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Full Description
Understanding the mechanical behavior of solids and contacts (interfaces and joints) is vital for the analysis, design, and maintenance of engineering systems. Materials may simultaneously experience the effects of many factors such as elastic, plastic, and creep strains; different loading (stress) paths; volume change under shear stress; and microcracking leading to fracture and failure, strain softening, or degradation. Typically, the available models account for only one factor at a time; however, the disturbed state concept (DSC) with the hierarchical single-surface (HISS) plasticity is a unified modeling approach that can allow for numerous factors simultaneously, and in an integrated manner. DSC/HISS Modeling Applications for Problems in Mechanics, Geomechanics, and Structural Mechanics provides readers with comprehensive information including the basic concepts and applications for the DSC/HISS modeling regarding a wide range of engineering materials and contacts. Uniformity in format and content of each chapter will make it easier for the reader to appreciate the potential of using the DSC/HISS modeling across various applications.
Features:
• Presents a new and simplified way to learn characterizations and behaviors of materials and contacts under various conditions
• Offers modeling applicable to several different materials including geologic (clays, sands, rocks), modified geologic materials (structured soils, overconsolidated soils, expansive soils, loess, frozen soils, chemically treated soils), hydrate-bearing sediments, and more.
Contents
Section 1. Introduction. 1. Disturbed State Concept (DSC) with Hierarchical Single Surface (HISS) Plasticity: Theory and Application. Section 2. Geologic Materials. 2. Liquefaction in Geologic Materials. 3. Disturbed State Concept-Based Compression Model for Structured Clays. 4. Sands and Structural Clays. 5. A New Creep Constitutive Model for Soft Rocks and its Application in Prediction of Time-dependent Deformation Disaster in Tunnels. 6. Hydro-Mechanical Behavior of Unsaturated Collapsible Loessial Soils. 7. Applications of DSC in Modeling Strain-Softening Stress-Strain Relationship of Unsaturated Soils. 8. Coefficient of Lateral Soil Pressure in Unsaturated Soils. Section 3. Structured and Bio- or Chem-Treated Soils. 9. Compression of Structured Geomaterials. 10. Chemically Treated Soils. 11. Binary-Medium Constitutive Model (BMCM) for Structured Soils. 12. Collapsing of Sandstone: Acoustic Emission Study Based on DSC Model. Section 4. Fracturing and Crushing Grains. 13. Particle Crushing: DSC/HISS Model Considering the Particle Crushing of Soil. 14. Prediction of Strength for the Degradation of Single-Particle Crushing Based on DSC. Section 5. Geotechnical Structures and Engineering. 15. Reinforced Earth Geosynthetic Walls. 16. Theoretical Solution for Long-term Settlement of a Large Step-Tapered Hollow Pile in Karst Topography. 17. Fluid Flow: Seepage, and Consolidation. 18. A New Theoretical Settlement Model for Large Step-Tapered Hollow Piles Based on the Disturbed State Concept Theory. 19. Applications of DSC and HISS Soil Models in Nonlinear Finite Element Dynamic Analyses of Soil-Structure Interaction Problems. Section 6. Concrete, Pavement Materials, and Structural Engineering. 20. Unified DSC/HISS Constitutive Model for Pavement Materials. 21. Application of DSC/HISS Models for Behavior and Prediction of Rutting in Asphalt Pavements. 22. Concrete. Section 7. Interfaces and Joints. 23. Interfaces and Joints. 24. Interfaces and Joints: Laboratory Tests and Applications. 25. Unsaturated Soil Interfaces.
