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١. Galehdari, S.A., Kadkhodayan, M., Hadidi-moud, S., "Analytical, experimental and numerical study of a graded honeycomb structure under in-plane impact load with low velocity", International Journal of Crashworthiness, ٢٠١٥, Vol. ٢٠, No. ٤, ٣٨٧–٤٠٠.

٢. Vyacheslav, N., Sadowski, T., "Analysis of structural performance of sandwich plates with foam-filled aluminum hexagonal honeycomb core", Computational Materials Science, ٢٠٠٩, Vol. ٤٥, pp. ٦٥٨-٦٦٢.

www.mechconf.ir ١١ ٣. Aktay, L., Toksoy, AK., Guden, M., "Quasi-static axial crushing ofextruded polystyrene foam- filled thin-walled aluminum tubes: Experimental and numerical analysis", Materials and Design, ٢٠٠٦, Vol. ٢٧, pp. ٥٥٦-٥٦٥.

٤. Hanssen, AG., Langseth, M., Hopperstad, OS., "Static and dynamic crushing of circular aluminium extrusions with aluminium foam filler", International Journal of Impact Engineering, ٢٠٠٠, Vol. ٢٤, pp ٤٧٥–٥٠٧.

٥. Shujuan, H., Qing, L., Shuyao, L.,Xujing, Y.,Wei, L., "Crashworthiness design for foam filled thin-wall structures", Materials and Design, ٢٠٠٩, Vol. ٣٠, pp ٢٠٢٤–٢٠٣٢.

٦. Akay, M., Hanna, R., "A comparison of honeycomb-core and foam-core carbonfiber/epoxy sandwich panels", Composites, ١٩٩٠,Vol. ٢١, No. ٤, pp ٣٢٥–٣٣١.

٧. Suvorov, AP., Dvorak, GJ., "Dynamic response of sandwich plates to mediumvelocity impact", Journal of Sandwich Structures and Materials, ٢٠٠٥, Vol. ٧, No. ٥, pp. ٣٩٥–٤١٢.

8. Alavi Nia, A., Sadeghi, M.Z., "The effects of foam filling on compressive response of hexagonal cell aluminum honeycombs under axial loading-experimental study", Materials and Design, 2010, Vol. 31, pp. 1216–1230.

9. Molatefi, H., Mozafari, H., "Investigation on in-plane behavior of bare and foam-filled honeycombs in quasi-static and dynamic states by using numerical method", Modares Mechanical Engineering, 2015, Vol. 14, No. 15, pp. 177-185. (In Persian)