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Modeling of anisotropic damage and creep deformation in brittle rocks
Shao, JF; Chau, KT; Feng, XT
2006
Source PublicationINTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
ISSN1365-1609
Volume43Issue:4Pages:582-592
Abstract

A new constitutive model is proposed for the description of induced anisotropic damage in brittle rocks. The formulation of the model is based on relevant results from micromechanics consideration. The distribution of microcracks is approximated by a second-order damage tensor. The effective elastic properties of damaged material are derived from the free enthalpy function. The evolution of damage is directly related to the growth of microcracks in different space orientations. The volumetric dilatancy due to sliding crack opening is taken into account. The model is extended to the description of creep deformation in brittle rocks. The time dependent deformation is seen as a consequence of the sub-critical propagation of microcracks due to stress corrosion process. The proposed model is applied to a typical brittle rock, the Lac du Bonnet granite. A general good agreement is obtained between numerical simulations and experimental data. (c) 2005 Elsevier Ltd. All rights reserved.

KeywordAnisotropic Damage Creep Deformation Microcracks Granite Brittle Materials
DOI10.1016/j.ijrmms.2005.10.004
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Mining & Mineral Processing
WOS SubjectEngineering, Geological ; Mining & Mineral Processing
WOS IDWOS:000236506100009
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:74[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/3148
Collection岩土力学所知识全产出_期刊论文
岩土力学所知识全产出
AffiliationCNRS, Lab Mech Lille; Chinese Acad Sci, Inst Rock & Soil Mech; Hong Kong Polytech Univ, Dept Civil & Struct Engn
Recommended Citation
GB/T 7714
Shao, JF,Chau, KT,Feng, XT. Modeling of anisotropic damage and creep deformation in brittle rocks[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2006,43(4):582-592.
APA Shao, JF,Chau, KT,&Feng, XT.(2006).Modeling of anisotropic damage and creep deformation in brittle rocks.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,43(4),582-592.
MLA Shao, JF,et al."Modeling of anisotropic damage and creep deformation in brittle rocks".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 43.4(2006):582-592.
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