Browse > Article
http://dx.doi.org/10.7736/KSPE.2012.29.7.785

Modeling of the Elasto-plastic Deformation Behavior of Two-Dimensional Anisotropic Foam under Compressive Loads using Voronoi Cells  

Han, Won-Hee (Graduate School, Korea Univ.)
Choi, Byoung-Ho (School of Mechanical Engineering, Korea Univ.)
Kim, Il-Hyun (Graduate School, Korea Univ.)
Lee, Jeong-Moo (Tech Center, LG Chem.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.29, no.7, 2012 , pp. 785-792 More about this Journal
Abstract
Foam structure is usually hard to model due to the complexity of the geometry of cells. So, many simplified models to represent complicated foam structures have been proposed, but most of them are not actually describe the random feature of the cell structure well. So, in this study, two dimensional isotropic and anisotropic closed cell structures of the foam were modeled using the concept of Voronoi cells. The elasto-plastic deformation behavior under compressive loads was investigated by finitie element analysis, and the results were compared with ideal honeycomb structure. In addition, the effect of anisotropy of Voronoi cell structures of the foam on Young's modulus and yield stress under compressive loads was studied.
Keywords
Foam; Voronoi Cell; Honeybomb Structure; Anisotropy; Finite Element Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Gan, Y. X., Chen, C., and Shen, Y. P., "Three- Dimensional Modeling of the Mechanical Property of Linearly Elastic Open Cell Foams," International Journal of Solids and Structures, Vol. 42, No. 26, pp. 6628-6642, 2005.   DOI
2 De Giorgi, M., Carofalo, A., Dattoma, V., Nobile, R., and Palano, F., "Aluminium Foams Structural Modelling," Computers and Structures, Vol. 88, No. 1-2, pp. 25-35, 2010.   DOI   ScienceOn
3 Saint-Michel, F., Chazeau, L., Cavaille, J.-Y., and Chabert, E., "Mechanical Properties of High Density Polyurethane Foams: I. Effect of the Density," Composites Science and Technology, Vol. 66, No. 15, pp. 2700-2708, 2006.   DOI   ScienceOn
4 Shafizadeh, J. E. and Seferis, J. C., "Scaling of Honeycomb Compressive Yield Stresses," Composites Part A: Applied Science and Manufacturing, Vol. 31, No. 7, pp. 681-688, 2000.   DOI
5 Han, W. H., Choi, B.-H., and Lee, J. M., "A Study on the Deformation Behavior of Anisotropic Foam under Compression Load using 2-D Voronoi Cell," Proc. of KSPE Spring Conference, pp. 1189-1190, 2011.
6 Papka, S. D. and Kryiakides, S., "In-plane Compressive Response and Crushing of Honeycomb," Journal of the Mechanics and Physics of Solids, Vol. 42, No. 10, pp. 1499-1532, 1994.   DOI
7 Taylor, C. M., Smith, C. W., Miller, W., and Evans, K. E., "The Effects of Hierarchy on the In-plane Elastic Properties of Honeycombs," International Journal of Solids and Structures, Vol. 48, No. 9, pp. 1330-1339, 2011.   DOI
8 Reem, D., "An Algorithm for Computing Voronoi Diagrams of General Generators in General Normed Spaces," Proceedings of Sixth International Symposium on Voronoi Diagrams, pp. 144-152, 2009.
9 Kim, A. and Kim, I., "Effect of Specimen Aspect Ratio on Fatigue Life of Closed Cell Al-Si-Ca Alloy Foam," Acta Mechanica Solida Sinica, Vol. 21, No. 4, pp. 354-358, 2008.   DOI
10 Dao, M., Chollacoop, N., Van Vliet, K. J., Venkatesh, T. A., and Suresh, S., "Computational Modelling of the Forward and Reverse Problems in Instrumented Sharp Indentation," Acta Materialia, Vol. 49, No. 19, pp. 3899-3918, 2001.   DOI
11 Gibson, L. J. and Ashby, M. F, "Cellular Solids- Structure and Properties, 2nd Edn.," Cambridge University Press, 1997.
12 Badiche, X., Forest, S., Guibert, T., Bienvenu, Y., Bartout, J.-D., Ienny, P., Croset, M., and Bernet, H., "Mechanical Properties and Non-homogeneous Deformation of Open-cell Nickel Foams: Application of the Mechanics of Cellular Solids and Porous Materials," Materials Science and Engineering: A, Vol. 289, No. 1-2, pp. 276-288, 2000.   DOI
13 Jeon, Y. P. and Kang, C. G., "Effects of Viscosity Control by Induction Heating on Micro Cell in Forming Process of Foamed Aluminum," J. of KSPE, Vol. 19, No. 6, pp. 136-144, 2002.   과학기술학회마을
14 Kim, A., Tunvir, K., Jeong, G. D., and Cheon, S. S., "A Multi-cell FE Model for Compressive Behaviour Analysis of Heterogeneous Al-alloy Foam," Modelling and Simulation in Materials Science and Engineering, Vol. 14, No. 6, pp. 933-945, 2006.   DOI   ScienceOn
15 Hall, R. B. and Hager, J. W., "Performance Limits for Stiffness-Critical Graphitic Foam Structures. Part I: Comparisons with High-Modulus Foams, Refractory Alloys and Graphite-Epoxy Composites," Journal of Composite Materials, Vol. 30, No. 17, pp. 1922-1937, 1996.   DOI
16 Choi, B.-H., Chudnovsky, A., and Sehanobish, K., "Modeling of Failure Mechanisms Using the True Stress-Strain Response of Polymeric Foam Material," Proceedia Engineering, Vol. 10, pp. 1609-1614, 2011.   DOI
17 Shinko Wire Company, http://www.shinko-wire.co.jp
18 Kirca, M., Gui, A., Ekinci, E., Yardim, F., and Mugan, A., "Computational Modeling of Micro-cellular Carbon Foams," Finite Elements in Analysis and Design, Vol. 44, No. 1-2, pp. 45-52, 2007.   DOI
19 Meguid, S. A., Cheon, S. S., and El-Abbasi, N., "FE Modelling of Deformation Localization in Metallic Foams," Finite Elements in Analysis and Design, Vol. 38, No. 7, pp. 631-643, 2002.   DOI   ScienceOn