Scientia Iranica

Scientia Iranica

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

Document Type : Research Article

Authors
Sh. Shams 1
H. Haddadpour 2
H. Tuzandejani 3
S.A.A. Hosseini 4
M. Vatanparast 5
S. Zahab 6
1 Department of Aerospace Engineering, Faculty of New Sciences and Technologies, University of Tehran, North Kargar Street, Tehran, Postcode: 1439957131, Iran
2 Department of Aerospace Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-8639, Iran
3 Department of Aerospace Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-8639, Iran.
4 Faculty of Engineering, Kharazmi University, Tehran, P.O. Box 15719-14911, Iran.
5 Department of Mechanical Engineering, Iran University of Science & Technology, Tehran, Iran
6 Department of Aerospace Engineering, Amirkabir University of Technology, Tehran, Iran
10.24200/sci.2017.4282
Abstract
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 properties
have 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.
Keywords
dynamic response
energy absorption
Impact loading
Foam-filled parabolic aluminum tube
Finite Element Analysis
Subjects
Scientia Iranica
Volume 24, Issue 4
Transactions on Mechanical Engineering (B)
July and August 2017
Pages 1912-1921

  • Receive Date 04 March 2015
  • Revise Date 15 June 2016
  • Accept Date 14 August 2016