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Impact crushing behavior of foam-filled paraboloid shells using numerical and experimental methods

Shams, S ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.24200/sci.2017.4282
  3. Publisher: Sharif University of Technology , 2017
  4. Abstract:
  5. This paper deals with the dynamic response and energy absorption of foam-filled aluminum parabolic tubes under axial impact loading. The numerical crush analysis of empty and foam-filled tubes is performed using non-linear finite element techniques. The effects 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 properties have significant effect 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. © 2017 Sharif University of Technology
  6. Keywords:
  7. Dynamic response ; Energy absorption ; Finite element analysis ; Foam-filled parabolic aluminum tube ; Impact loading ; Aluminum ; Crushing ; Foams ; Numerical methods ; Absorption performance ; Acceleration magnitude ; Aluminum tubes ; Energy absorption capacity ; Impact loadings ; Material parameter ; Non-linear finite elements ; Numerical and experimental methods ; Finite element method
  8. Source: Scientia Iranica ; Volume 24, Issue 4 , 2017 , Pages 1912-1921 ; 10263098 (ISSN)
  9. URL: http://scientiairanica.sharif.edu/article_4282.html