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E-raamat: High Performance Computing and the Discrete Element Model: Opportunity and Challenge

(Lecturer, School of Civil and Environmental Engineering, UNSW Australia)
  • Formaat: EPUB+DRM
  • Ilmumisaeg: 31-Oct-2015
  • Kirjastus: ISTE Press Ltd - Elsevier Inc
  • Keel: eng
  • ISBN-13: 9780081008096
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High Performance Computing and the Discrete Element Model: Opportunity and ChallengeSuurem pilt
  • Formaat: EPUB+DRM
  • Ilmumisaeg: 31-Oct-2015
  • Kirjastus: ISTE Press Ltd - Elsevier Inc
  • Keel: eng
  • ISBN-13: 9780081008096
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This book addresses the high performance computing of the Discrete Element Model (DEM). It is a comprehensive presentation of parallel implementation of the DEM on three popular parallel computing platforms; the multi-core PC, the GPU computer, and the cluster supercomputer. Featuring accompanying MatLab source this book helps you implement the DEM model for use with high performing technology, for particular implementation of the dynamic failure of solids, granular flow and stress wave propagation through solids.

  • Features both Pre-processor, Solver, and Post-processor for the DEM
  • Covers the parallel implementation of DEM on the cluster, multi-core PC, GPU PC
  • Full of examples of dynamic fracturing, granular flow and stress wave propagation using high performance DEM
  • Source codes and data files available for hands-on practice

Muu info

Implementation of the Discrete Element Model (DEM) by using Matlab
Foreword vii
Preface ix
Introduction xi
Chapter 1 Serial Implementation
1(52)
1.1 System design
1(7)
1.1.1 Data structures
2(3)
1.1.2 Algorithms
5(3)
1.2 Contact detection
8(6)
1.2.1 Simplified grid cell method
8(2)
1.2.2 Particle-to-particle contact
10(2)
1.2.3 Wall-to-particle contact
12(2)
1.3 Constitutive model
14(7)
1.3.1 Particle-to-particle constitutive model
14(5)
1.3.2 Wall-to-particle constitutive model
19(2)
1.4 Time step, damping and energy calculation
21(2)
1.5 Benchmark examples
23(29)
1.5.1 Falling ball under gravity
23(2)
1.5.2 Pendulum problem
25(3)
1.5.3 Elastic deformation of normal spring under tension
28(1)
1.5.4 Elastic deformation of spring under shear
29(3)
1.5.5 Failure of normal spring under tension
32(2)
1.5.6 Failure of shear spring under shear
34(2)
1.5.7 Newton balls
36(3)
1.5.8 Bounce back ball
39(4)
1.5.9 Sliding particle
43(2)
1.5.10 Sliding particle with rolling
45(3)
1.5.11 Rock fall problem
48(1)
1.5.12 Beam collision
49(3)
1.6 Conclusion
52(1)
Chapter 2 Multi-core Implementation
53(32)
2.1 Multi-core personal computer
53(2)
2.2 Multi-core implementation using MATLAB
55(2)
2.3 Performance analysis
57(3)
2.4 Parallel implementation
60(4)
2.5 Numerical examples
64(19)
2.5.1 Uniaxial compression test
64(4)
2.5.2 Beam bending test
68(6)
2.5.3 Collapse of a granular tree under gravity
74(3)
2.5.4 Block caving
77(6)
2.6 Conclusion
83(2)
Chapter 3 GPU Implementation
85(28)
3.1 Graphics processing unit computing
85(1)
3.2 GPU implementation of DICE2D
86(6)
3.3 Examples
92(19)
3.3.1 Uniaxial tension test
92(9)
3.3.2 Brazilian disk test
101(4)
3.3.3 Uniaxial compressive strength test
105(2)
3.3.4 Triaxial compressive test
107(4)
3.4 Conclusion
111(2)
Chapter 4 DICE2D and Cluster
113(24)
4.1 Leonardi cluster
114(1)
4.2 Run DICE2D on cluster
115(2)
4.3 Numerical examples
117(19)
4.3.1 Collapse of trees under gravity
117(1)
4.3.2 Rock cutting
118(4)
4.3.3 Slope stability analysis
122(8)
4.3.4 Interaction between ground structure and underground structure
130(6)
4.4 Conclusion
136(1)
Bibliography 137(6)
Index 143
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