Three-dimensional cosserat continuum modeling of fractured rock masses

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dc.contributor.author Stefanou, I en
dc.contributor.author Sulem, J en
dc.date.accessioned 2014-03-01T02:00:00Z
dc.date.available 2014-03-01T02:00:00Z
dc.date.issued 2010 en
dc.identifier.issn 17569737 en
dc.identifier.uri http://hdl.handle.net/123456789/29067
dc.subject 3D Cosserat en
dc.subject homogenization en
dc.subject rock masses en
dc.subject.other Anisotropic material en
dc.subject.other Continuum model en
dc.subject.other Cosserat en
dc.subject.other Cosserat continuum en
dc.subject.other Differential expansion en
dc.subject.other Dip angle en
dc.subject.other Discrete systems en
dc.subject.other Dynamic behaviors en
dc.subject.other Equivalent continuum en
dc.subject.other Fractured rock mass en
dc.subject.other homogenization en
dc.subject.other Homogenization techniques en
dc.subject.other Internal forces en
dc.subject.other Joint set en
dc.subject.other Mechanical points en
dc.subject.other Rock discontinuity en
dc.subject.other Rock mass en
dc.subject.other rock masses en
dc.subject.other Rock structures en
dc.subject.other Anisotropy en
dc.subject.other Continuum mechanics en
dc.subject.other Homogenization method en
dc.subject.other Kinematics en
dc.subject.other Mathematical models en
dc.subject.other Mechanical properties en
dc.subject.other Rock mechanics en
dc.subject.other Three dimensional en
dc.subject.other Rocks en
dc.title Three-dimensional cosserat continuum modeling of fractured rock masses en
heal.type journalArticle en
heal.identifier.primary 10.1142/S1756973710000424 en
heal.identifier.secondary http://dx.doi.org/10.1142/S1756973710000424 en
heal.publicationDate 2010 en
heal.abstract The behavior of rock masses is influenced by the existence of discontinuities, which divide the rock in joint blocks making it an inhomogeneous anisotropic material. From the mechanical point of view, the geometrical and mechanical properties of the rock discontinuities define the mechanical properties of the rock structure. In the present paper we consider a rock mass with three joint sets of different dip angle, dip direction, spacing and mechanical properties. The dynamic behavior of the discrete system is then described by a continuum model, which is derived by homogenization. The homogenization technique applied here is called generalized differential expansion homogenization technique and has its roots in Germain's (1973) formulation for micromorphic continua. The main advantage of the method is the avoidance of the averaging of the kinematic quotients and the derivation of a continuum that maps exactly the degrees of freedom of the discrete system through a one-to-one correspondence of the kinematic measures. The derivation of the equivalent continuum is based on the identification for any virtual kinematic field of the power of the internal forces and of the kinetic energy of the continuum with the corresponding quantities of the discrete system. The result is an anisotropic three-dimensional Cosserat continuum. © 2010 Imperial College Press. en
heal.journalName Journal of Multiscale Modeling en
dc.identifier.doi 10.1142/S1756973710000424 en
dc.identifier.volume 2 en
dc.identifier.issue 3-4 en
dc.identifier.spage 217 en
dc.identifier.epage 234 en

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