Accession Number : ADA262556


Title :   Numerical Simulation of Systems of Multitudinous Polygonal Blocks


Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH


Personal Author(s) : Hopkins, Mark A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a262556.pdf


Report Date : Dec 1992


Pagination or Media Count : 75


Abstract : In this work a method is developed for the simulation of two-dimensional systems of discrete convex polygonal particles. The particles themselves are rigid while the interparticle contacts are deformable. The contacts are termed deformable because areas of overlap that are found between adjacent particles are interpreted as surface deformations. The contact forces between particles are calculated from an elastic-viscous-plastic model based on the area of overlap and the rate of change of the area of overlap. The magnitude of the contact force is limited by the strength of the material. If the contact force reaches this limit, further deformation is non-recoverable....Discrete element method, Ice ridging, Pressure ridging, Ice mechanics, Particle simulation


Descriptors :   *MATHEMATICAL MODELS , *COMPUTERIZED SIMULATION , *ICE MECHANICS , *SEA ICE , *POLYGONS , ALGORITHMS , TWO DIMENSIONAL , MATERIALS , DEFORMATION , RATES , SURFACES , MECHANICS , PARTICLES , ICE , PRESSURE , OVERLAP , PLASTICS


Subject Categories : Snow, Ice and Permafrost


Distribution Statement : APPROVED FOR PUBLIC RELEASE