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In this chapter, the fundamental concepts and principles underlying the DEMDiscrete Element Method (DEM) are introduced. The key aspects of particle kinematicsParticle kinematics, forcesForces acting on particles, the selection of time stepsTime step, contact detection algorithmsContact detection algorithm, boundary and initial conditionsBoundary and initial conditions, time integration schemesTime integration schemes and the overall calculation procedureCalculation procedure in DEM simulations are included. The theoretical foundation laid out in this chapter provide the basis for understanding how DEM is applied in various engineering and scientific disciplines.

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Theoretical Framework

  • 章节

  • 发表日期：

    2026年

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  • Ramesh K. Agarwal,
  • Yali Shao

摘要

In this chapter, the fundamental concepts and principles underlying the DEMDiscrete Element Method (DEM) are introduced. The key aspects of particle kinematicsParticle kinematics, forcesForces acting on particles, the selection of time stepsTime step, contact detection algorithmsContact detection algorithm, boundary and initial conditionsBoundary and initial conditions, time integration schemesTime integration schemes and the overall calculation procedureCalculation procedure in DEM simulations are included. The theoretical foundation laid out in this chapter provide the basis for understanding how DEM is applied in various engineering and scientific disciplines.