期刊文献+

利用随机模型计算低密度开孔泡沫材料的弹性模量 被引量:14

Calculation of the Elastic Modulus of Low Density Open-Cell Foams with Random Model
下载PDF
导出
摘要 利用Voronoi随机几何模型来描述低密度开孔泡沫材料的内部微结构,并用有限元方法计算了低密度开孔泡沫材料的弹性模量。同时,讨论了泡沫材料相对密度和胞体支柱横截面形状对材料整体模量性质的影响。结果表明,相对密度小的开孔泡沫材料,其计算结果与经验公式吻合得很好。 The micro-structure of low density open-cell foams can be modeled by Voronoi tessellation. By using this random geometric model, the modulus of low density open-cell foams is calculated. The influences of relative density and the shape of strut cross-section on the modulus are also discussed at the same time. The calculated results fit well with Gibson's semi-empirical model.
出处 《航空学报》 EI CAS CSCD 北大核心 2004年第2期130-132,共3页 Acta Aeronautica et Astronautica Sinica
基金 国家自然科学基金(10072007) NSAF联合基金(10276004)资助项目
关键词 模量 随机模型 开孔泡沫 VORONOI 分布 Calculations Density (specific gravity) Elasticity Finite element method Microstructure
  • 相关文献

参考文献10

  • 1van der Burg M M D, Shulmeister V, van der Burg E R M. On the linear elastic properties of regular and random open-cell foam models [J]. J Cell Plast, 1997,33:31-54. 被引量:1
  • 2Shulmeister V, van der Burg M M D, van der Burg, E R M. A numerical study of large deformations of low-density elastomeric open-cell foams [J]. Mech Mater, 1998, 30:125-140. 被引量:1
  • 3Roberts A P, Garboczi E J. Elastic moduli of model random three-dimensional closed-cell cellular solids [J]. Acta Materialia, 2001, 49: 189-197. 被引量:1
  • 4Roberts A P, Garboczi E J. Elastic properties of model random three-dimensional closed-cell cellular solids [J]. J Mech Phys Solids, 2002, 50(1): 33-55. 被引量:1
  • 5Zhu H X, Windle A H. Effects of cell irregularity on the high strain compression of open-cell foams [J]. Acta Materialia, 2002, 50: 1041-1052. 被引量:1
  • 6Huang J S,Gibson L J. Creep of open-cell Voronoi foams[J]. Mater Sci Eng, 2003, A339:220-226. 被引量:1
  • 7Gibson L J, Ashby M F. Cellular solids: structure and properties [M]. Oxford: Pergamon Press, 1988. 被引量:1
  • 8Zhu H X, Knott J F, Mills N J. Analysis of the elastic properties of open-cell foams with tetrakaidecahedral cells [J]. J Mech Phys Solids, 1997, 45(3): 319-343. 被引量:1
  • 9卢子兴,李怀祥,田常津.聚氨酯泡沫塑料胞体结构特性的确定[J].高分子材料科学与工程,1995,11(2):86-91. 被引量:24
  • 10卢子兴,王仁,黄筑平,韩铭宝,田常津,李怀祥.泡沫塑料力学性能研究综述[J].力学进展,1996,26(3):306-323. 被引量:51

二级参考文献28

共引文献72

同被引文献177

引证文献14

二级引证文献127

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部