Gilles Pijaudier-Cabot is Professor of Civil Engineering at Université de Pau et des Pays de l'Adour. His research interests cover quasi-brittle materials, concrete mechanics, computational failure models and durability mechanics.

Preface vii

Introduction xi

Chapter 1 Experiments in a Representative Environment 1

1.1 Mechanical set-up 1

1.2 Pulsed arc electric generator 4

1.3 Material properties 6

1.4 Measurements of radical permeability 7

1.5 X-ray tomography 9

1.6 Results on model materials 10

1.7 Summary of the results on sandstone 17

1.8 Discussion 18

Chapter 2 Computational Modeling of the Process: Principles 21

2.1 Pressure generated by the pulsed arc electrical discharge 22

2.2 Mechanical modeling of rocks under dynamic loads 29

2.3 Coupled effects between damage and permeability 41

2.4 Summary and conclusions 44

Chapter 3 Validation of the Computational Model 47

3.1 Simulation of the experiments in uniaxial compression 47

3.2 Confined tests on hollow cylinders 52

3.3 Isotropic versus anisotropic permeability 67

3.4 Conclusions 68

Chapter 4 Computations on Representative Reservoir Geometries 71

4.1 Effect of repeated shocks 72

4.2 Simulation on a typical reservoir geometry 75

4.3 Optimization of the process 79

Concluding Remarks and Future Outlook 91

Bibliography 97

Index 103

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