%0 Journal Article %T Impact crushing behavior of foam-filled paraboloid shells using numerical and experimental methods %J Scientia Iranica %I Sharif University of Technology %Z 1026-3098 %A Shams, Sh. %A Haddadpour, H. %A Tuzandejani, H. %A Hosseini, S.A.A. %A Vatanparast, M. %A Zahab, S. %D 2017 %\ 08/01/2017 %V 24 %N 4 %P 1912-1921 %! Impact crushing behavior of foam-filled paraboloid shells using numerical and experimental methods %K dynamic response %K energy absorption %K Impact loading %K Foam-filled parabolic aluminum tube %K Finite Element Analysis %R 10.24200/sci.2017.4282 %X This paper deals with the dynamic response and energy absorption of foam-fi lled aluminum parabolic tubes under axial impact loading. The numerical crush analysis of empty and foam- lled tubes is performed using non-linear nite element techniques. The eff ects of geometrical (wall thickness) and material parameters (foam density and Young's relaxation modulus) on the impact response and energy absorption capacity of foam- filled tube are investigated using numerical models. The results show that the foam propertieshave signi cant e ect on the crushing behavior, force and impact acceleration magnitude, and energy absorption capacity. Furthermore, there is a critical foam density beyond which the structure loses its energy absorption performance. Experimental results acquired from a test setup are used for validating the Finite-Element Analysis (FEA). There is good agreement between numerical and experimental results. %U https://scientiairanica.sharif.edu/article_4282_9f3f75ae8d43bb025e57aa8c8e473815.pdf