{"id":2269,"date":"2021-01-18T19:42:54","date_gmt":"2021-01-18T17:42:54","guid":{"rendered":"http:\/\/journals.khnu.km.ua\/vestnik\/?p=2269"},"modified":"2021-02-16T13:50:12","modified_gmt":"2021-02-16T11:50:12","slug":"%d0%bd%d0%b5%d1%80%d1%83%d0%b9%d0%bd%d1%96%d0%b2%d0%bd%d0%b0-%d0%b4%d1%96%d0%b0%d0%b3%d0%bd%d0%be%d1%81%d1%82%d0%b8%d0%ba%d0%b0-%d1%82%d0%b5%d1%85%d0%bd%d1%96%d1%87%d0%bd%d0%be%d0%b3%d0%be-%d1%81","status":"publish","type":"post","link":"https:\/\/journals.khnu.km.ua\/vestnik\/?p=2269","title":{"rendered":"\u041d\u0435\u0440\u0443\u0439\u043d\u0456\u0432\u043d\u0430 \u0434\u0456\u0430\u0433\u043d\u043e\u0441\u0442\u0438\u043a\u0430 \u0442\u0435\u0445\u043d\u0456\u0447\u043d\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0443 \u043c\u0430\u0442\u0435\u0440\u0456\u0430\u043b\u0456\u0432 \u0435\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u043e\u0457 \u0442\u0435\u0445\u043d\u0456\u043a\u0438 \u043c\u0435\u0442\u043e\u0434\u043e\u043c \u0430\u043a\u0443\u0441\u0442\u0438\u0447\u043d\u043e\u0457 \u0435\u043c\u0456\u0441\u0456\u0457"},"content":{"rendered":"

<\/p>\n

\u041d\u0415\u0420\u0423\u0419\u041d\u0406\u0412\u041d\u0410 \u0414\u0406\u0410\u0413\u041d\u041e\u0421\u0422\u0418\u041a\u0410 \u0422\u0415\u0425\u041d\u0406\u0427\u041d\u041e\u0413\u041e \u0421\u0422\u0410\u041d\u0423 \u041c\u0410\u0422\u0415\u0420\u0406\u0410\u041b\u0406\u0412 \u0415\u041b\u0415\u041a\u0422\u0420\u041e\u041d\u041d\u041e\u0407 \u0422\u0415\u0425\u041d\u0406\u041a\u0418 \u041c\u0415\u0422\u041e\u0414\u041e\u041c \u0410\u041a\u0423\u0421\u0422\u0418\u0427\u041d\u041e\u0407 \u0415\u041c\u0406\u0421\u0406\u0407<\/p>\n

NON-DESTRUCTIVE TECHNICAL DIAGNOSTICS OF ELECTRONIC MATERIALS BY METHOD OF ACOUSTIC EMISSION<\/p>\n

\n

<\/a>
\n\u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 94-99. \u041d\u043e\u043c\u0435\u0440: \u21164, 2020 (287)<\/strong><\/p>\n

\u0410\u0432\u0442\u043e\u0440\u0438:<\/strong>
\n\u0406.\u0406. \u041a\u041e\u0412\u0422\u0423\u041d, \u0421.\u0410. \u041f\u0415\u0422\u0420\u0410\u0429\u0423\u041a, \u042e.\u041c. \u0411\u041e\u0419\u041a\u041e, \u0411.\u041e. \u041f\u041e\u0413\u041e\u0420\u0406\u041b\u0418\u0419
\n\u0425\u043c\u0435\u043b\u044c\u043d\u0438\u0446\u044c\u043a\u0438\u0439 \u043d\u0430\u0446\u0456\u043e\u043d\u0430\u043b\u044c\u043d\u0438\u0439 \u0443\u043d\u0456\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442<\/p>\n

I.I. KOVTUN, S.A. PETRASCHUK, J.M. BOIKO, B.O. POGORILIY
\nKhmelnytskyi National University<\/p>\n

 
\nDOI:<\/strong> https:\/\/www.doi.org\/10.31891\/2307-5732-2020-287-4-94-99<\/a>
\n <\/p>\n

\u0420\u0435\u0446\u0435\u043d\u0437\u0456\u044f\/Peer review :<\/strong> 27.09.2020 \u0440.
\n\u041d\u0430\u0434\u0440\u0443\u043a\u043e\u0432\u0430\u043d\u0430\/Printed : <\/strong>04.11.2020 \u0440.<\/p>\n

 <\/p>\n

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\n\u041a\u043b\u044e\u0447\u043e\u0432\u0456 \u0441\u043b\u043e\u0432\u0430:<\/strong> \u0430\u043a\u0443\u0441\u0442\u0438\u0447\u043d\u0430 \u0435\u043c\u0456\u0441\u0456\u044f, \u043c\u0456\u0446\u043d\u0456\u0441\u0442\u044c, \u043d\u0435\u0440\u0443\u0439\u043d\u0456\u0432\u043d\u0430 \u0434\u0456\u0430\u0433\u043d\u043e\u0441\u0442\u0438\u043a\u0430, \u0440\u043e\u0437\u0442\u044f\u0433, \u0437\u0433\u0438\u043d<\/p>\n

 <\/p>\n

\u0420\u043e\u0437\u0448\u0438\u0440\u0435\u043d\u0430 \u0430\u043d\u043e\u0442\u0430\u0446\u0456\u044f \u0430\u043d\u0433\u043b\u0456\u0439\u0441\u044c\u043a\u043e\u044e \u043c\u043e\u0432\u043e\u044e<\/strong><\/p>\n

\u00a0 \u00a0 \u00a0Real materials always have numerous variations from a perfect structure associated with instability of manufacturing technology, which entails strength instability of produced parts what creates a range of problems, especially in manufacturing bearing structural components in electronics and other branches of industry. Standard laboratory tests of material samples or full-scale products conducted by simple types of loading – tension and bending demonstrated possibility to reveal relationships between parameters of acoustic emission, stress in the elastic range of stress and destructive stress and use them for non-destructive diagnostics of strength. The objects of the research are flat samples of steel St3 at original production state and sections of components being load-bearing structures made of non-metallic material – fiberglass. Based on the obtained relationships of acoustic emission parameters, stress in the elastic range of stress and destructive stress, the following methods have been developed for non-destructive testing, diagnostics and strength prediction during non-destructive testing by static load. Loading under proportionality limit produces acoustic emission parameters exceeding the control level, the sample (part) is recognized as defective and its ultimate strength is determined using the prediction coefficient. Linear location of acoustic emission sources according to the maximum total count gives a linear coordinate, along the length of the sample, which locates the future destruction. Method for non-destructive diagnostics and strength prediction of fiberglass samples used in manufacturing structural components in electronic engineering has been designed for non-destructive testing by static bending load. Parameters that estimate the ultimate strength of samples are amplitude and activity of acoustic emission signals.\u00a0 Parameters of acoustic emission signals exceeding the reference level indicate of defective sample, which is then rejected, otherwise its strength complies with standard.<\/p>\n

Keywords:<\/strong> acoustic emission, strength, non-destructive diagnostics, tension, bend.<\/p>\n

 <\/p>\n

References<\/strong><\/p>\n

    \n
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