Computational Granular Mechanics and Its Engineering Applications

1. Front Matter

   Pages i-xvii

   PDF

2. Introduction

   • Shunying Ji, Lu Liu

   Pages 1-19

3. Fundamentals of Computational Granular Mechanics

   1. Front Matter

      Pages 21-21

      PDF

   2. Constructions of Irregular Shaped Particles in the DEM

      • Shunying Ji, Lu Liu

      Pages 23-49

   3. Contact Force Models for Granular Materials

      • Shunying Ji, Lu Liu

      Pages 51-96

   4. Macro-Meso Analysis of Stress and Strain Fields of Granular Materials

      • Shunying Ji, Lu Liu

      Pages 97-136

   5. Coupled DEM-FEM Analysis of Granular Materials

      • Shunying Ji, Lu Liu

      Pages 137-173

   6. Fluid-Solid Coupling Analysis of Granular Materials

      • Shunying Ji, Lu Liu

      Pages 175-210

   7. High Performance Algorithm and Computing Analysis Software of DEM Based on GPU Parallel Algorithm

      • Shunying Ji, Lu Liu

      Pages 211-234

4. Engineering Applications of Computational Granular Mechanics

   1. Front Matter

      Pages 235-235

      PDF

   2. DEM Analysis of Ice Loads on Offshore Structures and Ship Hull

      • Shunying Ji, Lu Liu

      Pages 237-310

   3. DEM Analysis of Mechanical Behaviors of Railway Ballast

      • Shunying Ji, Lu Liu

      Pages 311-358

   4. DEM Analysis of Vibration Reduction and Buffering Capacity of Granular Materials

      • Shunying Ji, Lu Liu

      Pages 359-387

This book systematically introduces readers to computational granular mechanics and its relative engineering applications. Part I describes the fundamentals, such as the generation of irregular particle shapes, contact models, macro-micro theory, DEM-FEM coupling, and solid-fluid coupling of granular materials. It also discusses the theory behind various numerical methods developed in recent years. Further, it provides the GPU-based parallel algorithm to guide the programming of DEM and examines commercial and open-source codes and software for the analysis of granular materials. Part II focuses on engineering applications, including the latest advances in sea-ice engineering, railway ballast dynamics, and lunar landers. It also presents a rational method of parameter calibration and thorough analyses of DEM simulations, which illustrate the capabilities of DEM. The computational mechanics method for granular materials can be applied widely in various engineering fields, such as rock and soil mechanics, ocean engineering and chemical process engineering.

• Computational Granular Mechanics
• Discrete Element Method (DEM)
• Macro-Micro Analysis
• DEM-FEM Coupling
• Solid-Fluid Coupling
• GPU-based Programming
• Sea Ice Engineering
• Railway Ballast
• Buffering Capacity

• Department of Engineering Mechanics, Dalian University of Technology, Dalian, China

  Shunying Ji, Lu Liu

Dr. Shunying Ji is a Professor at the Department of Engineering Mechanics, Dalian University of Technology. His work mainly focuses on computational granular mechanics and its engineering applications. He is a member of the polar technology committee of the International Ship and Offshore Structures Congress, academic committee of the Ice Science Conference at IAHR, and subcommittee on granular materials of EMI at ASCE. He presides over and participates in several projects funded by NSFC and National Key R&D Program of China. He has published more than 150 journal papers in the above fields. In recent years, he has worked on the discrete element method (DEM) and its applications in cold-region offshore engineering, and the development of GPU-based DEM software.

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