A new method for numerical simulating the fracture of rock

Author

Jiang Jun-ling ; Ke Chang-ren

Author_Institution

Sch. of Civil Eng., Hubei Univ. of Technol., Wuhan, China

fYear

2010

fDate

26-28 June 2010

Firstpage

1511

Lastpage

1514

Abstract

A multi-scale virtual internal bond (VIB) model for the isotropic materials has been recently proposed to describe the material deformation and fracturing. During the simulation process of material fracturing using VIB, the fracture criterion is directly built into the constitutive formulation of the material using the cohesive force law. Enlightened by the similarity of the damage constitutive model of rock and the cohesive force law of VIB, a VIB density function of rock is suggested. The elastic modulus tensor is formulated on the basis of the density function. Thus a new method for simulating the fracture of rock is formed. Through an example of rock under uniaxial compression, the simulation result works well with the tests.

Keywords

compressive testing; deformation; elastic moduli; fracture mechanics; rocks; tensors; VIB density function; VIB model; cohesive force law; damage constitutive model; elastic modulus tensor; fracture criterion; isotropic materials; material deformation; material fracturing; multiscale virtual internal bond model; numerical simulating; rock; simulation process; uniaxial compression; Bonding; Capacitive sensors; Computational modeling; Computer simulation; Deformable models; Density functional theory; Numerical simulation; Solid modeling; Stability; Surface cracks; bond density function; constitutive model; rock fracture; virtual internal bond model;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7737-1

Type

conf

DOI

10.1109/MACE.2010.5536093

Filename

5536093