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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F07%3A01128500%21RIV08-GA0-21110___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
V tomto příspěvku je diskutováno modelování skalních masivů rozrušených řadou diskrétních trhlin. Porovnány jsou jak přístupy založené na jednoduchých homogenizačních přístupech, tak i metody modelování využívající konečných prvků. Rock masses with relatively high concentration of discontinuities or joints are considered. Being aware of limitations of various averaging techniques such as the self consistent orMori-Tanaka methods in providing reliable estimates of generally nonlinear macroscopic response of jointed rock masses, the paper introduces a notion of statistically equivalent periodic unit cell (SEPUC). Such a unit cell contains, in order to reduce the problem complexity, of the orders of magnitude less number of joints in comparison with the actual material system. In analogy with two-phase composites, the SEPUC is expected to be found in a statistical sense by matching suitable microstructure descriptors of both the actual microstructure and periodic one. A possibility of using the second order intensity function as a informative descriptor of the cracks distribution is investigated and possible improvements, although without computational support, are proposed. Rock masses with relatively high concentration of discontinuities or joints are considered. Being aware of limitations of various averaging techniques such as the self consistent orMori-Tanaka methods in providing reliable estimates of generally nonlinear macroscopic response of jointed rock masses, the paper introduces a notion of statistically equivalent periodic unit cell (SEPUC). Such a unit cell contains, in order to reduce the problem complexity, of the orders of magnitude less number of joints in comparison with the actual material system. In analogy with two-phase composites, the SEPUC is expected to be found in a statistical sense by matching suitable microstructure descriptors of both the actual microstructure and periodic one. A possibility of using the second order intensity function as a informative descriptor of the cracks distribution is investigated and possible improvements, although without computational support, are proposed.
dcterms:title
Homogenized Response of Jointed Rock Masses with Periodic Fields Homogenizace odezvy porušených skalních masivů pomocí periodických polí Homogenized Response of Jointed Rock Masses with Periodic Fields
skos:prefLabel
Homogenized Response of Jointed Rock Masses with Periodic Fields Homogenizace odezvy porušených skalních masivů pomocí periodických polí Homogenized Response of Jointed Rock Masses with Periodic Fields
skos:notation
RIV/68407700:21110/07:01128500!RIV08-GA0-21110___
n3:strany
1387;1393
n3:aktivita
n14:Z n14:P
n3:aktivity
P(GD106/03/H150), Z(MSM6840770003)
n3:dodaniDat
n4:2008
n3:domaciTvurceVysledku
n8:2894726 n8:4695046 n8:3638464
n3:druhVysledku
n20:D
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
424723
n3:idVysledku
RIV/68407700:21110/07:01128500
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Effective media theories; Finite element approaches; Jointed rock masses; Statistically optimized periodic unit cells
n3:klicoveSlovo
n9:Finite%20element%20approaches n9:Jointed%20rock%20masses n9:Statistically%20optimized%20periodic%20unit%20cells n9:Effective%20media%20theories
n3:kontrolniKodProRIV
[C95A9E9461C8]
n3:mistoKonaniAkce
Miami, FL
n3:mistoVydani
Forsyth
n3:nazevZdroje
Proceedings of ICCES'07 (International Conference on Computational & Experimental Engineering and Sciences)
n3:obor
n11:JN
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n17:GD106%2F03%2FH150
n3:rokUplatneniVysledku
n4:2007
n3:tvurceVysledku
Šejnoha, Michal Zeman, Jan Gajdošík, Jan
n3:typAkce
n22:WRD
n3:zahajeniAkce
2007-01-01+01:00
n3:zamer
n18:MSM6840770003
s:numberOfPages
7
n19:hasPublisher
Tech Science Press
n10:isbn
978-1-4244-1365-2
n16:organizacniJednotka
21110