Abstract
The mechanical strength of composite functional films is investigated by numerical simulation in this paper. Such functional film is often required bending strength during assembly. It is calculated composites with method to calculate equivalent macroscopic properties such as equivalent inclusion method and homogenization method, but these methods cannot be considered size effect. Therefore, we developed method to evaluate bending strength of particulate composite film by bending calculation of RVE with relative periodic condition. From the results of DOE bending calculations by the developed method, filler size shows a high contribution rate, however the size under 0.1 um doesn't affects the contribution rate.