OS0419 一次摂動法を用いた短繊維強化複合材料の確率的質化解析(先端材料システムの力学とメゾスケールモデリング,オーガナイズドセッション)

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This paper describes stochastic homogenization analysis of a short-fiber reinforced composite material with using the first-order perturbation-based stochastic homogenization method. In this paper, the fibers are aligned unidirectionally, and a geometrical variable is only length of the short fiber. Using the perturbation-based technique, influence of the length of the short fiber on the stochastic property of a homogenized elastic property of a short fiber reinforced composite material is investigated. At first, from comparison between the perturbation-based approach and the Monte-Carlo simulation, validity of the perturbation-based approach is investigated. Next, with the numerical results, a relationship between the stochastic characteristics and the length of the fiber are illustrated.
2009-07-24