Failure analysis of chosen 3D numerical models of an open cell foam

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

Abstrakty

EN

Metal and polyurethane foams exhibit interesting properties. They are light, have good acoustic and/or magnetic isolation as well as ability to absorb the vibration and impact energy. They are used for sandwich panels, impact absorbers (i.e. as elements of the buffer constructions in rail vehicles), fillers ofconstruction parts, bodies of vehicles (i.e. floating combat vehicles) and for dividing walls of vessels and others. Speciflcally made open cell foams demonstrate auxetic properties and the shape memory effect. Such materials are very good for seats in aircrafts which may protect pilots and passengers during crashes and limit heavy backbone injuries. Foams are used for filtering purposes. Foams or their in combination with different types of fillers (i.e. elastomers) or the ceramic reinforcement may be used in impact energy absorbing panels for military aim (protection against an explosion shock wave and splinters). In the paper aluminium open-cell foam structures were investigated for their energy absorption ability. For this purpose a series of numerical 3D models were applied. Geometry of the models was based on Kehin's polyhedrons. Tests of uniaxial compression were simulated with the use of LS-Dyna computer code. Complex contact phenomena were considered. Preliminary test were performed with the use of single foam cell models. Further simulations were conducted using 3x3x3 cell models. The results were analyzed as force/time characteristics.

Słowa kluczowe

EN

FEM modelling; open cell foam structure

• 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: 2010
• Tom: Vol. 17, No. 1
• Strony: 449--454
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Szymczyk W.

autor

Miedzińska D.

• Military University of Technology Department of Mechanics and Applied Informatics Gen. S. Kaliskiego 2. Street, 00-908 Warsaw,

Bibliografia

• [1] Biswal, B., Manwart, C., Hilfer, R., Three-dimensional local porosity analysis of porous media, Physica A 255, pp. 221-241, 1998.
• [2] Danielsson, M., Parks, D. M., Boyce, M. C., Three-dimensional micromechanical modelling of voided polymeric materials, Journal of Mechanics and Physiscs of Solids 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: modelling, Int. J. Mech. Sci. 31 (9), 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 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 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 modelling of composite and porous materials, Materials Science and Engineering A272, pp. 120-133, 1999.
• [8] Li, Y., LeBoeuf, E. J., Basu, P. K., Mahadevan, S., Stochastic Modelling Of The Permeability Of Randomly Generated Porous Media, Advances in Water Resources 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 407, pp. 11-23, 2005.
• [10] Shoshany, Y., Prialnik, D., Podolak, M., Monte Carlo Modelling of the Thermal Conductivity of Porous Cometary Ice, Icarus 157, 219, 2002.
• [11] Sihn, S., Roy A. K., Modelling And Prediction Of Bulk Propertiesof Open-Cell Carbon Foam, Journal of Mechanics and Physics of Solids 52, pp. 167-191, 2004.