Please use this identifier to cite or link to this item:
|Title:||FEM analysis of energy dissipation in particulate reinforced MMCS|
|Source:||Srikanth, N.,Gupta, M. (2002). FEM analysis of energy dissipation in particulate reinforced MMCS. Proceedings of SPIE - The International Society for Optical Engineering 4753 I : 180-185. ScholarBank@NUS Repository.|
|Abstract:||In the present study, the damping coefficient of particulate reinforced magnesium matrix is predicted using micro-mechanical modelling approach. This technique is based on finite element analysis of an axisymmetric unit-cell model with spherical reinforcing particulates. The effects of matrix plasticity and residual stresses on the damping capacity of the composite are calculated. Results confirm the presence of residual plastic strain accumulating at the interface of the metal matrix and ceramic reinforcement arising due to thermal mismatch, during cooling from extrusion temperature to room temperature. The damping behavior of the metal matrix composite is predicted under a harmonic load by including the viscous behaviour of the residual plastic strain in to account. Results show that the damping capacity of the composite depends on the strain amplitude. To demonstrate the accuracy of the prediction, results were compared against experimental measurements conducted on samples of Mg reinforced with SiC particulates.|
|Source Title:||Proceedings of SPIE - The International Society for Optical Engineering|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 9, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.