随机Kelvin胞体开孔泡沫结构模型边界条件及应用

系统仿真学报 ›› 2016, Vol. 28 ›› Issue (1): 190-199.

随机Kelvin胞体开孔泡沫结构模型边界条件及应用

齐敏菊¹, 高光发^2,3,4

1.淮南师范学院计算机与信息工程系,安徽淮南 232001;
2.安徽理工大学能源与安全学院,安徽淮南 232001;
3.中国科技大学近代力学系,安徽合肥 230027;
4.新加坡国立大学工程学院,新加坡 120425

收稿日期:2014-08-26 修回日期:2014-12-29 发布日期:2020-07-02
作者简介:齐敏菊(1978-),女,河北保定,硕士,讲师,研究方向为计算机在工程中的应用;高光发(1980-),男,湖北黄冈,博士,教授,研究方向为波动力学、计算力学。
基金资助:
国家自然科学基金(11202206, 11472008); 教育部博士点专项基金(20123415120001)

Boundary Conditions for Model of Random Kelvin cell Open-cell Foam and Its Application on Open-cell Aluminum Foam

Qi Minju¹, Gao Guangfa^2,3,4

1. Department of Computer and Information Engineering, Huainan Normal University, Huainan 232001, China;
2. School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001, China;
3. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China;
4. Faculty of Engineering, National University of Singapore, Singapore 120425, Singapore

Received:2014-08-26 Revised:2014-12-29 Published:2020-07-02

摘要/Abstract

摘要： 利用Python和Abaqus解决了泡沫材料非垂直切割造成边界出现“浮动”边等问题,同时研究了自由边界、固定边界条件材料的准静态压缩特性,在此基础上提出并分析了周期边界,并对周期性边界设置中几种情况进行讨论和实现,同时,对此过程中相关思路、关键算法加以说明。最后,以开孔泡沫铝为例,对三种边界条件情况下随机Kelvin胞体开孔泡沫铝在准静态压缩过程中的力学行为进行了对比分析研究。研究成果对开孔泡沫材料的数值仿真研究具有一定的参考价值。

关键词: 算法设计, 开孔泡沫, 随机Kelvin胞体, 泡沫铝, 边界条件

Abstract: The random Kelvin cell open-cell foam model, the further investigations on the boundary conditions of the model were carried out using the Python scripting language and the commercial code ABAQUS. The ‘floating' edges in boundary, owing to being cut with slanted planes, were eliminated. The compressive behaviors of the material under free boundary condition and fixed boundary condition were investigated and comparatively analyzed. On the basis of the above results, the periodic boundary condition was developed, and the method of setting the periodic boundary condition under several different conditions was discussed. The methodology for the design and implement for the key algorithms in the process of modeling were presented. Aiming at the open cell Aluminum foam, the compressive response of the random Kelvin cell open-cell foam structure under the three boundary conditions and quasi-static compression were numerically investigated and comparatively analyzed.

Key words: algorithms design, open-cell foam, random kelvin cell, aluminum foam, boundary conditions

中图分类号:

TP399
O341

齐敏菊, 高光发. 随机Kelvin胞体开孔泡沫结构模型边界条件及应用[J]. 系统仿真学报, 2016, 28(1): 190-199.

Qi Minju, Gao Guangfa. Boundary Conditions for Model of Random Kelvin cell Open-cell Foam and Its Application on Open-cell Aluminum Foam[J]. Journal of System Simulation, 2016, 28(1): 190-199.

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