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Powder assembly simulation by particle dynamics method
Author(s) -
Lian Jianmin,
Shima Susumu
Publication year - 1994
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620370504
Subject(s) - particle (ecology) , angle of repose , monte carlo method , discrete element method , materials science , dissipation , contact force , mechanics , contact dynamics , molecular dynamics , compaction , dynamics (music) , computer simulation , position (finance) , particle method , classical mechanics , statistical physics , physics , composite material , mathematics , thermodynamics , oceanography , statistics , finance , quantum mechanics , acoustics , economics , geology , boundary value problem
The aim of the present study is to show that the developed particle dynamics method is able to describe important characteristics of powder assemblies. In the method, the interaction forces that are introduced between the particles are electrostatic attractive forces and elastic repulsive forces. Energy dissipation by friction at contact surfaces and damping during cohesive collision were also considered. Several numerical experiments on the angle of repose, packing and compaction are carried out. The initial position and the size of the particles are randomly distributed based on the Monte‐Carlo method. The simulation results show that the method can be used to evaluate the effect of particle characteristics on flowability of powder assemblies.