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Numerical Modeling of Failure Process in Cohesive Geomaterials

Yao, C. / Jiang, Q. H. / Shao, J. F.

This paper is devoted to numerical modeling of failure process in anisotropic rocks. An extended Rigid Block Spring Method (RBSM) is proposed to describe the onset and propagation of cracks. The continuous rock material is replaced by an equivalent discrete assembly of rigid blocks using the Voronoi scheme. The material strength and deformation are described by an appropriate constitutive law and failure criterion of interfaces between blocks. The proposed method is applied to an anisotropic rock containing parallel bedding planes. The influence of the initial anisotropy on the failure process of material is investigated.

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Numerical Modeling of Failure Process in Cohesive Geomaterials

Yao, C. / Jiang, Q. H. / Shao, J. F.

This paper is devoted to numerical modeling of failure process in anisotropic rocks. An extended Rigid Block Spring Method (RBSM) is proposed to describe the onset and propagation of cracks. The continuous rock material is replaced by an equivalent discrete assembly of rigid blocks using the Voronoi scheme. The material strength and deformation are described by an appropriate constitutive law and failure criterion of interfaces between blocks. The proposed method is applied to an anisotropic rock containing parallel bedding planes. The influence of the initial anisotropy on the failure process of material is investigated.

Numerical Modeling of Failure Process in Cohesive Geomaterials

Yao, C. / Jiang, Q. H. / Shao, J. F.

This paper is devoted to numerical modeling of failure process in anisotropic rocks. An extended Rigid Block Spring Method (RBSM) is proposed to describe the onset and propagation of cracks. The continuous rock material is replaced by an equivalent discrete assembly of rigid blocks using the Voronoi scheme. The material strength and deformation are described by an appropriate constitutive law and failure criterion of interfaces between blocks. The proposed method is applied to an anisotropic rock containing parallel bedding planes. The influence of the initial anisotropy on the failure process of material is investigated.

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Title:

Numerical Modeling of Failure Process in Cohesive Geomaterials

Additional title:

Springer Ser.Geomech.,Geoengineer.

Contributors:

Chau, Kam-Tim (editor) / Zhao, Jidong (editor) / Yao, C. (author) / Jiang, Q. H. (author) / Shao, J. F. (author)

Conference:

International Workshop on Bifurcation and Degradation in Geomaterials ; 2014 ; Hong Kong, Hong Kong

Published in:

Bifurcation and Degradation of Geomaterials in the New Millennium ; Chapter: 7 ; 39-45

Springer Series in Geomechanics and Geoengineering

Publication date:

2014-12-30

Size:

7 pages

ISBN:

978-3-319-13506-9 , 978-3-319-13505-2

ISSN:

1866-8763 , 1866-8755

DOI:

https://doi.org/10.1007/978-3-319-13506-9_7

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Uniaxial Compression Strength , Representative Volume Element , Discrete Element Method , Voronoi Diagram , Bedding Plane Engineering , Offshore Engineering , Geotechnical Engineering & Applied Earth Sciences

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