Mechanical properties and fluid transport in rocks are intimately linked as deformation of a solid rock matrix immediately affects the pore space and permeability. Part I of this topical volume covers mainly the nucleation and evolution of crack damage in rocks, new or modified techniques to measure rock fracture toughness and a discussion of upscaling techniques relating mechanical and fluid transport behaviour in rocks at different spatial scales.

Contenu
Rock Damage and Fluid Transport, Part I.- Fracture Toughness Measurements and Acoustic Emission Activity in Brittle Rocks.- Quantifying Damage, Saturation and Anisotropy in Cracked Rocks by Inverting Elastic Wave Velocities.- Ultrasonic Velocities, Acoustic Emission Characteristics and Crack Damage of Basalt and Granite.- Fracture in Westerly Granite under AE Feedback and Constant Strain Rate Loading: Nucleation, Quasi-static Propagation, and the Transition to Unstable Fracture Propagation.- Stress Sensitivity of Seismic and Electric Rock Properties of the Upper Continental Crust at the KTB.- Can Damage Mechanics Explain Temporal Scaling Laws in Brittle Fracture and Seismicity?.- An Update on the Fracture Toughness Testing Methods Related to the Cracked Chevron-notched Brazilian Disk (CCNBD) Specimen.- Cohesive Crack Analysis of Toughness Increase Due to Confining Pressure.- Fracture Toughness Evaluation Based on Tension-softening Model and its Application to Hydraulic Fracturing.- A Method for Testing Dynamic Tensile Strength and Elastic Modulus of Rock Materials Using SHPB.- True Triaxial Stresses and the Brittle Fracture of Rock.- Discrete Element Modeling of Stress and Strain Evolution Within and Outside a Depleting Reservoir.- Comparison of Numerical and Physical Models for Understanding Shear Fracture Processes.- Upscaling: Effective Medium Theory, Numerical Methods and the Fractal Dream.