Kooperativer Bibliotheksverbund

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Format: 1 online resource (473 p.)

ISBN: 9780128011553 , 0128011556 , 9780128008683 , 0128008687

Content: Rapid Penetration into Granular Media: Visualizing the Fundamental Physics of Rapid Earth Penetration introduces readers to the variety of methods and techniques used to visualize, observe, and model the rapid penetration of natural and man-made projectiles into earth materials. It provides seasoned practitioners with a standard reference that showcases the topic's most recent developments in research and application. The text compiles the findings of new research developments on the subject, outlines the fundamental physics of rapid penetration into granular media, and assembles a com

Note: Description based upon print version of record. , Front Cover; Rapid Penetration into Granular Media: Visualizing the Fundamental Physics of Rapid Earth Penetration; Copyright; Contents ; About the Authors and Contributors; Acknowledgments ; Chapter 1: Introduction; 1. Background; 2. Objectives and Scope; 3. Organization of This Book; 3.1. Introductory chapters; 3.2. Conventional approaches for visualization of traveling projectiles; 3.3. Noncontact diagnostics for visualization of traveling projectiles; 3.4. Soil surrogates for visualization of traveling projectiles; 4. Concluding Remarks , Chapter 2: Behavior of Granular Media Under High Strain-Rate Loading1. Introduction; 2. Behavior of Sand Under Quasistatic Loading; 2.1. Uniaxial response; 2.2. Triaxial response; 3. Testing of Sand for HSR Behavior; 4. HSR Uniaxial Compression (Oedometer) Tests; 4.1. Wave propagation effects; 4.2. HSR effects on confined modulus; 4.3. Effect of saturation; 5. SHPB Test; 5.1. Background; 5.2. Stress uniformity in SHPB tests; 5.3. Effect of lateral confinement; 5.4. Grain fracture; 5.5. Particle-scale tests; 5.6. Effect of saturation; 5.7. Strain rate effects; 6. HSR Triaxial Shear Test , 6.1. General comments6.2. Sample size and inertial effects; 6.3. Shear strength under HSR loading; 6.4. Effect of saturation; 6.5. Modulus and strain to failure; 6.6. Shear band formation; 7. Shock Wave Tests; 8. Summary and Conclusions; Acknowledgments ; References; Chapter 3: Micromechanical Behavior of Sand Learned from Multiscale Kolsky Bar Experiments; 1. Introduction; 2. Split Hopkinson Pressure Bar (Kolsky Bar); 2.1. Pulse shaping; 2.2. Confinement; 2.3. Triaxial Kolsky bar (confined Kolsky bar); 3. High Strain-Rate Behavior of Sand; 3.1. Effects of initial density; 3.2. Moisture , 3.3. Strain rate3.4. Lateral confinement; 4. Particle Failure in Kolsky Bar Experiments; 4.1. Measurement of particle breakage; 4.2. Factors affecting particle breakage; 5. Individual Particle Failure Studies; 5.1. Dynamic compression synchronized with high-speed X-ray phase contrast imaging; 5.2. Quasi-static compression synchronized with 3D X-ray tomography; 5.3. Significance of individual particle failure modes; 6. Conclusions; References; Chapter 4: High-Speed Penetration of Granular Geomaterials; 1. Introduction; 2. General Aspects of Rapid Penetration into Granular Media , 2.1. TerminologyTarget material description; Length scale; Velocity regimes; Projectile geometry; 2.2. Energy dissipation; 2.3. Shallow vs. deep penetration; 2.4. Cavity expansion; 2.5. Laboratory-scale vs. large-scale testing; Diameter ratio; Relative density (packing); Soil aging; Particle size; Gravitational stress; 3. Laboratory and Field Observations of Projectile Penetration; 3.1. Observations at the micro- and mesoscale; 3.2. Observations at the macroscale; 3.3. Multiscale phenomena; 4. Modeling of Projectile Penetration; 4.1. Phenomenological models; 4.2. Wholly empirical formulas , 4.3. Analytic predictions , English

Language: English