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3DEC Theory and Background

This volume contains background information and descriptions of the theoretical basis for the basic components of 3DEC.

  • Background — the 3D Distinct Element Method
    • Aspects of Modeling a Discontinuous System
    • Numerical Formulation of the Distinct Element Method in 3D
    • References
  • Constitutive Models in 3DEC
    • Block Constitutive Models
    • Zone Constitutive Models
    • Creep Material Models
    • Joint Constitutive Models
    • Writing New Constitutive Models
  • Structural Elements
  • Fluid-Mechanical Interaction
    • Introduction
    • Pore Pressure and Effective Stress
    • Matrix Fluid Flow
    • Joint Fluid Flow
    • Proppant
    • Fluid Flow Properties and Units
  • Factor-of-Safety Calculation
  • Energy Calculation
    • Introduction
    • Energy Balance
    • Calculation of Individual Energy Components
    • References
  • Isolated Block Stability Method
    • Introduction
    • Description of the Method
    • Example Applications
    • References
  • Structural Finite Elements
    • Element Formulation
    • Element Implementation in 3DEC
    • Contact Forces
    • Application of Boundary Loads and Velocities
    • Solution Algorithm
    • Generation and Use of FE Blocks
    • Shape Functions and Derivatives
    • Commands and Keywords for Finite Element Blocks
    • Verification: Cantilever Beam
    • Example: Tunnel Liner
    • Example of Creating a Finite Element Base Model of a Dam in 3DEC
  • References
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  • Itasca Software 9.0 documentation »
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