Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

Near field blast loading - Experimental issues in determination of reflected pressure

Autoři: Kučera Jindřich | Cardoso Anastácio Aline | Pospíšil Martin | Šelešovský Jakub | Pelikán Vojtěch | Pachmáň Jiří

Rok: 2016

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Near field blast loading - Experimental issues in determination of reflected pressure	Blast loading of a rigid structure positioned in close vicinity of a detonating explosive charge is a bit more difficult to quantitatively describe compared to the incident blast loading at longer distances. Various phenomena including those related to the detonation processes as well as those related to measuring and acquisition system affect the final measured blast wave properties. In this contribution we summarize our experience with blast wave profile measurement of 50, 75, 250 and 500 g charges of Semtex 1A plastic explosive at 60, 75, 100 and 150 cm standoff distances. Seven different sensors were tested including Kistler (211B), PCB (113B22), Endevco (8511A20) and PVDF foil gauge (5x5 mm). Four sensors were mounted at the same time to steel base plate and charge was set off directly above the sensors. The issues examined included sensor setup, comparison of blast wave profile obtained by various sensors during the same shot, shot to shot variation obtained by the same sensors and an influence of a sensor range.	near field; blast wave in air; reflected pressure; foil gauge