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Article: A study on the peak strength of brittle rocks

TitleA study on the peak strength of brittle rocks
Authors
Issue Date2002
PublisherSpringer-Verlag Wien. The Journal's web site is located at http://www.springer.at/rock_mechanics
Citation
Rock Mechanics And Rock Engineering, 2002, v. 35 n. 4, p. 255-270 How to Cite?
AbstractA study on the peak strength of brittle rock materials having random strength distributions was carried out using the re-normalization group theory approach. A major advantage of the approach is that it is scale invariant, and therefore, one can relate the micro-fractures with macro-fractures of rocks at the critical state. The stress transfer from the broken subsections to the unbroken sub-sections is defined by a conditional probability. The critical probability P* and the relation between the peak strength and the mean strength of the elements have been obtained theoretically. On the other hand, the whole process of rock brittle fracture has also been simulated numerically from micro-fracture to macro-fracture by using the Rock Failure Process Analysis (RFPA) code. The peak strengths obtained by the numerical model agree fairly well with those obtained by the re-normalisation group theory. Due to the stress transfer from the broken subsections to the unbroken subsections, the peak strength is considerably less than the mean strength of the elements.
Persistent Identifierhttp://hdl.handle.net/10722/71153
ISSN
2015 Impact Factor: 2.386
2015 SCImago Journal Rankings: 1.939
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, ZHen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorYeung, MRen_HK
dc.contributor.authorTsui, Yen_HK
dc.contributor.authorLee, PKKen_HK
dc.date.accessioned2010-09-06T06:29:23Z-
dc.date.available2010-09-06T06:29:23Z-
dc.date.issued2002en_HK
dc.identifier.citationRock Mechanics And Rock Engineering, 2002, v. 35 n. 4, p. 255-270en_HK
dc.identifier.issn0723-2632en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71153-
dc.description.abstractA study on the peak strength of brittle rock materials having random strength distributions was carried out using the re-normalization group theory approach. A major advantage of the approach is that it is scale invariant, and therefore, one can relate the micro-fractures with macro-fractures of rocks at the critical state. The stress transfer from the broken subsections to the unbroken sub-sections is defined by a conditional probability. The critical probability P* and the relation between the peak strength and the mean strength of the elements have been obtained theoretically. On the other hand, the whole process of rock brittle fracture has also been simulated numerically from micro-fracture to macro-fracture by using the Rock Failure Process Analysis (RFPA) code. The peak strengths obtained by the numerical model agree fairly well with those obtained by the re-normalisation group theory. Due to the stress transfer from the broken subsections to the unbroken subsections, the peak strength is considerably less than the mean strength of the elements.en_HK
dc.languageengen_HK
dc.publisherSpringer-Verlag Wien. The Journal's web site is located at http://www.springer.at/rock_mechanicsen_HK
dc.relation.ispartofRock Mechanics and Rock Engineeringen_HK
dc.titleA study on the peak strength of brittle rocksen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0723-2632&volume=35&spage=255&epage=270&date=2002&atitle=A+study+on+the+peak+strength+of+brittle+rocksen_HK
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_HK
dc.identifier.emailLee, PKK:hreclkk@hkucc.hku.hken_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.identifier.authorityLee, PKK=rp00141en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00603-002-0029-xen_HK
dc.identifier.scopuseid_2-s2.0-0036796509en_HK
dc.identifier.hkuros76082en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036796509&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume35en_HK
dc.identifier.issue4en_HK
dc.identifier.spage255en_HK
dc.identifier.epage270en_HK
dc.identifier.isiWOS:000178634400002-
dc.publisher.placeAustriaen_HK
dc.identifier.scopusauthoridChen, ZH=7409484279en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.scopusauthoridYeung, MR=7101861686en_HK
dc.identifier.scopusauthoridTsui, Y=7006760586en_HK
dc.identifier.scopusauthoridLee, PKK=24522826500en_HK

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