TWO-DIMENSION FINITE ELEMENT METHOD GEOMETRY MODELING OF POLYCRYSTALLINE MATERIAL MICRO-STRUCTURE

CHEN Zhen; ZHOU JinYu; ZHU FuXian

doi:10.16579/j.issn.1001.9669.2017.04.014

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TWO-DIMENSION FINITE ELEMENT METHOD GEOMETRY MODELING OF POLYCRYSTALLINE MATERIAL MICRO-STRUCTURE

更新时间：2022-09-22

- TWO-DIMENSION FINITE ELEMENT METHOD GEOMETRY MODELING OF POLYCRYSTALLINE MATERIAL MICRO-STRUCTURE
- Journal of Mechanical Strength Vol. 39, Issue 4, Pages: 826-830(2017)
- 作者机构：
  
  1. 江苏理工学院机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.04.014
  CLC：
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CHEN Zhen, ZHOU JinYu, ZHU FuXian. TWO-DIMENSION FINITE ELEMENT METHOD GEOMETRY MODELING OF POLYCRYSTALLINE MATERIAL MICRO-STRUCTURE. [J]. 39(4):826-830(2017)
DOI：

CHEN Zhen, ZHOU JinYu, ZHU FuXian. TWO-DIMENSION FINITE ELEMENT METHOD GEOMETRY MODELING OF POLYCRYSTALLINE MATERIAL MICRO-STRUCTURE. [J]. 39(4):826-830(2017) DOI： 10.16579/j.issn.1001.9669.2017.04.014.

摘要

多晶体微结构有限元建模是多晶体金属材料研究的重要内容之一。针对传统方法应用的局限性以及难以精确建模问题,提出一种新型多晶体材料微结构建模方法。首先根据指定晶粒尺寸分布规律生成权圆,重点分析常规圆产生方法和依据干涉圆的干涉类型生成新圆,然后对各权圆进行边界划分,最后基于四种指定概率密度函数并结合Ansys软件进行多晶体有限元建模和网格划分实验。该方法能根据多样化的晶粒尺寸分布在较小的误差范围内建立微结构模型,有助于提高仿真的精确性和可靠性,且操作简捷。

Abstract

Finite element modeling of polycrystalline micro-structure is one of the important contents of polycrystalline metal material research.In view of the problem of the limited application of traditional methods and the difficulty of precisely modeling for Polycrystalline,Polycrystalline modeling method was proposed in this paper.This method generated weight circles according to the specified grain size distribution first.Normal circles generation method and generating new circle based on the interference types were analyzed and then divided weight circles boundaries.At last,combining with ANSYS,modeling and mesh experiments were carried out according to four specified functions.This method can model according to all kinds of grain size distributions within a small error range,which is helpful to improve the accuracy and reliability of the simulation and its operation is simple.

关键词

多晶体建模材料微结构晶粒尺寸分布有限元

Keywords

Polycrystal modelingMaterial micro-structureGrain size distributionFEM

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