Numerical analysis of an open cell foam structure with the use of models based on solid finite elements

• Autorzy: Szymczyk W. , Miedzińska D.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with the numerical analysis of foam materials. Open cell foam is investigated. Numerical simulations allow calculating modes of destruction and assessing effective properties of the model structures. Metal as well as polyurethane foams show out interesting properties. They are light, have good acoustic and/or magnetic isolation, have ability to absorb energy of vibration and hits. They are used for sandwich panels, hit absorber s (i.e. as elements of buffer constructions in rail vehicles), fillers of construction parts, bodies of vehicles (i. e. floating combat vehicles), dividing walls on vessels and others. Specially prepared open cell foams show out auxetic properties and shape memory effect. Such materials are very good for seats in aircrafts which may protect pilots and passengers during crashes and restrict heavy backbone injuries. Foams are used for filtering purposes. Foams themselves or in combination with different types of fillers (i.e. elastomers) or ceramic reinforcement may be used for hit energy absorbing panels for military purposes (protection against explosion shock wave and splinters). Presented work is apart of a series of numerical experiments which aim is to investigate the influence of geometry parameters onto effective properties of the foam. Different types of geometries are used for numerical experiments. All the models of single foam cell are based on Kelvin grain geometry. Numerical compression tests performed with the use of models based on solid finite elements provide studying the process of the structure failure. Effective characteristics of investigated foams show out that such materials would be useful for energy absorbing purposes.

Słowa kluczowe

EN

FEM modelling; open cell foam structure; effective properties

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2009
• Tom: Vol. 16, No. 3
• Strony: 409--414
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Szymczyk W.

autor

Miedzińska D.

• Military University of Technology Department of Mechanics and Applied Computer Science Gen. Sylwestra Kaliskiego Street 2, 00-908 Warsaw, Poland tel: [phone], fax: [phone],

Bibliografia

• [1] Biswal, B., Manwart, C., Hilfer, R., Three-Dimensional Local Porosity Analysis of Porous Media, Physica A, Vol. 255, pp. 221-241, 1998.
• [2] Danielsson, M., Parks, D. M., Boyce, M. C., Three-Dimensional Micromechanical Modeling of Voided Polymeric Materials, Journal of Mechanics and Physiscs of Solids, Vol. 50, pp. 351-379, 2002.
• [3] Gibson, L. J., Ashby, M. F., Zhang, J., Triantafillou, T. C., Failure Surfaces for Cellular Materials under Multiaxial Loads: Modeling, International Journal of Mechanical Sciences, Vol. 31, No. 9, p. 635, 1989.
• [4] Huang, W., Donato, G., Blunt, M. J., Comparison of Streamline-Based and Grid-Based Dual Porosity Simulation, Journal of Petroleum Science and Engineering, Vol. 43, pp. 129-137, 2004.
• [5] Kraynik, A. M., Reinelt, D. A., Linear Elastic Behavior of Dry Soap Foams, Journal of Colloid and interface Science, Vol. 181, pp. 511-520, 1996.
• [6] Kutner, R., Sullivan, J. M., Comparing the Weaire-Phelan Equal-Volume Foam to Kelvin’s Foam, Forma, Vol. 11, No. 3, pp. 164-330, 1996.
• [7] Lee, K., Ghosh, S., A Microstructure Based Numerical Method for Constitutive Modeling of Composite and Porous Materials, Materials Science and Engineering A, Vol. 272, pp. 120-133, 1999.
• [8] Li, Y., LeBoeuf, E. J., Basu, P. K., Mahadevan, S., Stochastic Modeling of the Permeability of Randomly Generated Porous Media, Advances in Water Resources, Vol. 28, pp. 835-844, 2005.
• [9] Mishnaevsky, Jr L. L., Automatic Voxel-Based Generation of 3D Microstructural FE Models and Its Application to the Damage Analysis of Composites, Materials Science and Engineering A, Vol.407, pp. 11-23, 2005.
• [10] Shoshany, Y., Prialnik, D., Podolak, M., Monte Carlo Modeling of the Thermal Conductivity of Porous Cometary Ice, Icarus, Vol. 157, p. 219, 2002.
• [11] Sihn S., Roy A. K., Modeling And Prediction of Bulk Properties of Open-Cell Carbon Foam, Journal of Mechanics and Physics of Solids, Vol. 52, pp. 167-191, 2004.