2D FE Micromechanics Modelling of Honeycomb Core Sandwich Panels

• Autorzy: Betts Ch. , Lin J. , Balint D. , Atkins A.
• Języki publikacji: EN

Abstrakty

EN

A repeating unit cell 2D ?nite element modelling procedure has been established to model the mechanical behaviour of honeycomb core sandwich panels (e.g. Young’s modulus, energy absorbed, etc.). Periodic boundary conditions have been implemented within the model to simulate an in?nitely long sandwich panel. An analytical solution using Timoshenko beam theory has been developed to predict the Young’s modulus of the honeycomb core, and this has been compared with the FE model results; it is found that there is good agreement between the two values. The FE model can shed light on the mechanics of more complex 3D metal foams.

Słowa kluczowe

EN

micromechanical modelling; sandwich panel; metal foam; honeycomb; finite elements; periodic boundary conditions

PL

modelowanie mikromechaniczne; płyta warstwowa; pianka metalowa; plaster miodu; elementy skończone; periodyczne warunki brzegowe

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2012
• Tom: Vol. 60, iss. 3
• Strony: 187--187
• Opis fizyczny: –-203, Bibliogr. 26 poz., rys., tab., wykr.

Twórcy

autor

Betts Ch.

autor

Lin J.

autor

Balint D.

autor

Atkins A.

• Head of Mechanics of Materials Division Department of Mechanical Engineering, Imperial College Exhibition Road South Kensington London SW7 2AZ,

Bibliografia

• 1. Banhart J., Manufacture, characterisation, and application of cellular materials and metal foams, Prog. in Mat. Sci., 46, 559–632, 2001.
• 2. Ashby M.F., Evans A., Fleck N.A., Gibson L.J., Hutchinson J.W., Wadley H.N.G., Metal foams: a design guide, Butterworth-Heinemann, USA 2000.
• 3. Evans A.G., Hutchinson J.W., Fleck N.A., Ashby M.F., Wadley H.N.G., Thetopological design of multifunctional cellular metals, Prog. in Mat. Sci., 46, 309–327, 2001.
• 4. McCormack T.M., Miller R., Kesler O., Gibson L.J., Failure of sandwich beamswith metallic foam cores, Int. Journal of Solids and Structures, 38, 4901–4920, 2001.
• 5. Sypeck D., Cellular truss core sandwich structures, Applied Composite Materials, 12, 229–246, 2005.
• 6. Wicks N., Hutchinson J.W., Optimal truss plates, Int. Journal of Solids and Structures, 38, 51–65, 2001.
• 7. Ashby M.F., Gibson L.J., Cellular solids structure & properties, Pergamon Press, UK 1998.
• 8. Onck P.R., Andrews E.W., Gibson L.J., Size effects in ductile cellular solids: part I modeling, Int. Journal of Mechanical Sciences, 43, 681–699, 2001.
• 9. Chen C., Lu T.J., Fleck N.A., Effect of imperfections on the yielding of two-dimensional foams, J. Mech. Phys. Solids, 47, 2235–2272, 1999.
• 10. Simone A.E., Gibson L.J., Effects of solid distribution on the stiffness and srength of metallic foams, Acta Mater., 46, 6, 2139–2150, 1998.
• 11. Hodge A.M., Dunand D.C., Measurement and modeling of creep in open-cell NiAl foams, Metallurgical and Materials Transactions, 34A, 2353–2363, 2003.
• 12. Shulmeister V., Van der Burg M.W.D., Van der Giessen E., Marissen R., A numerical study of large deformations of low-density elastomeric open-cell foams, Mechanics of Materials, 30, 125–140, 1998.
• 13. Huang J-S., Gibson L.J., Creep of open-cell Voronoi foams, Materials Science and Engineering, A339, 220–226, 2003.
• 14. Silva M.J., Hayes W.C., Gibson L.J., The effect of non-periodic microstructure on the elastic properties of two-dimensional cellular solids, Int. J. Mech. Sci., 37, 1161–1177, 1995.
• 15. Zhu H.X., Hobdell J.R., Windle A.H., Effects of cell irregularity on the elastic properties of open-cell foams, Acta Materialia, 48, 4893–4900, 2000.
• 16. Papka S.D., Kyriakides S., In-plane compressive response and crushing of honeycomb, J. Mech. Phys. Solids, 42, 1499–1532, 1994.
• 17. Gong L., Kyriakides S., Triantafyllidis N., On the stability of Kelvin cell foams under compressive loads, J. Mech. Phys. Solids, 53, 771–794, 2005.
• 18. Youssef S., Maire E., Gaertner R., Finite element modelling of the actual structure of cellular materials determined by X-ray tomography, Acta Materialia, 53, 719–730, 2005.
• 19. Maire E., Fazekas A., Salvo L., Dendievel R., Youssef S., Cloetens P., Letang J.M., X-ray tomography applied to the characterization of cellular materials. Related finite element modeling problems, Composite Science and Technology, 63, 2431–2443, 2003.
• 20. http://www.ergaerospace.com/index.html, (accessed December 2010).
• 21. Onck P.R., Van Merkerk R., De Hosson T.M., Schmidt I., Fracture of metal foams: in-situ testing and numerical modeling, Advanced Engineering Materials, 6, 429–431, 2004.
• 22. El-Domiaty A.A., Shabara M.A.N., Al-Ansary M.D., Determination of stretchbendability of sheet metals, Int. J. Adv. Manuf. Technol., 12, 207–220, 1996.
• 23. Timoshenko S.P., Strength of materials: part III, advanced theory and problems, D. Van Nostrand Co., New Jersey 1956.
• 24. ABAQUS 6-9.1 User Manual.
• 25. Worsfold M., The Effect of Corrosion on the Structural Integrity of Commercial Aircraft Structure, published in RTO MP-18, 1998.
• 26. Herrmann A.S., Zahlen P., Zuardy I., Sandwich Structures Technology in Commercial Aviation, Sandwich Structures 7: Advancing with Sandwich Structures and Materials, 13–26, 2005.