Finite Element Simulation on the Mechanical Properties of Microcellular Polyurethane Elastomers

Qiao-yue Chen; Ming-ming Ding; Yi-neng Huang; Yu-xi Jia; Tong-fei Shi

doi:10.11777/j.issn1000-3304.2015.15110

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Finite Element Simulation on the Mechanical Properties of Microcellular Polyurethane Elastomers

Research Bulletin | 更新时间：2021-03-19

- Finite Element Simulation on the Mechanical Properties of Microcellular Polyurethane Elastomers
- Acta Polymerica Sinica Issue 10, Pages: 1231-1234(2015)
- 作者机构：
  
  1. 伊犁师范学院物理科学与技术学院新疆凝聚态相变与微结构实验室伊宁,835000
  2. 中国科学院长春应用化学研究所高分子物理与化学国家重点实验室,长春,130022
  3. 南京大学物理学院国家固体微结构重点实验室,南京,210093
  4. 山东大学材料液固结构演变与加工教育部重点实验室,济南,250061
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2015.15110
  CLC：
- Published：20 October 2015，
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Qiao-yue Chen, Ming-ming Ding, Yi-neng Huang, Yu-xi Jia, Tong-fei Shi. Finite Element Simulation on the Mechanical Properties of Microcellular Polyurethane Elastomers. [J]. Acta Polymerica Sinica (10):1231-1234(2015)
DOI：

Qiao-yue Chen, Ming-ming Ding, Yi-neng Huang, Yu-xi Jia, Tong-fei Shi. Finite Element Simulation on the Mechanical Properties of Microcellular Polyurethane Elastomers. [J]. Acta Polymerica Sinica (10):1231-1234(2015) DOI： 10.11777/j.issn1000-3304.2015.15110.

摘要

利用COMSOL Multiphysics V4.4多物理场耦合分析软件

构建了微孔聚氨酯弹性体的二维计算模型.不仅计算了控制孔数不变改变孔径引起的孔密度的变化对应力的影响

而且还计算了控制孔径不变改变孔数引起的孔密度的变化对应力的影响.模拟结果发现孔密度是影响材料力学性能的重要因素

即当孔密度小于0.4时

应力随孔密度成线性增大

而当孔密度大于0.5时

应力随孔密度成非线性增大

泡孔的增韧作用显著.不仅如此

还发现减小泡孔孔径的波动范围有利于材料力学性能的稳定.

Abstract

A two-dimensional microscopic model of microcellular polyurethane elastomer (MPUE) was established by using COMSOL MultiphysicsV4.4 of the multiphysics finite element analysis.Based on the same hole size

the effect of the hole density was calculated

as a result

it significantly affects the mechanical properties of the MPUE.In addition

based on the same hole number

the corresponding hole density also affects the mechanical properties of the MPUE.The results indicate that the hole density is important in affecting the mechanical properties of the MPUE.When the hole density is less than 0.4

the stress increases linearly with the increase of the hole density; while when it is greater than 0.5

the stress increases nonlinearly with the increase of the hole density and the toughening effect of the holes are more obvious.In addition

the fluctuation of the hole size makes an increase of the stress

while reducing the variance of the hole size can improve the stability of the mechanical properties of MPUE.

关键词

微孔聚氨酯弹性体力学性能有限元模拟

Keywords

Microcellular polyurethane elastomerMechanical propertyFinite element simulation

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Related Institution

National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University

Institute for Advanced Study, Chengdu University

Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China

Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China

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