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Effect of Filler Shape and Volume Fraction on Strain Damage of Particulate-Reinforced Dental Composites

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Abstract:

The effect of filler shape and volume fraction on the micromechanical damage behavior of particulate-reinforced dental composites was investigated using the finite element method. Threedimensional unit cell models for various filler volumes and shapes, using hydroxyapatite in Bis- GMA as a model system, were used. Young’s modulus and stress concentration factor were calculated. The effects of filler shape on the ease of initiation of strain damage in the matrix and onset of particle-matrix debonding are discussed.

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Info:

Periodical:

Materials Science Forum (Volumes 532-533)

Pages:

117-120

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.532-533.117

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Online since:

December 2006

Authors:

Yiu Pong Chan, Chak Yin Tang, Brian W. Darvell, Chi Pong Tsui

Keywords:

Dental Filled-Resin Composites, Particle Shape, Volume Fraction

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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