The effects of particle morphology on the analysis of discrete particle dispersion using Delaunay tessellation

被引:15
作者
Bray, D. J. [1 ]
Gilmour, S. G. [2 ]
Guild, F. J. [1 ]
Taylor, A. C. [1 ]
机构
[1] Imperial Coll London, Dept Mech Engn, London SW7 2AZ, England
[2] Univ Southampton, Stat Sci Res Inst, Southampton SO17 1BJ, Hants, England
基金
英国工程与自然科学研究理事会;
关键词
Particle-reinforcement; Nano-structures; Statistical properties/methods; STATISTICAL-ANALYSIS; PATTERN-ANALYSIS; SIZE; QUANTIFICATION; MECHANISMS;
D O I
10.1016/j.compositesa.2013.07.003
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Particle-reinforced composites and nanocomposites can contain a wide range of discrete particles, of various morphologies (e.g. spherical, fibre, and tube). Two-dimensional micrographs of the material are used to assess whether the particles are well- or poorly-dispersed, but typically use the assumption that all particles are identical and spherical. However we show, by considering elliptical particles, that the sizing and shapes of the discrete particles can change the overall appearance of the system, without the underlying mechanisms changing. Thus our interpretation of particle dispersion is obtained by comparing our measurements to a reference system, which takes into account the particle morphologies, and demonstrates that discrepancies are brought on by oversimplification. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:37 / 45
页数:9
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