|
|
 |
|
Viewing report
|
|
|
|
Boundary Element Analysis of Crack Propagation on
Anisotropic Rocks. Edition No. 1
VDM Publishing House, Dec 2008, Pages: 132
Rock masses in nature contain numerous
discontinuities as cracks,
joints, cleavages, beddings and even faults etc. In
the cracked
material, the stress intensity factors (SIFs) at
crack tips, which
govern the crack propagation and are associated with
the strength
of the material, are strongly affected by crack
inclination angle,
orientation of anisotropy. This book presents the
development of a
unified numerical framework based on the BEM for
modeling crack
propagation behavior in anisotropic rocks.
The following topics are discussed in this book:
1. Evaluating the SIFs?A new formulation of the BEM,
based on the
relative displacements at the crack tip, is used to
determine the
mixed mode SIFs of isotropic and anisotropic rocks.
2. Determination of Fracture Toughness?A procedure
to determine
the fracture toughness of anisotropic rocks under
mixed mode I-II
loadings is presented.
3. Simulation of Crack Propagation?The BEM
formulation combined
with the maximum circumferential stress criterion
was used to
simulate the crack propagation paths.
|
|
|
|
