Modeling of Shallow Magma Chambers and Caldera Formation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00225108" target="_blank" >RIV/68407700:21110/14:00225108 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.ec-pro.co.jp/ARMS8/pdf_download_login.php" target="_blank" >https://www.ec-pro.co.jp/ARMS8/pdf_download_login.php</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modeling of Shallow Magma Chambers and Caldera Formation

Popis výsledku v původním jazyce

Collapse of shallow magma chamber roofs and formation of collapse calderas are commonly accompanied by ejection of enormous volumes of pyroclastic material to the atmosphere and thus represent severe natural hazards. Numerical analysis can help researchers in understanding the conditions, when these phenomena may occur. The main objective of the present paper is to find a suitable approach to finite element simulation of shallow magma chambers and roof collapse. The model has to capture the dominant mechanical phenomena, such as interaction of the host rock with magma and progressive failure of the chamber roof. To this end a comparative study, which involves various representations of magma (inviscid fluid, nearly incompressible elastic or plastic solid) and constitutive models of the host rock (fracture, plasticity), is carried out. The most promising results are obtained with the quasi-brittle fracture model of rock, which correctly captures formation of tension-induced radial and c

Název v anglickém jazyce

Modeling of Shallow Magma Chambers and Caldera Formation

Popis výsledku anglicky

Collapse of shallow magma chamber roofs and formation of collapse calderas are commonly accompanied by ejection of enormous volumes of pyroclastic material to the atmosphere and thus represent severe natural hazards. Numerical analysis can help researchers in understanding the conditions, when these phenomena may occur. The main objective of the present paper is to find a suitable approach to finite element simulation of shallow magma chambers and roof collapse. The model has to capture the dominant mechanical phenomena, such as interaction of the host rock with magma and progressive failure of the chamber roof. To this end a comparative study, which involves various representations of magma (inviscid fluid, nearly incompressible elastic or plastic solid) and constitutive models of the host rock (fracture, plasticity), is carried out. The most promising results are obtained with the quasi-brittle fracture model of rock, which correctly captures formation of tension-induced radial and c

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GAP210%2F12%2F1385" target="_blank" >GAP210/12/1385: Kaldery jako indikátory termálního a mechanického vývoje subvulkanických magmatických krbů</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 2014 ISRM International Symposium - 8th Asian Rock Mechanics Symposium

ISBN

978-4-907430-03-0

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

2450-2459

Název nakladatele

Japanese Committee for Rock Mechanics

Místo vydání

Sapporo

Místo konání akce

Sapporo

Datum konání akce

14. 10. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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