Measuring Overpressure Caused by the Detonation of Explosives in a Horizontal Tube

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00329298" target="_blank" >RIV/68407700:21110/18:00329298 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measuring Overpressure Caused by the Detonation of Explosives in a Horizontal Tube

Popis výsledku v původním jazyce

The question of mechanical and thermal behavior of the solid phase arises in connection with the design of structural materials of underground structures due to shock waves caused by an explosion positioned in the closed space. The stress induced by the interaction of the shock waves can be initiated by terrorist attacks, vehicle-borne improvised explosive device (VBIED) including gas explosion, car accident, etc. Explosion induces a set of waves occurring in the adjacent environment. If this environment is the air, an airborne shock wave formation is developed, which is a specific type of compression waves characterized by a rapid rise to maximum overpressure, followed by combination of a higher pressure and attenuation, aiming in the limit to the level of the current atmospheric pressure. The effect of detonation in an open space is significantly different from that of the explosion in semi-enclosed and closed spaces. In the case of detonation positioned inside of reflective surfaces, this pressure profile is considerably complicated as there are reflections and shock wave interactions. Sometimes, the resulting pressure versus time relationship includes several consecutive pressure peaks, caused by aftershocks, with the highest overpressure not being achieved by the first wave.

Název v anglickém jazyce

Measuring Overpressure Caused by the Detonation of Explosives in a Horizontal Tube

Popis výsledku anglicky

The question of mechanical and thermal behavior of the solid phase arises in connection with the design of structural materials of underground structures due to shock waves caused by an explosion positioned in the closed space. The stress induced by the interaction of the shock waves can be initiated by terrorist attacks, vehicle-borne improvised explosive device (VBIED) including gas explosion, car accident, etc. Explosion induces a set of waves occurring in the adjacent environment. If this environment is the air, an airborne shock wave formation is developed, which is a specific type of compression waves characterized by a rapid rise to maximum overpressure, followed by combination of a higher pressure and attenuation, aiming in the limit to the level of the current atmospheric pressure. The effect of detonation in an open space is significantly different from that of the explosion in semi-enclosed and closed spaces. In the case of detonation positioned inside of reflective surfaces, this pressure profile is considerably complicated as there are reflections and shock wave interactions. Sometimes, the resulting pressure versus time relationship includes several consecutive pressure peaks, caused by aftershocks, with the highest overpressure not being achieved by the first wave.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA17-04204S" target="_blank" >GA17-04204S: Analýza vlivu explozí v uzavřených a polouzavřených prostorách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Design, Experiment and Analysis of Protective Structures - Proceedings of the 5th International Conference on Protective Structures

ISBN

978-83-89333-71-1

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

10-17

Název nakladatele

Poznan University of Technology

Místo vydání

Poznaň

Místo konání akce

Poznan

Datum konání akce

19. 8. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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