化学学报 ›› 2011, Vol. 69 ›› Issue (04): 466-470. 上一篇    下一篇

研究论文

软粒子力学性能的模拟研究

李婷,李剑锋,张红东*,杨玉良   

  1. (复旦大学高分子科学系 聚合物分子工程教育部重点实验室 上海 200433)
  • 收稿日期:2010-04-07 修回日期:2010-08-29 出版日期:2011-02-28 发布日期:2010-09-09
  • 通讯作者: 张红东 E-mail:zhanghd@fudan.edu.cn
  • 基金资助:

    自然科学基金;国家重大基础研究规划

Computer Simulation of Mechanical Properties of Soft Particle

LI Ting, LI Jian-Feng, ZHANG Hong-Dong, YANG Yu-Liang   

  1. (Department of Macromolecular Science, Key Lab of Molecular Engineering of Polymers, Ministry of Education of China, Fudan University, Shanghai 200433)
  • Received:2010-04-07 Revised:2010-08-29 Online:2011-02-28 Published:2010-09-09
  • Contact: Hongdong Zhang E-mail:zhanghd@fudan.edu.cn
  • Supported by:

    ;National Basic Research Program of China

运用弹性膜理论结合三角网格动力学模型模拟研究了平行板压缩软粒子的过程, 仔细考察了压缩过程中软粒子的形状变化、应力响应、力学松弛和粘弹行为. 模拟结果与已有的实验基本一致.

关键词: 模拟, 软粒子, 压缩变形, 力学性质

A triangulated-mesh model, combined with elastic membrane model, was developed to simulate the soft-particle compression, which involves two parallel plates squeezing a soft particle. With this model, we studied a range of mechanical properties of the soft particle including the deformation (shape profile, which was visualized through our simulation) of the membrane, the strength response, stress-relaxation and viscoelastic behaviors of the particle. These results obtained by our model were compared with some existing experiments, indicating excellent agreements.

Key words: simulation, soft particle, deformation, mechanical properties