Book contents
- Geologic Fracture Mechanics
- Geologic Fracture Mechanics
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgements
- 1 Introduction to Geologic Structural Discontinuities
- 2 Elastic Rock Rheology and Stress Concentration
- 3 Stress, Mohr Circles, and Deformation at Peak Strength
- 4 Cracks and Anticracks
- 5 Discontinuity Patterns and Their Interpretation
- 6 Faults
- 7 Deformation Bands
- 8 Fracture Mechanics: A Tour of Basic Principles
- 9 Beyond Linear Elastic Fracture Mechanics
- Glossary
- References
- Index
- Answers to Selected Exercises
3 - Stress, Mohr Circles, and Deformation at Peak Strength
Published online by Cambridge University Press: 03 August 2019
- Geologic Fracture Mechanics
- Geologic Fracture Mechanics
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgements
- 1 Introduction to Geologic Structural Discontinuities
- 2 Elastic Rock Rheology and Stress Concentration
- 3 Stress, Mohr Circles, and Deformation at Peak Strength
- 4 Cracks and Anticracks
- 5 Discontinuity Patterns and Their Interpretation
- 6 Faults
- 7 Deformation Bands
- 8 Fracture Mechanics: A Tour of Basic Principles
- 9 Beyond Linear Elastic Fracture Mechanics
- Glossary
- References
- Index
- Answers to Selected Exercises
Summary
This chapter provides a synopsis of the use of 2-D (two-dimensional) stress in rock deformation. First, we’ll look at how to apply these simple equations to problems in Coulomb frictional sliding along surfaces in rock. Then we’ll introduce two other very useful, but somewhat more involved, failure criteria for rocks. By the end of the chapter you should be able to start with the stresses on a small piece of intact rock, know how to deal with either a simple Coulomb slip surface or a crack, and then apply this to understand the field-scale characteristics of large-scale fractured outcrops (Fig. 3.1).
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- Geologic Fracture Mechanics , pp. 75 - 142Publisher: Cambridge University PressPrint publication year: 2019