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Article: Digital image based numerical modeling method for heterogeneous geomaterials

TitleDigital image based numerical modeling method for heterogeneous geomaterials
Authors
KeywordsDigital Image Processing
Failure Prediction
Finite Difference Method
Geomaterial
Granite
Heterogeneity
Issue Date2005
Publisher《巖土工程學報》編輯部. The Journal's web site is located at http://218.241.156.197/Jwk_ytgcxb/CN/column/column11.shtml
Citation
Chinese Journal Of Geotechnical Engineering, 2005, v. 27 n. 8, p. 956-964 How to Cite?
AbstractA two-dimensional digital image based on numerical modeling method for heterogeneous geomaterials was presented. The granite was used as an example for the present investigation. First, the actual heterogeneities of granitic rock surface were extracted from color image by applying image processing techniques. Then a simple linear transformation was proposed to transform the actual image data into vector square data for generation of finite meshes or grids. Finally, the vector data were incorporated into the traditional numerical methods, such as finite element method and finite difference method for numerical simulations. A finite difference software package FLAC was used to study the rock failure process. Three typical laboratory tests were simulated to examine the influences of material heterogeneities on stress distribution and failure patterns. Numerical results show that digital image based numerical modeling method can be used to calculate the mechanical responses of geomaterials by taking their heterogeneities into considerations.
Persistent Identifierhttp://hdl.handle.net/10722/150315
ISSN
2015 SCImago Journal Rankings: 0.781

 

DC FieldValueLanguage
dc.contributor.authorChen, Sen_US
dc.contributor.authorYue, ZQen_US
dc.contributor.authorTham, LGen_US
dc.date.accessioned2012-06-26T06:03:15Z-
dc.date.available2012-06-26T06:03:15Z-
dc.date.issued2005en_US
dc.identifier.citationChinese Journal Of Geotechnical Engineering, 2005, v. 27 n. 8, p. 956-964en_US
dc.identifier.issn1000-4548en_US
dc.identifier.urihttp://hdl.handle.net/10722/150315-
dc.description.abstractA two-dimensional digital image based on numerical modeling method for heterogeneous geomaterials was presented. The granite was used as an example for the present investigation. First, the actual heterogeneities of granitic rock surface were extracted from color image by applying image processing techniques. Then a simple linear transformation was proposed to transform the actual image data into vector square data for generation of finite meshes or grids. Finally, the vector data were incorporated into the traditional numerical methods, such as finite element method and finite difference method for numerical simulations. A finite difference software package FLAC was used to study the rock failure process. Three typical laboratory tests were simulated to examine the influences of material heterogeneities on stress distribution and failure patterns. Numerical results show that digital image based numerical modeling method can be used to calculate the mechanical responses of geomaterials by taking their heterogeneities into considerations.en_US
dc.languagechien_US
dc.publisher《巖土工程學報》編輯部. The Journal's web site is located at http://218.241.156.197/Jwk_ytgcxb/CN/column/column11.shtmlzh_HK
dc.relation.ispartofChinese Journal of Geotechnical Engineeringen_US
dc.relation.ispartof巖土工程學報 (Yantu Gongcheng Xuebao)-
dc.subjectDigital Image Processingen_US
dc.subjectFailure Predictionen_US
dc.subjectFinite Difference Methoden_US
dc.subjectGeomaterialen_US
dc.subjectGraniteen_US
dc.subjectHeterogeneityen_US
dc.titleDigital image based numerical modeling method for heterogeneous geomaterialsen_US
dc.typeArticleen_US
dc.identifier.emailYue, ZQ: yueqzq@hkucc.hku.hken_US
dc.identifier.emailTham, LG: hrectlg@hkucc.hku.hken_US
dc.identifier.authorityYue, ZQ=rp00209en_US
dc.identifier.authorityTham, LG=rp00176en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-24344450879en_US
dc.identifier.hkuros102444-
dc.identifier.volume27en_US
dc.identifier.issue8en_US
dc.identifier.spage956en_US
dc.identifier.epage964en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridChen, S=7410253051en_US
dc.identifier.scopusauthoridYue, ZQ=7102782735en_US
dc.identifier.scopusauthoridTham, LG=7006213628en_US

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