Stochastic Homogenization Analysis of Short Fiber Reinforced Composites Fabricated by Injection Molding Considering Variation in Fiber Orientation Distribution

Abstract

Fiber orientation of the short fibers in composites fabricated by injection molding will be difficult to be perfectly controlled, and it will be randomly distributed. In particular, the random fiber orientation will not distribute uniformly, and it will take certain conditions such as filling speed and cavity pressure. For this problem, an influence of a biased distribution of the random fiber orientation on the homogenized elastic properties should be investigated. In this paper, a stochastic homogenization analysis using Monte Carlo simulation considering biased random fiber orientation distribution of short fibers in fiber reinforced composites is performed, and the influence the biased fiber orientation distribution is discussed.