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Article: Digital image based approach for three-dimensional mechanical analysis of heterogeneous rocks

TitleDigital image based approach for three-dimensional mechanical analysis of heterogeneous rocks
Authors
KeywordsDigital image processing
Failure prediction
Finite difference method
Heterogeneous materials
Numerical simulation
Rock
Issue Date2007
PublisherSpringer-Verlag Wien. The Journal's web site is located at http://www.springer.at/rock_mechanics
Citation
Rock Mechanics And Rock Engineering, 2007, v. 40 n. 2, p. 145-168 How to Cite?
AbstractThis paper presents a digital image based approach for three-dimensional (3-D) numerical simulation and failure analysis of rocks by taking into account the actual 3-D heterogeneity. Digital image techniques are adopted to extract two-dimensional (2-D) material heterogeneity from material surface images. The 2-D image mesostructures are further extrapolated to 3-D cuboid mesostructures by assuming the material surface as a representation of the inner material heterogeneity within a very small depth. The iterative milling and scanning system is set up to generate the 3-D rock mesostructures. A Hong Kong granite specimen is used as an example to demonstrate the procedure of 3-D mesostructure establishment. The mechanical responses and failure process under the conventional Brazilian tensile test condition are examined through numerical analyses. The stress distribution, crack propagation process and failure model of heterogeneous material cases are simulated with a finite difference software. The numerical results indicate that material heterogeneity plays an important role in determining the failure behavior of rocks under external loading. © Springer-Verlag 2007.
Persistent Identifierhttp://hdl.handle.net/10722/70573
ISSN
2015 Impact Factor: 2.386
2015 SCImago Journal Rankings: 1.939
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Sen_HK
dc.contributor.authorYue, ZQen_HK
dc.contributor.authorTham, LGen_HK
dc.date.accessioned2010-09-06T06:24:12Z-
dc.date.available2010-09-06T06:24:12Z-
dc.date.issued2007en_HK
dc.identifier.citationRock Mechanics And Rock Engineering, 2007, v. 40 n. 2, p. 145-168en_HK
dc.identifier.issn0723-2632en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70573-
dc.description.abstractThis paper presents a digital image based approach for three-dimensional (3-D) numerical simulation and failure analysis of rocks by taking into account the actual 3-D heterogeneity. Digital image techniques are adopted to extract two-dimensional (2-D) material heterogeneity from material surface images. The 2-D image mesostructures are further extrapolated to 3-D cuboid mesostructures by assuming the material surface as a representation of the inner material heterogeneity within a very small depth. The iterative milling and scanning system is set up to generate the 3-D rock mesostructures. A Hong Kong granite specimen is used as an example to demonstrate the procedure of 3-D mesostructure establishment. The mechanical responses and failure process under the conventional Brazilian tensile test condition are examined through numerical analyses. The stress distribution, crack propagation process and failure model of heterogeneous material cases are simulated with a finite difference software. The numerical results indicate that material heterogeneity plays an important role in determining the failure behavior of rocks under external loading. © Springer-Verlag 2007.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.subjectDigital image processingen_HK
dc.subjectFailure predictionen_HK
dc.subjectFinite difference methoden_HK
dc.subjectHeterogeneous materialsen_HK
dc.subjectNumerical simulationen_HK
dc.subjectRocken_HK
dc.titleDigital image based approach for three-dimensional mechanical analysis of heterogeneous rocksen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0723-2632&volume=40 &issue=2&spage=145&epage=168&date=2007&atitle=Digital+image+based+approach+for+three-dimensional+mechanical+analysis+of+heterogeneous+rocks+en_HK
dc.identifier.emailYue, ZQ:yueqzq@hkucc.hku.hken_HK
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_HK
dc.identifier.authorityYue, ZQ=rp00209en_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00603-006-0105-8en_HK
dc.identifier.scopuseid_2-s2.0-34047122765en_HK
dc.identifier.hkuros133338en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34047122765&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume40en_HK
dc.identifier.issue2en_HK
dc.identifier.spage145en_HK
dc.identifier.epage168en_HK
dc.identifier.isiWOS:000245363300002-
dc.publisher.placeAustriaen_HK
dc.identifier.scopusauthoridChen, S=7410253051en_HK
dc.identifier.scopusauthoridYue, ZQ=7102782735en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.citeulike1419610-

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