有限要素法を用いたスパイクシューズの突き上げ評価法

抄録

Shoes used in field sports such as football, rugby and baseball have variable studs on the soles, and these studs are very important parts for players' performance. However, they cause high pressure areas on the foot sole, with pain which sometimes injure the foot. To decrease this feeling is a very serious issue in the designing of spike shoes. So far, pressure feeling has been measured only by sensory evaluational methods, which have had various observational errors. Accordingly, the estimation of pressure feeling by using a numerical approach will become an important key in the designing of spike shoes. In this study, the stress fields distributed on the foot sole when wearing spike shoes were simulated by the finite elements method. Then an evaluational method of pressure feel was proposed by using this analytical stress distribution. The analytical results were compared with experimental ones, focusing on pressure feeling and distribution. By doing this, the validity of this proposed analytical procedure was confirmed. Also, the effects of changing the stud configura tion and loading condition were discussed.