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High strain-rate compressive testing of filling materials for inter-penetrating phase composites
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SYSNO ASEP 0509991 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title High strain-rate compressive testing of filling materials for inter-penetrating phase composites Author(s) Doktor, T. (CZ)
Fíla, T. (CZ)
Zlámal, Petr (UTAM-F) RID, SAI, ORCID
Kytýř, Daniel (UTAM-F) SAI, RID, ORCID
Jiroušek, O. (CZ)Number of authors 5 Source Title Acta Polytechnica CTU Proceedings, 25. - Praha : Czech Technical University in Prague, 2019 / Kytýř D. ; Zlámal P. ; Doktor T. - ISBN 978-80-01-06670-6 Pages /2019/, s. 21-24 Number of pages 4 s. Publication form Online - E Action Youth Symposium on Experimental Solid Mechanics /17./ Event date 06.06.2019 - 08.06.2019 VEvent location Telč Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords interpenetration phase composite ; SHPB ; impact protection filling materials ; strain-rate sensitivity Subject RIV JI - Composite Materials OECD category Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics R&D Projects EF16_019/0000766 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UTAM-F - RVO:68378297 EID SCOPUS 85078277617 DOI 10.14311/APP.2019.25.0021 Annotation In this study behavior of the selected types of filling material for the inter-penetrating phase composites was tested in compressive loading mode at low and high strain-rates. Three types of the filling material were tested, (i) ordnance gelatin, (ii) low expansion polyurethane foam, and (iii) polyurethane putty. To evaluate their impact energy absorption bulk samples of the selected materials were tested in compression loading mode at strain-rates 1000 s−1 to 4000 s−1. The high strain-rate compressive loading was provided by Split Hopkinson Pressure Bar (SHPB) which was equipped with PMMA bars to enable testing of cellular materials with low mechanical impedance. Based on the comparative measurement response to compression at both low and high strain-rates was analysed. The results show a significant strain-rate sensitivity of the ordnance gelatin and of the polyurethane putty, while strain-rate effect in the polyurethane foam was not observed. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2020 Electronic address https://ojs.cvut.cz/ojs/index.php/APP/article/view/6015
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