is
described briefly. The most important result of this investigation is the occurrence of three
stages of the AB activity during the low-cycle fatigue. These dependencies can be applied in
monitoring of the service life (safe exploitation period) of high-pressure chambers and/or
other studied objects.
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