KONA Powder and Particle Journal最新文献_第3页

Particle Size Measurement Using a Phase Retrieval Holography System with a GPU-Equipped SBC 使用配备gpu的SBC相位检索全息系统进行粒度测量

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2023-01-01 DOI: 10.14356/kona.2024002

Yohsuke Tanaka, D. Nakai

引用次数: 0

Effects of DEM Parameters and Operating Conditions on Particle Dynamics in a Laboratory Scale Rotating Disc DEM参数和工况对实验室尺度旋转圆盘颗粒动力学的影响

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2023-01-01 DOI: 10.14356/kona.2024016

R. M. Lima, Gisele M. Souza, R. J. Brandão, C. Duarte, M. Barrozo

引用次数: 0

Measurement of Fugitive Particulate Matter Emission: Current State and Trends 逸散性颗粒物排放的测量:现状和趋势

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2023-01-01 DOI: 10.14356/kona.2024008

Tianyi Cai, Wu Zhou

引用次数: 0

Review and Further Validation of a Practical Single-particle Breakage Model 一个实用的单颗粒断裂模型的回顾与进一步验证

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2022-01-10 DOI: 10.14356/KONA.2022012

L. M. Tavares

引用次数: 11

The 8th APT (Asian Particle Technology Symposium) 2021 Held in Osaka 2021第八届亚洲粒子技术研讨会在大阪举行

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2022-01-10 DOI: 10.14356/kona.2022023

引用次数: 0

The KONA Award 2020 2020年KONA奖

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2022-01-10 DOI: 10.14356/kona.2022024

引用次数: 0

Correlating Granule Surface Structure Morphology and Process Conditions in Fluidized Bed Layering Spray Granulation 流化床分层喷雾造粒过程中颗粒表面结构形态与工艺条件的关系

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2022-01-10 DOI: 10.14356/kona.2022016

Maik Orth, P. Kieckhefen, Swantje Pietsch, S. Heinrich

引用次数: 5

Grain-size Effects on Mechanical Behavior and Failure of Dense Cohesive Granular Materials 晶粒尺寸对致密粘性颗粒材料力学行为和破坏的影响

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2022-01-10 DOI: 10.14356/kona.2022001

P. Poorsolhjouy, A. Misra

{"title":"Grain-size Effects on Mechanical Behavior and Failure of Dense Cohesive Granular Materials","authors":"P. Poorsolhjouy, A. Misra","doi":"10.14356/kona.2022001","DOIUrl":"https://doi.org/10.14356/kona.2022001","url":null,"abstract":"The grain sizes can significantly influence the granular mechano-morphology, and consequently, the macro-scale mechanical response. From a purely geometric viewpoint, changing grain size will affect the volumetric number density of grain-pair interactions as well as the neighborhood geometry. In addition, changing grain size can influence initial stiffness and damage behavior of grain-pair interactions. The granular micromechanics approach (GMA), which provides a paradigm for bridging the grain-scale to continuum models, has the capability of describing the grain size influence in terms of both geometric effects and grain-pair deformation/dissipation effects. Here the GMA based Cauchy-type continuum model is enhanced using simple power laws to simulate the effect of grain size upon the volumetric number density of grain-pair interactions, and the parameters governing grain-pair deformation and dissipation mechanisms. The enhanced model is applied to predict the macroscopic response of cohesive granular solids under conventional triaxial tests. The results show that decreasing grain-sizes can trigger brittle-to-ductile transition in failure. Grain size is found to affect the compression/dilatation behavior as well as the post-peak softening/hardening of granular materials. The macro-scale failure/yield stress is also found to have an inverse relationship with grain-sizes in consonance with what has been reported in the literature.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"8 1","pages":"2022001"},"PeriodicalIF":4.1,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89939753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Verification of Polyhedral DEM with Laboratory Grinding Mill Experiments 多面体DEM的室内磨机实验验证

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2022-01-10 DOI: 10.14356/KONA.2022013

Alberto M. Puga, N. Govender, R. Rajamani

{"title":"Verification of Polyhedral DEM with Laboratory Grinding Mill Experiments","authors":"Alberto M. Puga, N. Govender, R. Rajamani","doi":"10.14356/KONA.2022013","DOIUrl":"https://doi.org/10.14356/KONA.2022013","url":null,"abstract":"The simulation of grinding mills with the discrete element method (DEM) has been advancing. First, it emerged as a method for studying charge motion with spherical balls and predicting the power draw of the mill. Subsequently, studies on liner wear, charge motion with ellipsoidal and polyhedral shaped particles simulated with three dimensional DEM followed. Further, the impact energy spectra computed in the DEM algorithm is leading to the development of models for the breakage of brittle particles in mills. The core elements in such simulations are the shape of particles in the mill charge and the power draw of the mill due to operating variables. To advance the field, we present a set of experimental data and the corresponding DEM validation results for a 90 × 13 cm mill. The DEM algorithm uses the volume-overlap method which is more realistic for multifaceted irregular particle collisions. Further, we use the scanned shape of the rock media and multifaceted spherical shape for the grinding media to represent as close as possible the actual charge in the mill. First, we present DEM validation for spherical grinding media-only experiments, rock-only experiments, and a mixture of spherical grinding media and rocks, as well as aluminum cubes only to represent the theme of particle shape. Finally, a discussion of the contact mechanics parameters in the four modes of experiments is given. Since the feed ore to plant scale mills can vary in shape, mill simulations with scanned shape of typical particles are the future for more accurate results.","PeriodicalId":17828,"journal":{"name":"KONA Powder and Particle Journal","volume":"35 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81855839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Editor’s Preface 编者前言

IF 4.1 4区材料科学

KONA Powder and Particle Journal Pub Date : 2022-01-10 DOI: 10.14356/kona.2022021

W. Tanthapanichakoon

引用次数: 0