Computational evaluation of effective material properties of composites reinforced by randomly distributed spherical particles
Computational evaluation of effective material properties of composites reinforced by randomly distributed spherical particles
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DOI：
10.1016/j.compstruct.2005.07.003
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发表时间：
2007
影响因子：
6.3
通讯作者：
S. Kari;H. Berger;R. Rodríguez‐Ramos;U. Gabbert
中科院分区：
文献类型：
--
作者：
S. Kari;H. Berger;R. Rodríguez‐Ramos;U. Gabbert
本文的目的是评价不同体积分数的球形颗粒增强复合材料的有效材料性能。采用具有代表性体积单元的有限元数值均匀化技术，对具有周期边界条件的有效材料性能进行了数值计算。该数值方法基于有限元法，允许扩展任意几何夹杂形态的复合材料，为快速计算其有效材料性能提供了强有力的工具。采用改进的随机顺序吸附算法（RSA）生成随机分布的球形颗粒的三维RVE模型。将数值均质技术得到的有效材料性能与不同的分析方法进行了比较，结果吻合较好。研究了球形颗粒尺寸和RVE对球形颗粒增强复合材料有效材料性能的影响。
The aim of presenting this paper is to evaluate the effective material properties of spherical particle reinforced composites for different volume fractions up to 60%. A numerical homogenization technique based on the finite element method (FEM) with representative volume element (RVE) was used to evaluate the effective material properties with periodic boundary conditions. The numerical approach is based on the FEM and it allows the extension of the composites with arbitrary geometrical inclusion configurations, providing a powerful tool for fast calculation of their effective material properties. Modified random sequential adsorption algorithm (RSA) was used to generate the three-dimensional RVE models of randomly distributed spherical particles. The effective material properties obtained using the numerical homogenization techniques were compared with different analytical methods and good agreement was achieved. Several investigations had been conducted to estimate the influence of the size of spherical particles and of the RVE on effective material properties of spherical particle reinforced composites.