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Journal of Nanomaterials
Volume 2012, Article ID 615489, 7 pages
http://dx.doi.org/10.1155/2012/615489
Research Article

Study on the Compressive Modulus of Nylon-11/Silica Nanocomposites

1Department of Mechanical and System Design Engineering, Hongik University, 72-1 Sangsu-dong, Mapo-gu, Seoul 121-791, Republic of Korea
2Department of Mechanical Engineering, Sogang University, 1 Shinsoo-dong, Mapo-gu, Seoul 100-611, Republic of Korea

Received 22 January 2012; Accepted 13 March 2012

Academic Editor: Sevan P. Davtyan

Copyright © 2012 Haseung Chung et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper investigates the unusual characteristics regarding the mechanical properties of Nylon-11 filled with different volume fractions of silica nanoparticles by selective laser sintering (SLS) from numerical simulation. The compressive modulus was predicted by two different numerical models and compared with the experimentally measured one. While the two-phase model has a limited capability in explaining the unusual behavior shown in the compressive modulus obtained by experiments with 2% volume fraction of nanoparticles, the effective interface model can simulate the unexpected characteristic of nanocomposites according to the volume fraction of nanoparticles. We can conclude that the effective interface model should be employed to predict the mechanical properties of nanocomposites for efficiency and accuracy.