Abstract
The objective of this study is to determine the effect of filler volume fraction on apparent diffusivity of particle reinforced dental composites. A simple cubic and a cylindrical finite element cell models was applied. For estimating the effective moisture diffusion coefficient, a mathematical model is proposed. Comparing with the results deduced by Hashin's and Shen's analytical formulas, the proposed model gives reasonable predictions. Moreover, the simple cubic model provides more accurate predictions compared to the cylindrical one. A simple linear empirical formula is also proposed for predicting the effective moisture diffusion coefficient. It is found that the maximum error of the formula is within 5%.
| Original language | Chinese (Simplified) |
|---|---|
| Pages (from-to) | 104-106 |
| Number of pages | 3 |
| Journal | Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) |
| Volume | 35 |
| Issue number | 3 |
| Publication status | Published - 1 Mar 2007 |
Keywords
- 3-D finite element analysis
- Moisture diffusion coefficient
- Particle reinforced dental composites
- Unit cell
ASJC Scopus subject areas
- General Computer Science