年次大会
Online ISSN : 2424-2667
ISSN-L : 2424-2667
セッションID: J191024
会議情報
J191024 単繊維間樹脂流動によるボイド発生機構のマイクロ流体実験モデルによる検討([J19102]構造・材料の高度化に向けた宇宙工学と材料力学の展開(2))
密山 泰用山口 耕作井上 康博石田 和希北條 正樹
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会議録・要旨集 フリー

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抄録
Voids, that could be the origin of fractures in composite materials, are likely formed in between filaments during resin impregnation. To reduce these microvoids, it is important to clarify the mechanism of microvoid generation. In our previous study, we constructed an experimental model using a microfluidic-device in which many pillars have been arranged hexagonally and observed the flow behavior during microvoid generation. Our results showed that microvoid generation correlates to velocity, viscosity of the fluid and geometric distance between adjacent pillars. To evaluate these relationships without cumulative effects arisen from surrounded pillars and random shape of the flow front, we constructed another microfluidic-device in which two pillars are aligned with a distance along the flow direction. Using this simplified experimental model, our results showed that there is velocity criterion in determination of microvoid generation.
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© 2011 一般社団法人 日本機械学会
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