Please use this identifier to cite or link to this item:
Title: Finite element based energy dissipation studies of Al-SiC composites
Authors: Srikanth, N.
Tun, K.K. 
Gupta, M. 
Keywords: Anelasticity
Damping coefficient
Loss factor
Plastic zone
Issue Date: 2003
Citation: Srikanth, N., Tun, K.K., Gupta, M. (2003). Finite element based energy dissipation studies of Al-SiC composites. Journal of Composite Materials 37 (15) : 1385-1390. ScholarBank@NUS Repository.
Abstract: In the present study, the damping capacity of Al-SiC composite formulations is predicted using a visco-plasticity based micro-mechanical modelling approach. The model is based on finite element analysis of an axisymmetric unit cell, which mimics a pure Al cylinder with a spherical SiC reinforcing particulate placed at the centre. The energy dissipated by the composite is numerically predicted using the unit cell by applying a harmonic load, taking into account the viscous behavior of the processing induced residual plastic strain at the matrix-reinforcement interface of the composite. The model shows that the plastic zone size increases with volume fraction of SiC added resulting in a proportional increase in damping capacity of the composite. The model was validated by comparing the numerical results against an impact based suspended beam experiment conducted at low strain amplitude on Al-SiC samples with different volume fraction of SiC particulates. In addition, an attempt has been made to study the effect of particulates' stress concentration features as well as process-induced defects on the overall damping capacity of the composite.
Source Title: Journal of Composite Materials
ISSN: 00219983
DOI: 10.1177/0021998303034362
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Dec 17, 2018


checked on Dec 17, 2018

Page view(s)

checked on Oct 13, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.