软粒子力学性能的模拟研究  

Computer Simulation of Mechanical Properties of Soft Particle

作　　者：李婷[1] 李剑锋[1] 张红东[1] 杨玉良[1] 

机构地区：[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

出　　处：《化学学报》2011年第4期466-470,共5页Acta Chimica Sinica

基　　金：国家自然科学基金(Nos.20874019,20990231);国家重大基础研究发展规划(No.2005CB623800)资助项目

摘　　要：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.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.

关 键 词：模拟 软粒子 压缩变形 力学性质 

分 类 号：O482.1[理学—固体物理]