Analysis of Fracture Mechanics tests on Opalinus Clay (Articolo in rivista)

Type
Label
  • Analysis of Fracture Mechanics tests on Opalinus Clay (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00603-012-0225-2 (literal)
Alternative label
  • Valente S.; Fidelibus C.; Löw S.; Cravero M.; Iabichino G.; Barpi F. (2012)
    Analysis of Fracture Mechanics tests on Opalinus Clay
    in Rock mechanics and rock engineering (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Valente S.; Fidelibus C.; Löw S.; Cravero M.; Iabichino G.; Barpi F. (literal)
Pagina inizio
  • 767 (literal)
Pagina fine
  • 779 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://porto.polito.it/id/eprint/2489314 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 45 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 13 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Igag (literal)
Titolo
  • Analysis of Fracture Mechanics tests on Opalinus Clay (literal)
Abstract
  • Many studies have recently been conducted to evaluate various mechanical characteristics of the Opalinus Clay (OPA) formation in view of its potential use as the hosting rock for the Swiss nuclear waste repositories. Its sedimentary bedding makes OPA a transversely isotropic rock and its directional mechanical properties need to be measured. This paper reports on an experimental and computational approach that was adopted to define the parallel-to-bedding fracture mechanics (FM) parameters of OPA in Mode-I. OPA cores from Mont Terri Underground Research Laboratory (URL) were submitted to laboratory tests on notched semi-circular specimens under three-point bending (SCB). In these tests, crack propagation is forced along the notch direction. However, the 45° bedding inclination of the specimen axis frequently deviated the crack from the expected direction. An analysis of the SCB tests was performed by means of non-linear FM techniques and the pertinent Mode-I parameters along the bedding were estimated (literal)
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