3D finite element simulation of sandwich panels with a functionally graded core subjected to low velocity impact

Etemadi, E, Afaghi Khatibi, A and Takaffoli, M 2008, '3D finite element simulation of sandwich panels with a functionally graded core subjected to low velocity impact', Composite Structures, vol. 89, no. 1, pp. 28-34.


Document type: Journal Article
Collection: Journal Articles

Title 3D finite element simulation of sandwich panels with a functionally graded core subjected to low velocity impact
Author(s) Etemadi, E
Afaghi Khatibi, A
Takaffoli, M
Year 2008
Journal name Composite Structures
Volume number 89
Issue number 1
Start page 28
End page 34
Total pages 7
Publisher Elsevier
Abstract Three-dimensional finite element simulations were conducted for analyzing low velocity impact behavior of sandwich beams with a functionally graded (FG) core. After validating the finite element model using available analytical data, the effects of projectile initial velocity and kinetic energy, as well as the beam's dimensions on the impact behavior and indentation and displacement history were studied. It was concluded from these observations that for sandwich beams having functionally graded cores, the maximum contact force increases and the maximum strain decreases compared to those of sandwich beams with a homogenous core.
Subject Aerospace Materials
Composite and Hybrid Materials
Numerical Modelling and Mechanical Characterisation
Keyword(s) contact
finite element
functionally graded materials
indentation
low velocity impact
sandwich materials
DOI - identifier 10.1016/j.compstruct.2008.06.013
Copyright notice © Elsevier
ISSN 0263-8223
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