Damage to structures due to explosion by discontinuous boundary elements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00335089" target="_blank" >RIV/68407700:21110/19:00335089 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.13168/AGG.2019.0026" target="_blank" >https://doi.org/10.13168/AGG.2019.0026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/AGG.2019.0026" target="_blank" >10.13168/AGG.2019.0026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Damage to structures due to explosion by discontinuous boundary elements

Popis výsledku v původním jazyce

The aim of this paper is to describe a new discrete method for the evaluation of local damage to the bearing system of underground structures. The discrete boundary element method, which serves as a numerical means for detecting local cracks, has been used in the past either as a general means for identifying sites with cracks or for assessing the possibility of bumps occurring in underground mines. Newly, this method is non-trivially extended to the combination with non-linear Navier-Stokes equations, which are solved by finite volumes used to describe the propagation of air movement that creates a subsonic pressure wave in the free space within the structure. Interaction of waves along the boundary of both phases is ensured by interfacial conditions, which correspond to the combination of both numerical means - discontinuous boundary elements and finite volumes. To maintain compatibility of both environments, discretization of both air and solid is based on hexagonal meshes. Two typical examples demonstrate the suitability of the method showing an initial (critical) state of the development of pressure waves and the condition of damage to the structures of underground parking.

Název v anglickém jazyce

Damage to structures due to explosion by discontinuous boundary elements

Popis výsledku anglicky

The aim of this paper is to describe a new discrete method for the evaluation of local damage to the bearing system of underground structures. The discrete boundary element method, which serves as a numerical means for detecting local cracks, has been used in the past either as a general means for identifying sites with cracks or for assessing the possibility of bumps occurring in underground mines. Newly, this method is non-trivially extended to the combination with non-linear Navier-Stokes equations, which are solved by finite volumes used to describe the propagation of air movement that creates a subsonic pressure wave in the free space within the structure. Interaction of waves along the boundary of both phases is ensured by interfacial conditions, which correspond to the combination of both numerical means - discontinuous boundary elements and finite volumes. To maintain compatibility of both environments, discretization of both air and solid is based on hexagonal meshes. Two typical examples demonstrate the suitability of the method showing an initial (critical) state of the development of pressure waves and the condition of damage to the structures of underground parking.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural 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

2019

Kód důvěrnosti údajů

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

Název periodika

Acta Geodynamica et Geomaterialia

ISSN

1214-9705

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

301-314

Kód UT WoS článku

000487824600009

EID výsledku v databázi Scopus

2-s2.0-85073429303