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Non-destructive testing of the strength of structural materials is currently based on
the correlation between the results of laboratory tests of the strength of standard macro
samples and the strength characteristics of the material in a real object. The heterogeneity of
the strength properties of different zones of the material makes this correlation ambiguous,
introducing uncertainty in the test results. The solution of the problem relates to the necessity
of transition to the micro- and nano- control level that determines the strength, and to the
applying of representative micro structural elements of the material and multipurpose physical
nanoconstants as reference. The principles of selection of these elements and the method of
assessing their strength characteristics are considered. The model proposed in the work has
shown its effectiveness both in laboratory samples and in real industrial facilities.
Keywords: acoustic emission, heterogeneous materials, model of acoustic emission |
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