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Statements

Subject Item
n2:RIV%2F61989100%3A27230%2F09%3A00020463%21RIV10-GA0-27230___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
This paper focuses on a numerical analysis of the hard rock (platinum 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, reaction forces 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 fracture condition. Material of the ore (i.e. yield stress, fracture limit, etc.), is given by bounded histograms (i.e. stochastic inputs). The results are compared with experiments. Application of the SBRA method in this area is a new and innovative trend. 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 This paper focuses on a numerical analysis of the hard rock (platinum 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, reaction forces 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 fracture condition. Material of the ore (i.e. yield stress, fracture limit, etc.), is given by bounded histograms (i.e. stochastic inputs). The results are compared with experiments. Application of the SBRA method in this area is a new and innovative trend. 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
dcterms:title
PROBABILISTIC SOLUTION OF HARD ROCK DISINTEGRATION PROCESS PROBABILISTIC SOLUTION OF HARD ROCK DISINTEGRATION PROCESS
skos:prefLabel
PROBABILISTIC SOLUTION OF HARD ROCK DISINTEGRATION PROCESS PROBABILISTIC SOLUTION OF HARD ROCK DISINTEGRATION PROCESS
skos:notation
RIV/61989100:27230/09:00020463!RIV10-GA0-27230___
n3:aktivita
n18:P
n3:aktivity
P(GA103/07/0557)
n3:dodaniDat
n4:2010
n3:domaciTvurceVysledku
n6:5035201 n6:5707544
n3:druhVysledku
n16:D
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n5:predkladatel
n3:idSjednocenehoVysledku
336406
n3:idVysledku
RIV/61989100:27230/09:00020463
n3:jazykVysledku
n15:eng
n3:klicovaSlova
probabilistic; hard rock; disintegration process
n3:klicoveSlovo
n9:hard%20rock n9:probabilistic n9:disintegration%20process
n3:kontrolniKodProRIV
[921EF3866181]
n3:mistoKonaniAkce
Sychrov
n3:mistoVydani
Liberec
n3:nazevZdroje
Experimentální analýza napětí 2009
n3:obor
n11:JS
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n21:GA103%2F07%2F0557
n3:rokUplatneniVysledku
n4:2009
n3:tvurceVysledku
Frydrýšek, Karel Marek, Pavel
n3:typAkce
n14:EUR
n3:zahajeniAkce
2009-06-08+02:00
s:numberOfPages
6
n17:hasPublisher
Technická univerzita v Liberci
n19:isbn
978-80-7372-483-2
n7:organizacniJednotka
27230