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.

Introduces the discrete element method in detail Reviews DEM-FEM and DEM-CFD methods for granular-structure/continuum and solid-fluid coupling Discusses applications of discrete element method in sea-ice, railway-ballast and aerospace engineering

Autorentext

Dr. Siqiang Wang is an assistant researcher and postdoctoral fellow in the Department of Engineering Mechanics at Dalian University of Technology, China. He received his Ph.D. degree from Dalian University of Technology in 2022, majoring in computational mechanics, under the supervision of Prof. Shunying Ji. He has published more than 20 academic papers on discrete element methods for arbitrarily shaped granular materials, high-performance parallel algorithms, and physical and mechanical properties of granular materials, etc. Dr. Shunying Ji is a professor at the State Key Laboratory of Structural Analysis, Optimization, and CAE Software for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, China. He received his Ph.D. degree from Dalian University of Technology in 2001, majoring in engineering mechanics. His research interests include computational mechanics of granular materials and engineering applications. He has published3 academic books, more than 200 academic papers in journals, more than 10 national invention patents and 30 computer software copyrights, and 7 academic awards at provincial and ministerial levels.

Inhalt
Introduction.- Generation of Irregular Shaped Particle Elements.- Micro Contact Model of Granular Materials.- Macro-micro Analysis of Granular Materials.- DEM-FEM Coupling Analysis of Granular Materials.- Fluid-Solid Coupling Analysis of Granular Materials.- High Performance Algorithm, Computing and Analysis Software of DEM Based on GPU Parallel Technology.- DEM Analysis for Ice Loads on Ship and Offshore Structure.- DEM Analysis for Characteristics of Railway Ballast Bed.- DEM Analysis of Vibration Reduction and Buffering Capacity of Granular Material. <p