APPLICATIONS OF FINITE ELEMENT METHOD AND SIMULATION-BASED RELIABILITY ASSESSMENT METHOD FOR SOLUTIONS OF THE HARD ROCK DISINTEGRATION PROCESS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F09%3A00020471" target="_blank" >RIV/61989100:27230/09:00020471 - 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

APPLICATIONS OF FINITE ELEMENT METHOD AND SIMULATION-BASED RELIABILITY ASSESSMENT METHOD FOR SOLUTIONS OF THE HARD ROCK DISINTEGRATION PROCESS

Popis výsledku v původním jazyce

This paper focuses on a numerical analysis of the hard rock (ore) disintegration process. The bit moves into the ore (i.e. mechanical contact with friction) and subsequently disintegrates it. The disintegration (i.e. stress-strain relationship, reactionforces and fracture of the ore etc.) is solved via the FEM in combination with SBRA (Simulation- Based Reliability Assessment) Method (i.e. Monte Carlo simulations). The ore is disintegrated by deactivating the finite elements which satisfy the fracturecondition. Material of the ore (i.e. yield stress, fracture limit, etc.), is given by bounded histograms (i.e. stochastic inputs).However, it takes a long time to solve this problem (due to material and structural nonlinearities, the large number of elements, many Monte Carlo simulations, etc.). Hence, parallel computers were used to handle the large computational needs. Finally, the probabilistic reliability assessment is proposed.

Název v anglickém jazyce

APPLICATIONS OF FINITE ELEMENT METHOD AND SIMULATION-BASED RELIABILITY ASSESSMENT METHOD FOR SOLUTIONS OF THE HARD ROCK DISINTEGRATION PROCESS

Popis výsledku anglicky

This paper focuses on a numerical analysis of the hard rock (ore) disintegration process. The bit moves into the ore (i.e. mechanical contact with friction) and subsequently disintegrates it. The disintegration (i.e. stress-strain relationship, reactionforces and fracture of the ore etc.) is solved via the FEM in combination with SBRA (Simulation- Based Reliability Assessment) Method (i.e. Monte Carlo simulations). The ore is disintegrated by deactivating the finite elements which satisfy the fracturecondition. Material of the ore (i.e. yield stress, fracture limit, etc.), is given by bounded histograms (i.e. stochastic inputs).However, it takes a long time to solve this problem (due to material and structural nonlinearities, the large number of elements, many Monte Carlo simulations, etc.). Hence, parallel computers were used to handle the large computational needs. Finally, the probabilistic reliability assessment is proposed.

Druh

D - Stať ve sborníku

CEP obor

JS - Řízení spolehlivosti a kvality, zkušebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F07%2F0557" target="_blank" >GA103/07/0557: Pravděpodobnostní posuzování inženýrské spolehlivosti konstrukcí</a><br>

Návaznosti

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

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

Modelování v mechanice

ISBN

978-80-248-2016-3

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

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Název nakladatele

VŠB - Technická univerzita Ostrava, FAST, Katedra stavební mechaniky

Místo vydání

Ostrava

Místo konání akce

Ostrava

Datum konání akce

19. 5. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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