The Effects of Microcell Structure on Quasi-static Compression Performance of PMI Foam

被引：0
|
作者：
Zhou J. [1 ]
Li W. [1 ]
Xue P. [1 ]
机构：
[1] School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai
来源：
Li, Wenxiao (wenxiaoli@tongji.edu.cn) | 1600年 / Cailiao Daobaoshe/ Materials Review卷 / 31期
关键词：
Elastic modulus; Initial peak stress; Kelvin tetrakaidecahedron model; Laguerre tessellation; Polymethacrylimide closed-cell foam;
D O I：
10.11896/j.issn.1005-023X.2017.020.030
中图分类号：
学科分类号：
摘要：
On the basis of the BBC points set, the Kelvin tetrakaidecahedron and Laguerre tessellation models for the polymethacrylimide (PMI) closed-cell foam were established. The quasi-static compression performance was analyzed by finite element method. The effects of cell size and cell volume dispersion on compression modulus, initial peak stress, and energy absorptivity were discussed. Numerical results showed that the tetrakaidecahedron model can predict the compression elastic modulus and initial peak stress of the PMI foam quite well. Under the same relative density, the smaller cell size will lead to higher initial peak stress and higher energy absorption capacity, but lower compression elastic modulus. The compression elastic modulus, initial peak stress and energy absorption capacity of the closed-cell PMI foam decreases with the increasing cell volume dispersion. © 2017, Materials Review Magazine. All right reserved.
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页码：147 / 151
页数：4
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