| Description |
1 online resource (xxiii, 294 pages) : illustrations (some color) |
| Contents |
Chapter 1 Principles and Implementation of DEM -- Chapter 2 The Basic Structure of MatDEM -- Chapter 3 Geometric Modeling and Material Setup -- Chapter 4 Load Settings and Numerical Calculations -- Chapter 5 Postprocessing and System Functions -- Chapter 6 Basic Application of Geotechnical Engineering -- Chapter 7 Rock-Soil Body Discrete Element Test -- Chapter 8 Modeling of Complex 3D Models -- Chapter 9 Numerical Simulations of Dynamic Action -- Chapter 10 Multi-field Coupled Numerical Simulation -- Appendix Properties, Functions and Frequently Asked Questions |
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Intro -- Foreword by Bin Shi -- Foreword by Y.T. Feng -- Preface -- About This Book -- Contents -- About the Author -- 1 Principles and Implementation of DEM -- 1.1 Application and Numerical Calculation Software of DEM -- 1.2 Basic Principles of DEM -- 1.2.1 Contact Model of Elements -- 1.2.2 Connection of Two Different Elements -- 1.2.3 Time Step Iterative Algorithm -- 1.3 Damping Harmonic Vibration of Elements -- 1.3.1 Damping Force of Elements -- 1.3.2 Equation of the Damping Harmonic Vibration -- 1.3.3 Relation Between Vibration Period and Element Radius |
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1.3.4 Differences of the Element Motion -- 1.3.5 Damping and Optimal Damping Coefficient -- 1.4 Energy Conversion and Energy Conservation of DEM -- 1.4.1 Mechanical Energy of Systems -- 1.4.2 Calculation of Heat -- 1.4.3 Energy Conservation and External Work -- 1.5 Calculation Scale and Engineering Application Feasibility of DEM -- 1.6 Understanding and Solution to the Three Major Issues in DEM -- 1.6.1 High-Performance Matrix Computing of the Discrete Element Method -- 1.6.2 Quantitative Modeling Problem of DEM -- 1.6.3 Multi-field Coupling Method Based on DEM |
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1.7 Development and Prospect of MatDEM -- References -- 2 The Basic Structure of MatDEM -- 2.1 The Software Foundation -- 2.1.1 The Operating Environment and Software Installation -- 2.1.2 The Windows Program for MatDEM -- 2.1.3 Operation and Termination of the Software -- 2.1.4 A Brief Introduction to the Application of the Software -- 2.1.5 A Brief Introduction to the Help File -- 2.2 The Program Structure of MatDEM -- 2.2.1 The Software Folders of MatDEM -- 2.2.2 The Hierarchical Structure of MatDEM -- 2.2.3 The Main Classes in MatDEM -- 2.3 Types of Element in MatDEM |
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2.3.1 Active Element, Wall Element, and Virtual Element -- 2.3.2 Fix the Degree of Freedom of Elements -- 2.3.3 The Rule of Numbering Elements -- 2.4 The Data Structure of MatDEM -- 2.4.1 The Property Arrays of Elements -- 2.4.2 The Neighbor Matrix and Connection Information Matrix -- 2.4.3 The Data Structure and Operation of Groups -- 2.5 The Contact Model Between Elements -- 2.5.1 The Linear Elastic Contact Model -- 2.5.2 The Hertz Contact Model -- 2.6 The Elastic Clump -- 2.6.1 The Principle of the Elastic Clump -- 2.6.2 Usage of the Elastic Clump -- 3 Geometric Modeling and Material Setup |
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3.1 Building a Numerical Simulation Box -- 3.1.1 Building a Packing Model -- 3.1.2 Creating an Empty Box -- 3.2 The Foundation of Modular Modeling -- 3.2.1 Modeling with a Structure -- 3.2.2 Filtering -- 3.2.3 ToolCut and Digital Elevation Model -- 3.3 Modeling Based on Digital Images -- 3.3.1 Importing a Binary Image to Cut a Model -- 3.3.2 Block Modeling by Importing a Color Image -- 3.4 Material Setting -- 3.4.1 Overview of Material Setting -- 3.4.2 Input the Material Properties Directly -- 3.4.3 Automatic Training of Materials -- 3.5 Balance Model |
| Summary |
This book introduces the basic structure, modeling methods, numerical calculation processes, post-processing, and system functions of MatDEM, which applies the basic principles and algorithm of the discrete element method. The discrete element method can effectively simulate the discontinuity, inhomogeneity, and large deformation damage of rock and soil. It is widely used in both research and industry. Based on the innovative matrix discrete element computing method, the author developed the high-performance discrete element software MatDEM from scratch, which can handle millions of elements in discrete element numerical simulations. This book also presents several examples of applications in geological and geotechnical engineering, including basic geotechnical engineering problems, discrete element tests, three dimensional landslides, and dynamic and multi-field coupling functions. Teaching videos and the relevant software can be accessed on the MATDEM website (http://matdem.com). The book serves as a useful reference for research and engineering staff, undergraduates, and postgraduates who work in the fields of geology, geotechnical, water conservancy, civil engineering, mining, and physics |
| Notes |
Online resource; title from PDF title page (SpringerLink, viewed March 9, 2021) |
| In |
Springer Nature eBook |
| SUBJECT |
MatDEM (Computer file)
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| Subject |
Geotechnical engineering -- Mathematics
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Discrete element method.
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Engineering geology.
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Foundations.
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Hydraulics.
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Computer-aided engineering.
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discrete element method.
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foundations (structural elements)
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hydraulics.
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computer-aided engineering.
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Computer-aided engineering
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Discrete element method
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Engineering geology
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Foundations
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Hydraulics
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| Form |
Electronic book
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| ISBN |
9789813345249 |
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9813345241 |
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