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A platform for research: civil engineering, architecture and urbanism
A Fractal-Based Model for Fracture Deformation Under Shearing and Compression
Abstract This study presents an improved model for calculating mechanical deformation of individual fractures subject to shearing and compression processes. Considering that the fracture-surface roughness can be characterized by fractals, a relationship between asperity angle and size of a fracture with fractal surfaces is derived. In addition, plastic work is employed to account for the effects of fracture-asperity degradation during the shearing process. Based on these developments, a scale-dependent relationship between shear stress and displacement is proposed, and also a formulation to calculate fracture aperture during shearing and compression processes is developed, by relating normal displacement to shear displacement for fractal surfaces. The usefulness of this model is demonstrated by agreements between calculated results and observations from laboratory experiments under different test conditions.
A Fractal-Based Model for Fracture Deformation Under Shearing and Compression
Abstract This study presents an improved model for calculating mechanical deformation of individual fractures subject to shearing and compression processes. Considering that the fracture-surface roughness can be characterized by fractals, a relationship between asperity angle and size of a fracture with fractal surfaces is derived. In addition, plastic work is employed to account for the effects of fracture-asperity degradation during the shearing process. Based on these developments, a scale-dependent relationship between shear stress and displacement is proposed, and also a formulation to calculate fracture aperture during shearing and compression processes is developed, by relating normal displacement to shear displacement for fractal surfaces. The usefulness of this model is demonstrated by agreements between calculated results and observations from laboratory experiments under different test conditions.
A Fractal-Based Model for Fracture Deformation Under Shearing and Compression
Wei, Ming-Yao (author) / Liu, Hui-Hai (author) / Li, Lian-Chong (author) / Wang, En-Yuan (author)
2013
Article (Journal)
English
Local classification TIB:
560/4815/6545
BKL:
38.58
Geomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
A Fractal-Based Model for Fracture Deformation Under Shearing and Compression
| Online Contents | 2013
A Fractal-Based Model for Fracture Deformation Under Shearing and Compression
| British Library Online Contents | 2013
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