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Systemic characterization and evaluation of particle packings as initial sets for discrete element simulations

机译：用于离散元模拟的初始组的颗粒填料的全系统特征和评估

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摘要

A methodology that comprises several characterization properties for particle packings is proposed in this paper. The methodology takes into account factors such as dimension and shape of particles, space occupation, homogeneity, connectivity and isotropy, among others. This classification and integration of several properties allows to carry out a characterization process to systemically evaluate the particle packings in order to guarantee the quality of the initial meshes in discrete element simulations, in both the micro- and the macroscales. Several new properties were created, and improvements in existing ones are presented. Properties from other disciplines were adapted to be used in the evaluation of particle systems. The methodology allows to easily characterize media at the level of the microscale (continuous geometries-steels, rocks microstructures, etc., and discrete geometries) and the macroscale. A global, systemic and integral system for characterizing and evaluating particle sets, based on fuzzy logic, is presented. Such system allows researchers to have a unique evaluation criterion based on the aim of their research. Examples of applications are shown.
机译：本文提出了一种包括用于颗粒填料的若干表征性质的方法。该方法考虑了粒子，空间占用，均匀性，连接性和各向同性的尺寸和形状等因素。该分类和多个属性的集成允许执行表征过程以系统地评估颗粒填充物，以便在微观和宏观中保证离散元模拟中的初始网格的质量。创建了几个新的属性，并提出了现有的新属性。来自其他学科的性质适用于粒子系统的评估。该方法允许在微尺度（连续几何钢，岩石微结构等和离散几何形状）和Macroscale的介质上容易地表征介质。提出了一种基于模糊逻辑的用于表征和评估粒子的全局，系统和积分系统。这种系统允许研究人员根据他们的研究的目的具有独特的评估标准。显示了应用的示例。

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