Title: Behavior of high-density polyethylene at high strain rates
Authors: Trnka, Jan
Nezbedová, Eva
Kober, Jan
Buchar, Jaroslav
Citation: Applied and Computational Mechanics. 2021, vol. 15, no. 1, p. 69-84.
Issue Date: 2021
Publisher: University of West Bohemia
Document type: článek
URI: http://hdl.handle.net/11025/44870
ISSN: 1802-680X (Print)
2336-1182 (Online)
Keywords: dynamické načítání;rychlost deformace;Split-Hopkinsonova tlaková tyč;přímý Hopkinsonův test;viskoelasticity
Keywords in different language: dynamic loading;strain rate;split Hopkinson pressure bar;direct Hopkinson test;viscoelasticity
Abstract in different language: The Hopkinson split pressure bar (HSPB) was used for the testing of three polymers at strain rates between 102 to 103 s-1. Higher strain rates were achieved using the direct Hopkinson test. Experimental data were evaluated in time as well as in the frequency domain. A more detailed analysis in the frequency domain showed that the description of tested polymers can be described in the framework of the linear viscoelasticity. The use of the direct Hopkinson test showed the occurrence of a permanent strain.
Rights: © University of West Bohemia
Appears in Collections:Volume 15, number 1 (2021)
Volume 15, number 1 (2021)

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