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Force models for particle-dynamics simulations of granular materials

机译：用于粒状材料的粒子动力学模拟的力模型

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摘要

Engineering-mechanics contact models are utilized to describe the inelastic, frictional interparticle forces acting in dry granular systems. Simple analyses based on one-dimensional chains are utilized to illustrate wave propagation phenomena in dense and dilute discrete particulates. The variation of restitution coefficient with impact velocity is illustrated for a variety of viscous and hysteretic normal force models. The effects of interparticle friction on material strength in discrete-particle simulations are much closer to measured values than are theories that do not allow article rotations.

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作者
Walton, O. R.;
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年度 1994
页码 1-11
总页数 11
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Granular Materials; Computerized Simulation; Dynamics; Mathematical Models; Rotation; Sliding Friction; Wave Propagation; Meetings;

机译：颗粒材料;计算机模拟;动力学;数学模型;旋转;滑动摩擦;波传播;会议;

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6. Efficient Voronoi volume estimation for DEM simulations of granular materials under confined conditions [O] . Göran Frenning 2015

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7. Force Models for Particle-Dynamics Simulations of Granular Materials [O] . O. R. Walton 1995

机译：颗粒材料粒子动力学模拟力模型

Force models for particle-dynamics simulations of granular materials

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