2-D Granular Model of Composite Elasticity using Molecular Dynamics   Simulation
  Composite of two kinds of grains is modeled in two-dimension and the elasticity is calculated using molecular dynamics method implementing Gear predictor-corrector of fifth order. It has been observed that same composite concentration can be represented by several configurations of the two kinds of grains. Simulation results show a peak or maximum value of a parameter proportional to Young's modulus, which quantitatively agrees with reported experiment results. Ratio of used in simulation has influenced average value of the mentioned parameter monotonically, it is increasing as the ratio increasing. 
Sparisoma Viridi, Widayani, Siti Nurul Khotimah
cond-mat.soft