Modeling of Shallow Magma Chambers and Caldera Formation

Result code in 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>
Result on the web
<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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Result language
angličtina
Original language name
Modeling of Shallow Magma Chambers and Caldera Formation
Original language description
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
Czech name
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Czech description
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Project
<a href="/en/project/GAP210%2F12%2F1385" target="_blank" >GAP210/12/1385: Calderas as indicators of thermal-mechanical evolution of subvolcanic magma chambers</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
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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Number of pages
10
Pages from-to
2450-2459
Publisher name
Japanese Committee for Rock Mechanics
Place of publication
Sapporo
Event location
Sapporo
Event date
Oct 14, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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