B-45 シューズミッドソールの材料設計(シューズ)

概要

論文の詳細を見る
EVA (Ethylene Vinyl Acetate) foam with low fabrication cost and good durability has been usually applied to shoe midsole. In the designing process of shoe sole, the material properties must be clarified. However the foam has high non-linearity and strain rate dependency. It is well known that the properties are strongly effected by raw material content and foaming ratio. In this study various EVA foam sheets with different contents and foaming ratio are practically fabricated. The material properties under not only static compressive loading but also dynamic loading conditions, and both the results are compared. Therefore it was confirmed that energy loss which can be an index of sole cushioning depends on strain range in plateau region under the static compression.
一般社団法人日本機械学会の論文
2009-12-02