Behavior of high-density polyethylene at high strain rates

0546641 - ÚT 2022 RIV CZ eng J - Článek v odborném periodiku
Trnka, Jan - Nezbedová, E. - Kober, Jan - Buchar, Jaroslav
Behavior of high-density polyethylene at high strain rates.
Applied and Computational Mechanics. Roč. 15, č. 1 (2021), s. 69-84. ISSN 1802-680X
Grant CEP: GA MŠMT(CZ) EF15_003/0000493
Klíčová slova: dynamic loading * strain rate * split Hopkinson pressure bar * direct Hopkinson test * viscoelasticity
Obor OECD: Materials engineering
Způsob publikování: Open access
https://www.kme.zcu.cz/acm/acm/article/view/680

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.
Trvalý link: http://hdl.handle.net/11104/0327463