publication . Article . 2021

Оценка неравномерности упругих свойств листов из закрытоячеистых пенополиолефинов акустическим методом

Bogdan, O. P.; Zlobin, D. V.; Muraveva, O. V.; Molin, S. M.; Platunov, A. V.;
Open Access
  • Published: 19 Mar 2021 Journal: Devices and Methods of Measurements, volume 12, pages 58-66 (issn: 2220-9506, eissn: 2414-0473, Copyright policy)
  • Publisher: Belarusian National Technical University
  • Country: Belarus
The widespread use of polyolefin foams in strategically important industries is due to their high thermal, sound and vibration insulation properties. The aim of the work was to evaluate the non-uniformity of elastic properties over the area of sheets of polyolefin foams of various types using the acoustic non-contact shadow amplitude method of testing and confirmation by the structural analysis method.The article presents the developed installation and a new method of non-contact acoustic testing of sheets made of closed-cell polyolefin foams based on recording the amplitude of the pulse that passed through the sheet and allowing to assess to the unevenness of i...
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